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Littérature scientifique sur le sujet « Q-bit »

Auteur : Grafiati
Publié le 10 mars 2023

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Articles de revues sur le sujet "Q-bit"

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Dawes, Joycelin. « The Q-Bit ». Journal for the Study of Spirituality 3, no 2 (novembre 2013) : 107–22. http://dx.doi.org/10.1179/2044024313z.00000000011.

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Rose, O. « The Q-bit scheme ». ACM SIGCOMM Computer Communication Review 22, no 2 (avril 1992) : 29–42. http://dx.doi.org/10.1145/141800.141803.

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Maji, Kajal, et Kousik Mukherjee. « Design and Analysis of X-OR Gate and 4-Bit Binary to 4-Bit Gray and Gray to Binary Code Converter Using Dual Control Dual SOA TOAD (DCDS-TOAD) ». Micro and Nanosystems 12, no 3 (1 décembre 2020) : 175–86. http://dx.doi.org/10.2174/1876402912666200123105631.

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Background: In this paper we have design and analyzed 4-bit binary to 4-bit gray code and 4-bit gray to 4-bit gray code converter using dual control dual semiconductor optical amplifier terahertz optical asymmetric demultiplexer (DCDS-TOAD). We used control pulse as a Soliton pulse train. We calculate the extinction ratio, contrast ratio and Q value and found very high values. The high values of E.R., C.R. and Q value distinguishes the high (‘1’) level to the low(‘0’) very clearly also shown the variation of E.R., C.R. and Q value with control pulse energy and amplified spontaneous emission power factor. Methods: The basic equations governing the TOAD performance is simulated using MATLAB. The extinction ratio, contrast ratio and Q value are calculated for analysis of the device. Results: Results of operation for the code converters are performed at a bit rate of 100Gbps. The structure of DCDSTOAD enable us to achieve high values of ER(~ 81dB), CR(~83dB) and Q factor (86dB). A high Q factor shows very low bit error rate (BER). The eye diagram shows a large eye opening (REOP~98.5%). Conclusion: Design and analyzed 4-bit binary to 4-bit gray code and 4-bit gray to 4-bit gray code converter using dual control dual semiconductor optical amplifier terahertz optical asymmetric demultiplexer (DCDS-TOAD) is proposed and analyzed. We used control pulse as a Soliton pulse train. The proposed X-OR gate finds applications in many devices.
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Englert, Berthold-Georg, et Nasser Metwallys. « Separability of entangled q-bit pairs ». Journal of Modern Optics 47, no 12 (octobre 2000) : 2221–31. http://dx.doi.org/10.1080/09500340008235144.

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Metwally, Berthold-Georg Englert, Nasser. « Separability of entangled q-bit pairs ». Journal of Modern Optics 47, no 12 (15 octobre 2000) : 2221–31. http://dx.doi.org/10.1080/095003400420076.

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Englert, B. G., et N. Metwally. « Remarks on 2–q-bit states ». Applied Physics B 72, no 1 (janvier 2001) : 35–42. http://dx.doi.org/10.1007/s003400000502.

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Sinaga, Jhonatan Andreas. « Design of Point to Point Access Using Dense Wavelength Divison Multiplexing ». Brilliance : Research of Artificial Intelligence 2, no 2 (2 juin 2022) : 38–43. http://dx.doi.org/10.47709/brilliance.v2i2.1534.

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In this research, a point to point access is designed on an optical communication network to see the performance parameters of bit error rate and q-factor. The research was conducted using OptiSystem software version 17, with design specifications such as a wavelength of 1555 nm, a range of 100 km, a number of 40 channels, and a frequency of 100 GHz. In this study, the best BER (Bit Error Rate) value was 10-6. Meanwhile, the Q-factor value is 4.8, which means that the Q-factor value has met the standard if it is seen from the BER value obtained. There are several factors that have a major influence on the design of fiber optic networks, such as power, amplifier specifications and bandwidth values. To minimize the enlargement of the BER (Bit Error Rate) and Q-factor values ??that come out.
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Piqueira, José R. C. « Bits and q-bits as versatility measures ». Anais da Academia Brasileira de Ciências 76, no 2 (juin 2004) : 425–28. http://dx.doi.org/10.1590/s0001-37652004000200035.

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Using Shannon information theory is a common strategy to measure any kind of variability in a signal or phenomenon. Some methods were developed to adapt information entropy measures to bird song data trying to emphasize its versatility aspect. This classical approach, using the concept of bit, produces interesting results. Now, the original idea developed in this paper is to use the quantum information theory and the quantum bit (q-bit) concept in order to provide a more complete vision of the experimental results.
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Edirisooriya, Geetani. « Closed Form Aliasing Probability For Q-ary Symmetric Errors ». VLSI Design 4, no 3 (1 janvier 1996) : 199–205. http://dx.doi.org/10.1155/1996/29412.

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In Built-In Self-Test (BIST) techniques, test data reduction can be achieved using Linear Feedback Shift Registers (LFSRs). A faulty circuit may escape detection due to loss of information inherent to data compaction schemes. This is referred to as aliasing. The probability of aliasing in Multiple-Input Shift-Registers (MISRs) has been studied under various bit error models. By modeling the signature analyzer as a Markov process we show that the closed form expression derived for aliasing probability previously, for MISRs with primitive polynomials under q-ary symmetric error model holds for all MISRs irrespective of their feedback polynomials and for group cellular automata signature analyzers as well. If the erroneous behaviour of a circuit can be modelled with q-ary symmetric errors, then the test circuit complexity and propagation delay associated with the signature analyzer can be minimized by using a set of m single bit LFSRs without increasing the probability of aliasing.
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Khair, Fauza. « Perancangan Sistem Optik DWDM 8 Kanal dengan Penguat EDFA ». Journal of Telecommunication, Electronics, and Control Engineering (JTECE) 3, no 1 (17 juillet 2021) : 24–40. http://dx.doi.org/10.20895/jtece.v3i1.228.

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Penguat EDFA dibutuhkan untuk permasalahan komunikasi di Indonesia yang terbatas jarak dan waktu. EDFA merupakan penguat optik yang dibuat dengan cara mencampurkan ion erbium ke dalam serat optik. Supaya EDFA digunakan dengan efisien maka diperlukan penelitian performansi yang sesuai untuk bit rate tertentu Pada Tugas Besar kali ini, akan dilakukan pemodelan dan simulasi link DWDM menggunakan software Optisystem 17.0, kemudian akan dilakukan simulasi link DWDM dengan 2 penguat erbium doped fiber amplifier (EDFA) ditambah menggunakan Single mode Fiber dan Dispersion Compensation Fiber. EDFA dipilih karena EDFA dapat menguatkan sinyal optik tanpa mengubahnya menjadi sinyal elektrik terlebih dahulu. Pada Tugas besar ini, serat optik akan diatur panjangnya dengan panjang Dispersion Compensating Fiber tetap yaitu 10 Km. Panjang link yang digunakan yaitu 50 Km, 60 Km, 70 Km, 80 Km dan 90 Km, bitrate yang digunakan yaitu 10 Gbps, 9 Gbps, 8 Gbps dan 7 Gbps, format modulasi yang digunakan yaitu NRZ. Selanjutnya, hasil dari simulasi akan dilihat nilai dari SNR, OSNR, Q faktor dan BER masing-masing skema EDFA, sehingga didapatkan nilai yang terbaik dari kelima jarak dan variasi bit rate yang digunakan. Dari hasil analisis yang dilakukan, penguat (EDFA) memiliki korelasi terhadap kinerja sistem DWDM ini, dimana didapatkan pada skema Bit rate 7 Gbps dan 8 Gbps dengan maksimal panjang fiber 100 Km penggunaan penguat EDFA sangat berpengaruh pada kelayakan BER dan Q-Factor dan pada skema Bit Rate 9 Gbps dan 10 Gbps terdapat nilai BER dan Q-Factor yang tidak memenuhi standar kelayakan pada jarak tertentu. Keywords: DWDM, EDFA, Q Factor, BER, Bit Rate
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Thèses sur le sujet "Q-bit"

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Pimentel, Sobrinho Alvaro Caetano. « A contribuição do conceito do bit quântico(q-bit) para os fundamentos teóricos da ciência da informação ». Universidade Federal do Rio de Janeiro / Instituto Brasileiro de Informação em Ciência e Tecnologia, 2013. http://ridi.ibict.br/handle/123456789/670.

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Made available in DSpace on 2015-10-19T11:49:43Z (GMT). No. of bitstreams: 1 pimentelsobrinho2013.pdf: 2616020 bytes, checksum: abbcfacc53dbab0dc8ddca2f8ac2b67b (MD5) Previous issue date: 2013-03-27
Study about contributions of the concept of quantum bit (q-bit) and analyze the possibilities in quantum computers processing and increase the data storage capacity for devices memory. From the analysis of the q-bit is possible to notice changing in mental and social structures beyond their direct interference in the process of memory as a way of preserving information in different formats. Observations in the contributions from Quantum Mechanics, by measuring process, for Information Science and theoretical-epistemic confluence between the two sciences complemented by some opinions around the issues that still needing answer. Insertion of terms entanglement and superposition that were identified as fundamental to understanding the concept of q-bit is the basis to accept the updates in the concepts, formulations and descriptions established in Information Science
Estudo das contribuições do conceito do bit quântico (q-bit) e suas possibilidades de processamento nos computadores quânticos e de aumento da capacidade de armazenamento dos dados em dispositivos de memória. A partir da análise do q-bit, é possível a percepção das alterações de estruturas mentais e sociais, além de sua interferência direta no processo de memória como meio de preservação de informações sob diversos formatos. Observações das contribuições a Mecânica Quântica para a Ciência da Informação e a confluência teórico epistêmica entre as duas ciências, complementadas por algumas ponderações em torno das questões que ainda necessitam de respostas. Inserção dos termos emaranhamento e superposição de estados identificados como fundamentais para o entendimento do conceito de q-bit. Tais termos são a base para dimensionar as alterações em conceitos, formulações e descrições consagrados na Ciência da Informação. Palavras-chave: Bit quântico
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Healey, Joanne E. « Experiments to develop High Q and tunable superconducting coplanar resonators applicable for quantum bit technology ». Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/1077/.

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Measurements are made on superconducting Niobium on Sapphire and oxidized Silicon microwave coplanar resonators for quantum bit experiments. Device geometry and materials are investigated and quality factors in excess of a million have been observed. The resonant frequency as a function of temperature of a coplanar resonator is characterised in terms of the change in the number density of superconducting electrons. At lower temperatures, the resonant frequency no longer follows this function, and evidence is shown that this is associated with the resonant coupling of the resonant frequency with two level systems in the substrate. At T<2.2 K the resonant frequency scales logarithmically with the temperature, indicating that two level systems distributed in the volume of the Silicon Dioxide affect the electric permittivity. Applying higher input microwave power levels is shown to saturate these two level systems, essentially decoupling them from the CPR resonance. This is observed as an increase in resonant frequency and Q factor. The resonant frequency is also shown to have a high sensitivity to a magnetic field applied perpendicular to the plane of the coplanar resonator, with a quadratic dependence for the fundamental, second and third harmonics. Frequency shift of hundreds of linewidths are obtained. Coplanar resonator are fabricated and measured with current control lines built on chip, and these have shown to produce frequency shifts of tens of Kilohertz.
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Raimondo, Gianluca. « Particle mixing, two level systems and gauge theory ». Doctoral thesis, Universita degli studi di Salerno, 2012. http://hdl.handle.net/10556/1304.

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2010 - 2011
In this thesis I will discuss the theory of two level systems and the theory of the oscillating particles in quantum eld theory. In the rst chapter I will consider the time evolution of a two level system, a qubit, to show that it has inside a local in time gauge invariant evolution equation. I construct the covariant derivative operator and show that it is related to the free energy. The gauge invariance of the time evolution of the two level system is analogous to the phenomenon of birefringence.I also show that the two level systems present a Berry-like and an Anandan-Aharonov phase. Finally, I discuss entropy environment e ects and the distance in projective Hilbert space between two level states to show that the last one is properly related to the Aharonov - Anandan phase. In the second chapter I review the result obtained in QFT for particle mix- ing, analyzing the theoretical construction and the oscillation formula in the fermion case.I will emphasize the di erences between the quantum mechan- ics formulas and the QFT formulas.The unitary inequivalence between the avor and the mass eigenstates is also shown and the structure of the current for charged elds is nally discussed. I found a non - perturbative vacuum structure for the mixing particles that, among the other things, will lead to a non zero contribution to the value of the cosmological constant (chapter 3). Several links between rst and second chapter will arise from this thesis and will shed the light on the fact that it is possible to construct a generic two level quantum eld theory, that is an extension of the quantum mechanics bit theory in a quantum eld theory framework. [edited by author]
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Neto, Domingos Soares. « Filtros para a busca e extração de padrões aproximados em cadeias biológicas ». Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-19102009-002745/.

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Esta dissertação de mestrado aborda formulações computacionais e algoritmos para a busca e extração de padrões em cadeias biológicas. Em particular, o presente texto concentra-se nos dois problemas a seguir, considerando-os sob as distâncias de Hamming e Levenshtein: a) como determinar os locais nos quais um dado padrão ocorre de modo aproximado em uma cadeia fornecida; b) como extrair padrões que ocorram de modo aproximado em um número significativo de cadeias de um conjunto fornecido. O primeiro problema, para o qual já existem diversos algoritmos polinomiais, tem recebido muita atenção desde a década de 60, e ganhou novos ares com o advento da biologia computacional, nos idos dos anos 80, e com a popularização da Internet e seus mecanismos de busca: ambos os fenômenos trouxeram novos obstáculos a serem superados, em razão do grande volume de dados e das bastante justas restrições de tempo inerentes a essas aplicações. O segundo problema, de surgimento um pouco mais recente, é intrinsicamente desafiador, em razão de sua complexidade computacional, do tamanho das entradas tratadas nas aplicações mais comuns e de sua dificuldade de aproximação. Também é de chamar a atenção o seu grande potencial de aplicação. Neste trabalho são apresentadas formulações adequadas dos problemas abordados, assim como algoritmos e estruturas de dados essenciais ao seu estudo. Em especial, estudamos a extremamente versátil árvore dos sufixos, assim como uma de suas generalizações e sua estrutura irmã: o vetor dos sufixos. Grande parte do texto é dedicada aos filtros baseados em q-gramas para a busca aproximada de padrões e algumas de suas mais recentes variações. Estão cobertos os algoritmos bit-paralelos de Myers e Baeza-Yates-Gonnet para a busca de padrões; os algoritmos de Sagot para a extração de padrões; os algoritmos de filtragem de Ukkonen, Jokinen-Ukkonen, Burkhardt-Kärkkäinen, entre outros.
This thesis deals with computational formulations and algorithms for the extraction and search of patterns from biological strings. In particular, the present text focuses on the following problems, both considered under Hamming and Levenshtein distances: 1. How to find the positions where a given pattern approximatelly occurs in a given string; 2. How to extract patterns which approximatelly occurs in a certain number of strings from a given set. The first problem, for which there are many polinomial time algorithms, has been receiving a lot of attention since the 60s and entered a new era of discoveries with the advent of computational biology, in the 80s, and the widespread of the Internet and its search engines: both events brought new challenges to be faced by virtue of the large volume of data usually held by such applications and its time constraints. The second problem, much younger, is very challenging due to its computational complexity, approximation hardness and the size of the input data usually held by the most common applications. This problem is also very interesting due to its potential of application. In this work we show computational formulations, algorithms and data structures for those problems. We cover the bit-parallel algorithms of Myers, Baeza-Yates-Gonnet and the Sagots algorithms for patterns extraction. We also cover here the oustanding versatile suffix tree, its generalised version, and a similar data structure: the suffix array. A significant part of the present work focuses on q-gram based filters designed to solve the approximate pattern search problem. More precisely, we cover the filter algorithms of Ukkonen, Jokinen-Ukkonen and Burkhardt-Kärkkäinen, among others.
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Peloušek, Tomáš. « Simulace zkreslení zvukového signálu v percepčním zvukovém kodéru ». Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442567.

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This thesis deals with the issue of the creation of a programme that would simulate the distortion that appears during the process of lossy audio coding. As the environment for the creation, the MATLAB programming language has been chosen. An encoder, which changes the subjective signal quality according to customer preferences for the bitrate, has been created as a practical part of this thesis. Its function is based on a dynamic bit allocation technique and includes an optional window switching algorithm. The theoretical background for the creation of the programme consists of an explanation of the main principles of lossy coding with emphasis on MPEG1 layer 3 operating principles. The practical chapter describes how the created programme and its parts work, and it includes results of the run quality testing. The testing was conducted using the objective assessment method PEMO-Q, and consisted of comparing the objective quality of the programme’s outputs to the quality of samples on which a regular MP3 encoder with identical settings was used.
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Wang, Hanlin. « The Economic Phenomena of Net Games and of Bit Coins in China ». Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-193137.

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This paper mainly deals with a special but highly-developing industry in China, net game industry. Due to the significant construction and improvement have been happening at China since 30 years ago, and the influence of traditional culture, population boom or demographic dividend and the invasion of western technologies and cultures, net game industry, which has been only existing for less than 15 years at China, has become one of most profitable industries and changed the living of millions of people. The goal of this essay is to explore the economic performance of networks during last dozen years in China and find the drivers and reasons. By picking up the data between 2001 and 2013, sufficient data and researches will be provided for the study for the network games in China.
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Lundin, Carl. « Rapid transit and property values ». Thesis, KTH, Fastigheter och byggande, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146890.

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I denna uppsats görs en fördjupning utbyggnaden av Stockholms tunnelbana till Nacka kommun. Syftet med uppsatsen har varit att undersöka huruvida det uppstår förändringar i fastigheters värde i nära och direkt anslutning till ny- eller utbyggd tunnelbana. Teorikapitlet behandlar olika teorier som beskriver varför vissa typer av fastigheter och verksamheter uppstår på vissa ställen. Teorin tar sats ur von Thünens sätt att förklara markanvändning. Uppsatsen går igenom hur betalningsviljan för mark dels skiljer sig mellan olika verksamheter och dels hur den avtar med avståndet från Central Business District (CBD). Kontor och handel har relativt sett högre betalningsvilja för fastigheter nära CBD än bostäder och bostäder har högre betalningsvilja än industrier. Med ökad tillgänglighet tack vare tunnelbana så uppstår fler unika områden (lokala CBD:s) där kontor och handel har större vilja att etablera sig. Tack vare ökad tillgänglighet och därmed ökat marknadsvärde så kan vi enligt Tobin’s Q förvänta oss ökad exploatering. Vidare analyseras 15 akademiska artiklar på ämnet. De artiklar som legat till grund för att bedöma värdeförändringen har studerat rapid transit system och genomfört analyser på försäljningsdata. Den genomsnittliga ökningen visar på att värdena för fastigheter går upp med 9,6 %. Artiklarna ger också en relevant input om eventuella yttre negativa omständigheter (som dock inte överstiger nyttorna) som uppstår med tunnelbana, till exempel ökad kriminalitet. Deltagarna i enkätundersökningen förväntar sig att alla typer av fastigheter värdemässigt kommer påverkas positivt inom en radie av 1 kilometer. De anser att det till en viss grad finns en marknad för privat medfinansiering samt att medelklassområden är de områden med högst betalningsvilja för tunnelbana.
This thesis delves deeply into the expansion of the Stockholm subway to Nacka municipality. The purpose has been to investigate whether there is a change in the valuation of properties in close proximity to new or expanded subway. The theory chapter covers different theories on land use and bid rent curves. The theories are based on von Thünen’s way of describing land use. The thesis goes through how the willingness to pay for land on one hand differs between different property types and on another hand decreases with distance to Central Business District (CBD). Offices and retail have a relatively higher willingness to pay for land in the proximity of CBD than residential and residential have a higher willingness to pay than industrial. With increased availability thanks to subway come numerous unique areas (local CBD’s) where office and retail have a higher willingness to establish. The increased availability also heightens the Tobin’s Q, which means we can expect a higher degree of exploitation. 15 academic papers that cover the issue are analyzed. The articles which are the basis for the reasoning on value change have studied rapid transit systems and conducted analysis on sales data. The average increase in property value of 9,6 %. The articles also gives good input on negative externalities (which however never exceeds the benefits), for example increased criminality. The participants in the survey are expecting that all types of properties will increase in value within a radius of 1 kilometer from the stations. They consider that there is a potential market for private co-financing and that middle-class areas are the ones with highest willingness to pay for subway.
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Amsanpally, Abhilash. « Linear properties of inhibited coupling hollow-core photonic crystal fibers ». Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0028/document.

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Cette thèse a porté sur les principes de guidage, les propriétés linéaires et les outils de conception autour des fibres à cristal photonique à coeur creux (HC-PCF) à couplage inhibé (IC). Le guidage IC a été démontré comme une manifestation photonique de Q-BiC (état quasi lié dans un continuum) en étudiant des profils asymétriques et dépendants en polarisation dit Fano présentant une bande passante spectrale de 30 GHz. En utilisant le concept de IC, nous reportons la caractérisation linéaire de fibres IC HC-PCF supérieures à l’état de l’art. Par une optimisation de la forme du coeur, une fibre Kagome IC HC-PCF a démontré des pertes très faibles de 8,5 dB/km à 1030 nm associées à une bande passante à 3 dB de 225 nm. Une autre conception avec des entretoises de silice amincies à 300 nm a permis d’atteindre des pertes de 30 dB/km à 780 nm avec une bande de transmission fondamentale record décalée à 670 nm et capable de couvrir toutes les gammes spectrales du Ti:Sa, Yb et Er. Nous avons également travaillé sur la conception et la fabrication de IC HC-PCF présentant une gaine dont la structure est un réseau unique de tubes fins isolés. Une de ces fibres a permis de démontrer une transmission jusqu'à 220 nm avec des pertes records de 7,7 dB/km à ~ 750 nm, tandis qu’une seconde réalisation s’est traduit par une bande fondamentale de plus d’une octave allant de 600 à 1200 nm avec des pertes de 10-20 dB/km. Finalement, cette dernière fibre a été étudiée plus en détail pour déterminer les sources à l’origine des pertes due à la rugosité de surface présente à l’interface du contour du coeur
This thesis reported on guiding principles, linear properties and conceptual design tools of inhibited coupling (IC) guiding hollow-core photonic crystal fibers (HC-PCF). IC guidance was proved as photonic manifestation of Q-BiC (quasi bound-state-in-a-continuum) by investigating asymmetric and polarization dependent Fano profiles with bandwidth of 30 GHz in high resolution transmission spectra. By using IC design concept, we reported on linear characterization of state-of-the-art IC HC-PCFs. Based on core shaping optimization, a Kagome IC HC-PCF demonstrated ultra-low loss down to 8.5 km/km at 1030 nm associated with a 225 nm wide 3-dB bandwidth. Another Kagome design with thinner silica struts of 300 nm exhibited lowest loss of 30 dB/km at 780 nm along with record level fundamental bandwidth spreading down to 670 nm and able to cover the entire Ti:Sa, Yb and Er laser spectral ranges. We also reported on design and fabrication of single-ring tubular lattice IC HC-PCFs. One of these fibers demonstrated transmission down to 220 nm with a record transmission loss of 7.7 dB/km at ~750 nm, while the second one exhibited ultra-broad fundamental band with loss range of 10-20 dB/km over one octave spanning from 600 to 1200 nm. Finally, the second tubular fiber was further investigated for fundamental loss sources due to surface roughness around its core-contour
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Fluckinger, Chris D. « Measurement of Big Five Personality via Q-Sort : Comparison with a Likert Measure and Test-Taker Perceptions and Reactions ». University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1279038683.

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Albuquerque, Rosângela Marques de. « Obtenção de portas lógicas quânticas em condensados de bose-einstein ». reponame:Repositório Institucional da UFC, 2017. http://www.repositorio.ufc.br/handle/riufc/27051.

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ALBUQUERQUE, R. M. Obtenção de portas lógicas quânticas em condensados de bose - Einstein. 2017. 77 f. Dissertação (Mestrado em Engenharia Elétrica e da Computação) - Campus de Sobral, Universidade Federal do Ceará, Sobral, 2017.
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Bose-Einstein condensate (BEC) coupled is a promising candidate to quantum computing. Being a macroscopic quantum phenomenon, Being a strong quantum system (BÖIH et al., 2009), its assembly and experimental control inside an atomic chip (HÄNSEL et al.,2001), further the optical networks (GREINER OLAF MANDEL, 2001), where it is found and manipulated in different network sites, assuring implementation conditions of Quantum Information Protocol. The definition of a Qubit in BECs was proposed considering the couple of two BEC’s in different hyperfine states throught a two-photon transition. We have identified each one of the condensates in their respective hyperfine levels like the states and the Qubit. Experimentally, it is possible both the identification of atoms that ate in each one of the hyperfine levels and the measurement of the condensate phase. With these information is possible to determine the superposition coefficients . In this coursework, we have studied the dynamics of two Bose-Einstein condensate (BEC) on its fundamental state, trapped and coupled by a quantum tunneling. Because of this coupling, there is population transference between two condensed modes. The coupling is adjusted in a way we have probability of occupation in two levels. We have shown that this system can be considerate viable to a Qubit. So, we have simulated the quantum gates NOT and Hadamard.
Condensados de Bose-Einstein (CBE) acoplados é candidato promissor à computação quântica. Por ser um fenômeno quântico macroscópico, por ser um sistema quântico robusto (BÖHI et al., 2009), por sua montagem e controle experimental dentro de um chip atômico (HÄNSEL et al., 2001), além das construções em redes ópticas (GREINER OLAF MANDEL, 2001), onde são localizados e manipulados em diferentes sítios da rede, garantindo condições de implementação de protocolos de Informação Quântica. A definição de um q-bit em CBEs foi proposta considerando o acoplamento de dois CBEs em diferentes estados hiperfinos através de uma transição de dois fótons. Identificamos cada um dos condensados nos seus respectivos níveis hiperfinos como os estados j0i e j1i do q-bit. Experimentalmente, é possível tanto a identificação dos átomos que estão em cada um dos níveis hiperfinos quanto a medição da fase dos condensados. Com estas informações é possível determinar os coeficientes de superposição a j0i+b j1i. No presente trabalho, estudamos a dinâmica de dois condensados de Bose - Eisntein (CBE) no estado fundamental, armadilhados e acoplados por tunelamento quântico. Devido a esse acoplamento, há transferência de população entre os dois modos condensados. O acoplamento é ajustado de maneira que tenhamos probabilidade de ocupação em dois níveis. Demonstramos que este sistema pode ser considerado viável a um q-bit. Então, simulamos as portas quânticas NOT e Hadamard.
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Livres sur le sujet "Q-bit"

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Limited, Hitachi. Hitachi 8-bit microcomputer technical Q & A HD641180X, HD643180X, HD647180X application note. Tokyo : Hitachi Ltd, 1991.

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Liu, Qizhang, et Mark Goh. TA-Q-BIN. Singapore : Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-673-7.

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The big Q. London : Review, 2001.

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Sawant, Nitin, et Himanshu Shah. Big Data Application Architecture Q & ; A. Berkeley, CA : Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0.

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Jamshīd, Jaʻfarʹpūr, dir. Ṭalāq bih darkhvāst-i zan (mavād-i 1029, 1129, 1130 Q. M.), bih darkhvāst-i shawhar (mādah-i 1133 Q. M.). [Tihrān] : Safīr-i Ṣubḥ, 2001.

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AABB, dir. Romancing the big Q : Dancing with the quality gorilla. Bethesda, Md : AABB Press, 2012.

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The big book of New Testament Q and Answers. St. Louis : Concordia Publishing House, 2015.

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Walters, Lisa M. Romancing the big Q : Dancing with the quality gorilla. Sous la direction de AABB. Bethesda, Md : AABB Press, 2012.

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Rūs, Sayyāḥ-i. Guzārish-i Īrān : Bih sāl-i 1305 q. / 1887 m. Tihrān : Kitābkhānah-ʾi Ṭahūrī, 1985.

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International Telegraph and Telephone Consultative Committee. Plenary Assembly. Red book. : Interface with the Maritime Mobile Service and the Land Mobile Service : recommendations Q.1-Q.118 bis. Geneva : International Telecommunication Union, 1985.

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Chapitres de livres sur le sujet "Q-bit"

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Yang, Peng, Lijun Liu, Hongbo Fan et Qingsong Huang. « Fast Multi-Pattern String Matching Algorithms Based on Q-Grams Bit-Parallelism Filter and Hash ». Dans Lecture Notes in Electrical Engineering, 487–95. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-34522-7_52.

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Wen-long, Wei, Li Bin, Zou Yi et Zhuang Zhen-quan. « Multi-objective Q-bit Coding Genetic Algorithm for Hardware-Software Co-synthesis of Embedded Systems ». Dans Lecture Notes in Computer Science, 865–72. Berlin, Heidelberg : Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11903697_109.

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Pamula, Vinay Kumar, Srinivasa Rao Vempati et Anil Kumar Tipparti. « Bit Error Probability of M-Ary PSK with MRC Diversity Reception over Nakagami-m Fading Channel Using Simple Bounds on Gaussian Q -Function ». Dans Lecture Notes in Electrical Engineering, 279–86. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-25905-0_37.

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Sarkar, Swarup, et Rupsa Roy. « Design and Implementation of Advanced Re-Configurable Quantum-Dot Cellular Automata-Based (Q-DCA) n-Bit Barrel-Shifter Using Multilayer 8:1 MUX with Reversibility ». Dans Proceedings of the International Conference on Paradigms of Computing, Communication and Data Sciences, 35–51. Singapore : Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8742-7_4.

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Liu, Qizhang, Mark Goh et Motoka Mouri. « Delivering B2B with TA-Q-BIN ». Dans Management for Professionals, 127–48. Singapore : Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-673-7_8.

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Hwarng, Brian, et Motoka Mouri. « TA-Q-BIN, The Last-Mile Delivery ». Dans Management for Professionals, 23–44. Singapore : Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-673-7_3.

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Sawant, Nitin, et Himanshu Shah. « Big Data Introduction ». Dans Big Data Application Architecture Q & ; A, 1–8. Berkeley, CA : Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0_1.

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Sawant, Nitin, et Himanshu Shah. « Big Data Case Studies ». Dans Big Data Application Architecture Q & ; A, 113–26. Berkeley, CA : Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0_10.

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Sawant, Nitin, et Himanshu Shah. « Resources, References, and Tools ». Dans Big Data Application Architecture Q & ; A, 127–36. Berkeley, CA : Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0_11.

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Sawant, Nitin, et Himanshu Shah. « References and Bibliography ». Dans Big Data Application Architecture Q & ; A, 137–38. Berkeley, CA : Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0_12.

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Actes de conférences sur le sujet "Q-bit"

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Cohen, Rami, et Yuval Cassuto. « LDPC codes for the q-ary bit-measurement channel ». Dans 2016 9th International Symposium on Turbo Codes and Iterative Information Processing (ISTC). IEEE, 2016. http://dx.doi.org/10.1109/istc.2016.7593117.

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Ronczka, John. « Backchanneling Quantum Bit (Qubit) 'Shuffling' : Quantum Bit (Qubit) 'Shuffling' as Added Security by Slipstreaming Q-Morse ». Dans 2016 3rd Asia-Pacific World Congress on Computer Science and Engineering (APWC on CSE). IEEE, 2016. http://dx.doi.org/10.1109/apwc-on-cse.2016.028.

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Cho, Yongjin, Jiaying Liu, Do-Kyoung Kwon et C. C. Jay Kuo. « Joint quality-temporal (Q-T) bit allocation for H.264/SVC ». Dans 2009 IEEE International Symposium on Circuits and Systems - ISCAS 2009. IEEE, 2009. http://dx.doi.org/10.1109/iscas.2009.5118274.

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Cohen, Rami, et Yuval Cassuto. « Finite-length LDPC codes on the q-ary multi-bit channel ». Dans 2017 IEEE International Symposium on Information Theory (ISIT). IEEE, 2017. http://dx.doi.org/10.1109/isit.2017.8006721.

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Sutisna, Nana, Andi M. R. Ilmy, Handi Nugroho Setiawan, Infall Syafalni, Rahmat Mulyawan, Nur Ahmadi et Trio Adiono. « Reinforcement Learning Accelerator using Q-Learning Algorithm with Optimized Bit Precision ». Dans 2022 8th International Conference on Wireless and Telematics (ICWT). IEEE, 2022. http://dx.doi.org/10.1109/icwt55831.2022.9935371.

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Sato, Taisuke, et Ryosuke Kojima. « Boolean Network Learning in Vector Spaces for Genome-wide Network Analysis ». Dans 18th International Conference on Principles of Knowledge Representation and Reasoning {KR-2021}. California : International Joint Conferences on Artificial Intelligence Organization, 2021. http://dx.doi.org/10.24963/kr.2021/53.

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Boolean networks (BNs) are one of the standard tools for modeling gene regulatory networks in biology but their learning has been limited to small networks due to computational difficulty. Aiming at unprecedented scalability, we focus on a subclass of BNs called AND/OR Boolean networks where Boolean formulas are restricted to a conjunction or a disjunction of literals. We represent an AND/OR BN with N nodes by an N x 2N binary matrix Q paired with an N dimensional integer vector theta called a threshold vector, a state of the BN by an N dimensional binary state vector s and a state transition by matrix operations on Q, theta and s. Given a list of state transitions S = s_0...s_L, we learn Q and theta in a continuous space by minimizing a cost function J(Q*,theta,S) w.r.t. a real number matrix Q* and theta while thresholding Q* into a binary matrix Q using theta so that Q represents an AND/OR BN realizing the target state transitions S. We conducted experiments with artificial and real data sets to check scalability and accuracy of our learning algorithm. First we randomly generated AND/OR BNs up to N=5,000 nodes and empirically confirmed O(N^2) learning time behavior using them. We also observed 99.8% bit-by-bit prediction accuracy (prediction accuracy = 1 - test error) with state transition data generated by AND/OR BNs. For real data, we learned genome-wide AND/OR BNs with 10,928 nodes for budding yeast from transcription profiling data sets, each containing 10,928 mRNAs and 40 transitions and achieved for instance 84.3% prediction accuracy and successfully extracted more than 6,000 small AND/ORs whose average prediction accuracy reaches much higher 94.9%.
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Alavi, Morteza S., George Voicu, Robert B. Staszewski, Leo C. N. de Vreede et John R. Long. « A 2×13-bit all-digital I/Q RF-DAC in 65-nm CMOS ». Dans 2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). IEEE, 2013. http://dx.doi.org/10.1109/rfic.2013.6569551.

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Singh, Tejinder, et Raafat R. Mansour. « Miniaturized 6-Bit Phase-Change Capacitor Bank with Improved Self-Resonance Frequency and $Q$ ». Dans 2022 52nd European Microwave Conference (EuMC). IEEE, 2022. http://dx.doi.org/10.23919/eumc54642.2022.9924313.

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Mao, Deng, Md Samiul Alam, Mahdi Parvizi, Eslam El-Fiky, Ahmad Abdo, Naim Ben-Hamida et David V. Plant. « Compact Silicon Photonics Meandered Mach-Zehnder Modulator ». Dans CLEO : Science and Innovations. Washington, D.C. : Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_si.2022.sf4m.3.

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We report a C-band compact (100 × 420 µm2) and power efficient (0.9 pJ/bit) SiP meandered Mach-Zehnder modulator with low optical loss (2.09 dB) and demonstrate DAC-less and DSP-free 32 Gbps OOK transmission with Q=6.64 dB.
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Varghese, Anoop, Bikash K. Behera, Sriram Prasath E. et Prasanta K. Panigrahi. « One way quantum bit commitment using classical correlation and its implementation in IBM Q experience ». Dans Frontiers in Optics. Washington, D.C. : OSA, 2020. http://dx.doi.org/10.1364/fio.2020.jtu1b.45.

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Rapports d'organisations sur le sujet "Q-bit"

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Sarabandi, Kamal, Sang-June Park, Mohammed A. El-Tanani, Isak Reines et Gabriel M. Rebeiz. Low-Loss 4-6 GHz Tunable Filter with 3-Bit High-Q Orthogonal RF-MEMS Capacitance Network. Fort Belvoir, VA : Defense Technical Information Center, mars 2008. http://dx.doi.org/10.21236/ada481018.

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Martínez Álvarez, Silvia, et Ana Lorena De Varela. Aprendamos todos a leer : Fascículo 20 : Toda la familia lee y escribe conmigo. Inter-American Development Bank, novembre 2020. http://dx.doi.org/10.18235/0002991.

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"Aprendamos todos a leer" es la iniciativa para la enseñanza de lectura y escritura inicial del BID, donde a través de materiales para el alumno, el maestro y el aula de clase, pretende brindar herramientas para apoyar el proceso de alfabetización inicial. El programa se organiza a partir de una cartelera fonológica presentando para cada fonema (sonido de letra) un personaje caracterizado por un animal. En respuesta al COVID-19, se desarrollaron fascículos para apoyar el trabajo en casa. Este fascículo contiene orientaciones para enseñar el sonido y escritura de la letra Q-q y su combinación con las vocales, especialmente la A-a, E-e, I-i, O-o y U-u y las consonantes M-m, N-n, L-l, S-s, F-f, T-t, B-b, D-d y C-c.
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