Relevant bibliographies by topics / Quantum embedding

Academic literature on the topic 'Quantum embedding'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Quantum embedding"

1

ASSELMEYER-MALUGA, TORSTEN, and JERZY KRÓL. "QUANTUM GEOMETRY AND WILD EMBEDDINGS AS QUANTUM STATES." International Journal of Geometric Methods in Modern Physics 10, no. 10 (October 8, 2013): 1350055. http://dx.doi.org/10.1142/s0219887813500552.

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In this paper, we discuss wild embeddings like Alexanders horned ball and relate them to fractal spaces. We build a C*-algebra corresponding to a wild embedding. We argue that a wild embedding is the result of a quantization process applied to a tame embedding. Therefore, quantum states are directly the wild embeddings. Then we give an example of a wild embedding in the four-dimensional spacetime. We discuss the consequences for cosmology.
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Sun, Qiming, and Garnet Kin-Lic Chan. "Quantum Embedding Theories." Accounts of Chemical Research 49, no. 12 (November 7, 2016): 2705–12. http://dx.doi.org/10.1021/acs.accounts.6b00356.

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Abbott, Alastair A., Cristian S. Calude, Michael J. Dinneen, and Richard Hua. "A hybrid quantum-classical paradigm to mitigate embedding costs in quantum annealing." International Journal of Quantum Information 17, no. 05 (August 2019): 1950042. http://dx.doi.org/10.1142/s0219749919500424.

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Despite rapid recent progress towards the development of quantum computers capable of providing computational advantages over classical computers, it seems likely that such computers will, initially at least, be required to run in a hybrid quantum-classical regime. This realization has led to interest in hybrid quantum-classical algorithms allowing, for example, quantum computers to solve large problems despite having very limited numbers of qubits. Here we propose a hybrid paradigm for quantum annealers with the goal of mitigating a different limitation of such devices: the need to embed problem instances within the (often highly restricted) connectivity graph of the annealer. This embedding process can be costly to perform and may destroy any computational speedup. In order to solve many practical problems, it is moreover necessary to perform many, often related, such embeddings. We will show how, for such problems, a raw speedup that is negated by the embedding time can nonetheless be exploited to give a real speedup. As a proof-of-concept example we present an in-depth case study of a simple problem based on the maximum-weight independent set problem. Although we do not observe a quantum speedup experimentally, the advantage of the hybrid approach is robustly verified, showing how a potential quantum speedup may be exploited and encouraging further efforts to apply the approach to problems of more practical interest.
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Knizia, Gerald, and Garnet Kin-Lic Chan. "Density Matrix Embedding: A Strong-Coupling Quantum Embedding Theory." Journal of Chemical Theory and Computation 9, no. 3 (February 21, 2013): 1428–32. http://dx.doi.org/10.1021/ct301044e.

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Emms, D., R. Wilson, and E. Hancock. "Graph embedding using quantum hitting time." Quantum Information and Computation 9, no. 3&4 (March 2009): 231–54. http://dx.doi.org/10.26421/qic9.3-4-4.

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In this paper, we explore analytically and experimentally a quasi-quantum analogue of the hitting time of the continuous-time quantum walk on a graph. For the classical random walk, the hitting time has been shown to be robust to errors in edge weight structure and to lead to spectral clustering algorithms with improved performance. Our analysis shows that the quasi-quantum analogue of the hitting time of the continuous-time quantum walk can be determined via integrals of the Laplacian spectrum, calculated using Gauss-Laguerre quadrature. We analyse the quantum hitting times with reference to their classical counterpart. Specifically, we explore the graph embeddings that preserve hitting time. Experimentally, we show that the quantum hitting times can be used to emphasise cluster-structure.
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FROHMAN, CHARLES, and JOANNA KANIA-BARTOSZYŃSKA. "A quantum obstruction to embedding." Mathematical Proceedings of the Cambridge Philosophical Society 131, no. 2 (September 2001): 279–93. http://dx.doi.org/10.1017/s0305004101005230.

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Li, Panchi, and Xiande Liu. "A novel quantum steganography scheme for color images." International Journal of Quantum Information 16, no. 02 (March 2018): 1850020. http://dx.doi.org/10.1142/s021974991850020x.

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In quantum image steganography, embedding capacity and security are two important issues. This paper presents a novel quantum steganography scheme using color images as cover images. First, the secret information is divided into 3-bit segments, and then each 3-bit segment is embedded into the LSB of one color pixel in the cover image according to its own value and using Gray code mapping rules. Extraction is the inverse of embedding. We designed the quantum circuits that implement the embedding and extracting process. The simulation results on a classical computer show that the proposed scheme outperforms several other existing schemes in terms of embedding capacity and security.
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Huang, Chen, Michele Pavone, and Emily A. Carter. "Quantum mechanical embedding theory based on a unique embedding potential." Journal of Chemical Physics 134, no. 15 (April 21, 2011): 154110. http://dx.doi.org/10.1063/1.3577516.

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MÜGER, MICHAEL, and LARS TUSET. "MONOIDS, EMBEDDING FUNCTORS AND QUANTUM GROUPS." International Journal of Mathematics 19, no. 01 (January 2008): 93–123. http://dx.doi.org/10.1142/s0129167x08004558.

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We show that the left regular representation πl of a discrete quantum group (A, Δ) has the absorbing property and forms a monoid [Formula: see text] in the representation category Rep (A, Δ). Next we show that an absorbing monoid in an abstract tensor *-category [Formula: see text] gives rise to an embedding functor (or fiber functor) [Formula: see text], and we identify conditions on the monoid, satisfied by [Formula: see text], implying that E is *-preserving. As is well-known, from an embedding functor [Formula: see text] the generalized Tannaka theorem produces a discrete quantum group (A, Δ) such that [Formula: see text]. Thus, for a C*-tensor category [Formula: see text] with conjugates and irreducible unit the following are equivalent: (1) [Formula: see text] is equivalent to the representation category of a discrete quantum group (A, Δ), (2) [Formula: see text] admits an absorbing monoid, (3) there exists a *-preserving embedding functor [Formula: see text].
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10

Liu, Hanqing, and Shailesh Chandrasekharan. "Qubit Regularization and Qubit Embedding Algebras." Symmetry 14, no. 2 (February 2, 2022): 305. http://dx.doi.org/10.3390/sym14020305.

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Qubit regularization is a procedure to regularize the infinite dimensional local Hilbert space of bosonic fields to a finite dimensional one, which is a crucial step when trying to simulate lattice quantum field theories on a quantum computer. When the qubit-regularized lattice quantum fields preserve important symmetries of the original theory, qubit regularization naturally enforces certain algebraic structures on these quantum fields. We introduce the concept of qubit embedding algebras (QEAs) to characterize this algebraic structure associated with a qubit regularization scheme. We show a systematic procedure to derive QEAs for the O(N) lattice spin models and the SU(N) lattice gauge theories. While some of the QEAs we find were discovered earlier in the context of the D-theory approach, our method shows that QEAs are far richer. A more complete understanding of the QEAs could be helpful in recovering the fixed points of the desired quantum field theories.
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Dissertations / Theses on the topic "Quantum embedding"

1

Stella, Martina. "Quantum embedding for molecular systems : a projection-operator approach." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.691179.

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Density functional theory (DFT) is widely used to describe the electronic structure of molecular systems and, thanks to the simplicity of its theoretical framework, it is particularly suitable for the development quantum embedding schemes. In this dissertation a novel embedding scheme, based on the employment of a projection operator, is presented. This method allows one to embed one sub-region of a given molecular system in its environment and treat these regions at different level of theory (e.g. CCSD(T)in- DFT). Thanks to the use of a projection technique that enforces the Pauli principle between subsystems, the complications associated with the appearance of non-additive kinetic energy contributions are overcome. First, I show a general software implementation of the method and the features that allow the analysis of a variety of chemical problems (e.g. organic reactions, transition metal complexes). Next, I apply the method to a wide range of benchmarking examples chosen to assess accuracy and performance. Namely, the SN2 reaction of I-propylchloride with CI- , phenol molecule deprotonation reaction, association of' iron(II) to ethylamine, Diels-Alder cycloaddition, and Stone' Vales rotation reaction are investigated. I show that , for such examples, this framework is able to reproduce the accuracy of highly correlated wave-function (WF) methods with reduced computational cost, by performing WF-in-DFT calculations. In addition, by exploring several simulation conditions, e.g. different functionals, localisation schemes, basis sets, I demonstrate the performance of the method displays a fairly independent behaviour with respect to simulation conditions. Finally, once the robustness of the code has been tested, I extend applications to more realistic chemical systems of technological and experimental interest, i.e. adsorption of cobalt on coronene. A further improvement of the method is also described. I assess a new version of the code that enables further reduction of the computational cost and the possibility of enlarging the size of the systems studied by performing an intelligent truncation of the atomic basis set used in the WF-based calculation.
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2

Adam, Marcus. "Embedding of QDs into Ionic Crystals:." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-191160.

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Colloidal semiconductor quantum dots (QDs) have gained substantial interest as adjustable, bright and spectrally tunable fluorophores in the past decades. Besides their in-depth analyses in the scientific community, first industrial applications as color conversion and color enrichment materials were implemented. However, stability and processability are essential for their successful use in these and further applications. Methods to embed QDs into oxides or polymers can only partially solve this challenge. Recently, our group introduced the embedding of QDs into ionic salts, which holds several advantages in comparison to polymer or oxide-based counterparts. Both gas permeability and environmental-related degradation processes are negligible, making these composites an almost perfect choice of material. To evaluate this new class of QD-salt mixed crystals, a thorough understanding of the formation procedure and the final composites is needed. The present work is focused on embedding both aqueous-based and oil-based metal-chalcogenide QDs into several ionic salts and the investigations of their optical and chemical properties upon incorporation into the mixed crystals. QDs with well-known, reproducible and high-quality synthetic protocols are chosen as emissive species. CdTe QDs were incorporated into NaCl as host matrix by using the straightforward "classical" method. The resulting mixed crystals of various shapes and beautiful colors preserve the strong luminescence of the incorporated QDs. Besides NaCl, also borax and other salts are used as host matrices. Mercaptopropionic acid stabilized CdTe QDs can easily be co-crystallized with NaCl, while thioglycolic acid as stabilizing agent results in only weakly emitting powder-like mixed crystals. This challenge was overcome by adjusting the pH, the amount of free stabilizer and the type of salt used, demonstrating the reproducible incorporation of highest-quality CdTe QDs capped with thioglycolic acid into NaCl and KCl salt crystals. A disadvantage of the "classical" mixed crystallization procedure was its long duration which prevents a straightforward transfer of the protocol to less stable QD colloids, e.g., initially oil-based, ligand exchanged QDs. To address this challenge, the "Liquid-liquid-diffusion-assisted-crystallization" (LLDC) method is introduced. By applying the LLDC, a substantially accelerated ionic crystallization of the QDs is shown, reducing the crystallization time needed by one order of magnitude. This fast process opens the field of incorporating ligand-exchanged Cd-free QDs into NaCl matrices. To overcome the need for a ligand exchange, the LLDC can also be extended towards a two-step approach. In this modified version, the seed-mediated LLDC provides for the first time the ability to incorporate oil-based QDs directly into ionic matrices without a prior phase transfer. The ionic salts appear to be very tight matrices, ensuring the protection of the QDs from the environment. As one of the main results, these matrices provide extraordinary high photo- and chemical stability. It is further demonstrated with absolute measurements of photoluminescence quantum yields (PL-QYs), that the PL-QYs of aqueous CdTe QDs can be considerably increased upon incorporation into a salt matrix by applying the "classical" crystallization procedure. The achievable PL enhancement factors depend strongly on the PL-QYs of the parent QDs and can be described by the change of the dielectric surrounding as well as the passivation of the QD surface. Studies on CdSe/ZnS in NaCl and CdTe in borax showed a crystal-induced PL-QY increase below the values expected for the respective change of the refractive index, supporting the derived hypothesis of surface defect curing by a CdClx formation as one main factor for PL-QY enhancement. The mixed crystals developed in this work show a high suitability as color conversion materials regarding both their stability and spectral tunability. First proof-of-concept devices provide promising results. However, a combination of the highest figures of merit at the same time is intended. This ambitious goal is reached by implementing a model-experimental feedback approach which ensures the desired high optical performance of the used emitters throughout all intermediate steps. Based on the approach, a white LED combining an incandescent-like warm white with an exceptional high color rendering index and a luminous efficacy of radiation is prepared. It is the first time that a combination of this highly related figures of merit could be reached using QD-based color converters. Furthermore, the idea of embedding QDs into ionic matrices gained considerable interest in the scientific community, resulting in various publications of other research groups based on the results presented here. In summary, the present work provides a profound understanding how this new class of QD-salt mixed crystal composites can be efficiently prepared. Applying the different crystallization methods and by changing the matrix material, mixed crystals emitting from blue to the near infrared region of the electromagnetic spectrum can be fabricated using both Cd-containing and Cd-free QDs. The resulting composites show extraordinary optical properties, combining the QDs spectral tunability with the rigid and tight ionic matrix of the salt. Finally, their utilization as a color conversion material resulted in a high-quality white LED that, for the first time, combines an incandescent-like hue with outstanding optical efficacy and color rendering properties. Besides that, the mixed crystals offer huge potential in other high-quality applications which apply photonic and optoelectronic components.
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3

Scholz, Volkher Bernhard [Verfasser]. "Finite-dimensional approximations of quantum systems and Connes' embedding conjecture / Volkher Bernhard Scholz." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2012. http://d-nb.info/1025794907/34.

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4

Stottmeister, Alexander [Verfasser], and Thomas [Akademischer Betreuer] Thiemann. "On the Embedding of Quantum Field Theory on Curved Spacetimes into Loop Quantum Gravity / Alexander Stottmeister. Gutachter: Thomas Thiemann." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2015. http://d-nb.info/1076166393/34.

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Klos, Fabian [Verfasser], and Daniel [Akademischer Betreuer] Roggenkamp. "Embedding topological quantum field theories functorially in the UV / Fabian Klos ; Betreuer: Daniel Roggenkamp." Heidelberg : Universitätsbibliothek Heidelberg, 2021. http://nbn-resolving.de/urn:nbn:de:bsz:16-heidok-302659.

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Mordovina, Uliana [Verfasser], and Angel [Akademischer Betreuer] Rubio. "Novel Approaches in Quantum Chemistry : Self-Consistent Density-Functional Embedding and Polaritonic Coupled-Cluster Theory / Uliana Mordovina ; Betreuer: Angel Rubio." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2020. http://d-nb.info/1210647176/34.

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Baronnier, Justine. "Encapsulation de nanocristaux II-VI dans une matrice semiconductrice de pérovskite hybride d’halogénure de plomb en vue de la création d’un dispositif de contrôle du clignotement." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1297.

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Dans le but de concevoir un dispositif de contrôle du clignotement des nanocristaux, il était nécessaire de créer un composite à l'état solide pouvant s'intégrer dans ce dispositif. Nous avons donc encapsulé des boites quantiques (BQs) à base de cadmium dans une matrice cristalline de pérovskite hybride de bromure de plomb. Ce manuscrit retrace l'ensemble des étapes qui ont été validé pour atteindre la création de ce nouveau composite. Nous avons développé avec succès une synthèse de BQs résistantes à l'encapsulation dans une matrice ionique mais également un échange de ligands inorganiques qui nous a permis d'intégrer de manière efficace les nanocristaux au sein de leur matrice en conservant leurs propriétés de luminescence. Après encapsulation, nous avons pu mettre en avant des preuves montrant une encapsulation efficace et un couplage entre les BQs et la matrice. Ces deux critères sont favorables à l'utilisation de ce composite dans le dispositif de contrôle. Ce dispositif consiste in fine à suivre optiquement la luminescence des BQs et à appliquer un champ électrique pour extraire et évacuer les charges en excès, qui sont à l'origine de l'état non émissif. Le développement de cette partie nous permettra dans le futur d'étudier le phénomène de clignotement mais surtout d'obtenir une source de photons uniques stable et à la demande
To construct a device for controlling the blinking of nanocrystals, it was necessary to create a solid-state active material that can be integrated in such an apparatus. To this end, we have encapsulated cadmium-based quantum dots (QDs) in a crystalline matrix of a hybrid lead-bromide perovskite. This manuscript describes all the steps that have been undertaken to achieve the creation of this new composite. We have developed a synthesis of QDs that are resistant to encapsulation in an ionic matrix by means of an organic-inorganic ligand exchange that allowed us to integrate nanocrystals into the matrix while conserving their luminescence properties. We were thus able to document efficient encapsulation and a coupling between the QDs and the matrix. These two characteristics are favorable for using this composite in a control device which ultimately aims at optically following the luminescence of the BQs and applying an electric field to extract and evacuate the excess charges responsible for the nonemissive state. The successful completion of this step will enable us in the future to study the phenomenon of blinking and, more importantly, to construct a stable on-demand single-photon source
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8

Weerasekara, Aruna Bandara. "Electrical and Optical Characterization of Group III-V Heterostructures with Emphasis on Terahertz Devices." Digital Archive @ GSU, 2007. http://digitalarchive.gsu.edu/phy_astr_diss/16.

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Electrical and optical characterizations of heterostructures and thin films based on group III-V compound semiconductors are presented. Optical properties of GaMnN thin films grown by Metalorganic Chemical Vapor Deposition (MOCVD) on GaN/Sapphire templates were investigated using IR reflection spectroscopy. Experimental reflection spectra were fitted using a non - linear fitting algorithm, and the high frequency dielectric constant (ε∞), optical phonon frequencies of E1(TO) and E1(LO), and their oscillator strengths (S) and broadening constants (Γ) were obtained for GaMnN thin films with different Mn fraction. The high frequency dielectric constant (ε∞) of InN thin films grown by the high pressure chemical vapor deposition (HPCVD) method was also investigated by IR reflection spectroscopy and the average was found to vary between 7.0 - 8.6. The mobility of free carriers in InN thin films was calculated using the damping constant of the plasma oscillator. The terahertz detection capability of n-type GaAs/AlGaAs Heterojunction Interfacial Workfunction Internal Photoemission (HEIWIP) structures was demonstrated. A threshold frequency of 3.2 THz (93 µm) with a peak responsivity of 6.5 A/W at 7.1 THz was obtained using a 0.7 µm thick 1E18 cm−3 n - type doped GaAs emitter layer and a 1 µm thick undoped Al(0.04)Ga(0.96)As barrier layer. Using n - type doped GaAs emitter layers, the possibility of obtaining small workfunctions (∆) required for terahertz detectors has been successfully demonstrated. In addition, the possibility of using GaN (GaMnN) and InN materials for terahertz detection was investigated and a possible GaN base terahertz detector design is presented. The non - linear behavior of the Inter Pulse Time Intervals (IPTI) of neuron - like electric pulses triggered externally in a GaAs/InGaAs Multi Quantum Well (MQW) structure at low temperature (~10 K) was investigated. It was found that a grouping behavior of IPTIs exists at slow triggering pulse rates. Furthermore, the calculated correlation dimension reveals that the dimensionality of the system is higher than the average dimension found in most of the natural systems. Finally, an investigation of terahertz radiation efect on biological system is reported.
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9

Lin, Yi-Hsien, and 林宜賢. "Efficiency Improvement of p-i-n Solar Cell by Embedding Quantum Dots." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/70094043057804493256.

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碩士
國立臺灣大學
電信工程學研究所
102
A model of solar cell embedding quantum dots in the intrinsic layer of a p-i-n solar cell has been presented. With proper selection of material, size and fractional volume, quantum dots can provide an intermediate band between the valence and the conduction bands of the matrix material, which will absorb photons with energy lower than the original bandgap to absorb more incident photons in the otherwise unsed spectral irradiance. The design approach to acquire the highest efficiency of the conventional p-i-n solar cell is presented as a benchmark. Quantum dots are then embedded in the intrinsic region of the reference solar cell to improve its efficiency. InAs is chosen to implement the quantum dots, to be embedded in the p-i-n solar cell made of GaAs. With a more packed arrangement of QD’s from that in the literatures, the simulation results shows that the efficiency of the conventional GaAs p-i-n solar cell can be increased by 1.05%.
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10

Adam, Marcus. "Embedding of QDs into Ionic Crystals:: Methods, Characterization and Applications." Doctoral thesis, 2015. https://tud.qucosa.de/id/qucosa%3A29121.

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Colloidal semiconductor quantum dots (QDs) have gained substantial interest as adjustable, bright and spectrally tunable fluorophores in the past decades. Besides their in-depth analyses in the scientific community, first industrial applications as color conversion and color enrichment materials were implemented. However, stability and processability are essential for their successful use in these and further applications. Methods to embed QDs into oxides or polymers can only partially solve this challenge. Recently, our group introduced the embedding of QDs into ionic salts, which holds several advantages in comparison to polymer or oxide-based counterparts. Both gas permeability and environmental-related degradation processes are negligible, making these composites an almost perfect choice of material. To evaluate this new class of QD-salt mixed crystals, a thorough understanding of the formation procedure and the final composites is needed. The present work is focused on embedding both aqueous-based and oil-based metal-chalcogenide QDs into several ionic salts and the investigations of their optical and chemical properties upon incorporation into the mixed crystals. QDs with well-known, reproducible and high-quality synthetic protocols are chosen as emissive species. CdTe QDs were incorporated into NaCl as host matrix by using the straightforward "classical" method. The resulting mixed crystals of various shapes and beautiful colors preserve the strong luminescence of the incorporated QDs. Besides NaCl, also borax and other salts are used as host matrices. Mercaptopropionic acid stabilized CdTe QDs can easily be co-crystallized with NaCl, while thioglycolic acid as stabilizing agent results in only weakly emitting powder-like mixed crystals. This challenge was overcome by adjusting the pH, the amount of free stabilizer and the type of salt used, demonstrating the reproducible incorporation of highest-quality CdTe QDs capped with thioglycolic acid into NaCl and KCl salt crystals. A disadvantage of the "classical" mixed crystallization procedure was its long duration which prevents a straightforward transfer of the protocol to less stable QD colloids, e.g., initially oil-based, ligand exchanged QDs. To address this challenge, the "Liquid-liquid-diffusion-assisted-crystallization" (LLDC) method is introduced. By applying the LLDC, a substantially accelerated ionic crystallization of the QDs is shown, reducing the crystallization time needed by one order of magnitude. This fast process opens the field of incorporating ligand-exchanged Cd-free QDs into NaCl matrices. To overcome the need for a ligand exchange, the LLDC can also be extended towards a two-step approach. In this modified version, the seed-mediated LLDC provides for the first time the ability to incorporate oil-based QDs directly into ionic matrices without a prior phase transfer. The ionic salts appear to be very tight matrices, ensuring the protection of the QDs from the environment. As one of the main results, these matrices provide extraordinary high photo- and chemical stability. It is further demonstrated with absolute measurements of photoluminescence quantum yields (PL-QYs), that the PL-QYs of aqueous CdTe QDs can be considerably increased upon incorporation into a salt matrix by applying the "classical" crystallization procedure. The achievable PL enhancement factors depend strongly on the PL-QYs of the parent QDs and can be described by the change of the dielectric surrounding as well as the passivation of the QD surface. Studies on CdSe/ZnS in NaCl and CdTe in borax showed a crystal-induced PL-QY increase below the values expected for the respective change of the refractive index, supporting the derived hypothesis of surface defect curing by a CdClx formation as one main factor for PL-QY enhancement. The mixed crystals developed in this work show a high suitability as color conversion materials regarding both their stability and spectral tunability. First proof-of-concept devices provide promising results. However, a combination of the highest figures of merit at the same time is intended. This ambitious goal is reached by implementing a model-experimental feedback approach which ensures the desired high optical performance of the used emitters throughout all intermediate steps. Based on the approach, a white LED combining an incandescent-like warm white with an exceptional high color rendering index and a luminous efficacy of radiation is prepared. It is the first time that a combination of this highly related figures of merit could be reached using QD-based color converters. Furthermore, the idea of embedding QDs into ionic matrices gained considerable interest in the scientific community, resulting in various publications of other research groups based on the results presented here. In summary, the present work provides a profound understanding how this new class of QD-salt mixed crystal composites can be efficiently prepared. Applying the different crystallization methods and by changing the matrix material, mixed crystals emitting from blue to the near infrared region of the electromagnetic spectrum can be fabricated using both Cd-containing and Cd-free QDs. The resulting composites show extraordinary optical properties, combining the QDs spectral tunability with the rigid and tight ionic matrix of the salt. Finally, their utilization as a color conversion material resulted in a high-quality white LED that, for the first time, combines an incandescent-like hue with outstanding optical efficacy and color rendering properties. Besides that, the mixed crystals offer huge potential in other high-quality applications which apply photonic and optoelectronic components.
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Books on the topic "Quantum embedding"

1

1975-, Parcet Javier, ed. Mixed-norm inequalities and operator space Lp embedding theory. Providence, R.I: American Mathematical Society, 2010.

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Spectral analysis, differential equations, and mathematical physics: A festschrift in honor of Fritz Gesztesy's 60th birthday. Providence, Rhode Island: American Mathematical Society, 2013.

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Five-dimensional Physics: Classical And Quantum Consequences of Kaluza-klein Cosmology. World Scientific Publishing Company, 2006.

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Book chapters on the topic "Quantum embedding"

1

Ludwig, Günther. "The Embedding Problem." In An Axiomatic Basis for Quantum Mechanics, 12–107. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71897-7_2.

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Goez, Albrecht, and Johannes Neugebauer. "Embedding Methods in Quantum Chemistry." In Frontiers of Quantum Chemistry, 139–79. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5651-2_7.

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Cohen, Trevor, and Dominic Widdows. "Embedding Probabilities in Predication Space with Hermitian Holographic Reduced Representations." In Quantum Interaction, 245–57. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28675-4_19.

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Vyskočil, Tomáš, Scott Pakin, and Hristo N. Djidjev. "Embedding Inequality Constraints for Quantum Annealing Optimization." In Quantum Technology and Optimization Problems, 11–22. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14082-3_2.

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Pinilla, Jose P., and Steven J. E. Wilton. "Layout-Aware Embedding for Quantum Annealing Processors." In Lecture Notes in Computer Science, 121–39. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20656-7_7.

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Jozsa, Richard. "Invited Talk: Embedding Classical into Quantum Computation." In Mathematical Methods in Computer Science, 43–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-89994-5_5.

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Jansen, Marina, Nghia Nguyen Thi Minh, Erik D. Hedegård, and Carolin König. "Quantum-derived embedding schemes for local excitations." In Chemical Modelling, 24–60. Cambridge: Royal Society of Chemistry, 2022. http://dx.doi.org/10.1039/9781839169342-00024.

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Khan, Faisal Shah, and Travis S. Humble. "Nash Embedding and Equilibrium in Pure Quantum States." In Quantum Technology and Optimization Problems, 51–62. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14082-3_5.

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Ludwig, Günther. "Embedding As a Description of the Relation Between Macro- and Microphysics." In Fundamental Aspects of Quantum Theory, 225–32. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4684-5221-1_25.

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Ludwig, Günther. "Embedding of Ensembles and Effect Sets in Topological Vector Spaces." In An Axiomatic Basis for Quantum Mechanics, 101–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70029-3_4.

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Conference papers on the topic "Quantum embedding"

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Li, Qiuchi, Sagar Uprety, Benyou Wang, and Dawei Song. "Quantum-Inspired Complex Word Embedding." In Proceedings of The Third Workshop on Representation Learning for NLP. Stroudsburg, PA, USA: Association for Computational Linguistics, 2018. http://dx.doi.org/10.18653/v1/w18-3006.

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Zheng, G., N. Samkharadze, M. L. Noordam, N. Kalhor, D. Brousse, A. Sammak, U. C. Mendes, A. Blais, G. Scappucci, and L. M. K. Vandersypen. "Embedding Silicon Spin Qubits in Superconducting Circuits." In Quantum Information and Measurement. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/qim.2019.f3b.3.

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Vyskocil, Tomas, and Hristo Djidjev. "Simple Constraint Embedding for Quantum Annealers." In 2018 IEEE International Conference on Rebooting Computing (ICRC). IEEE, 2018. http://dx.doi.org/10.1109/icrc.2018.8638624.

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Rodriguez, Ramiro, Sean Crowe, Daniel Gunlycke, Fernando Escobar, and Joanna Ptasinski. "A Near-term Strategy for Solving Quantum Linear Systems Problems." In Quantum 2.0. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/quantum.2022.qtu2a.10.

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Abstract:
We present an efficient solution to a system of linear equations by integrating data preconditioning, low-depth quantum embedding, and a variational method demonstrating a strategy that allow near-term implementations on quantum processors minimizing resource utilization.
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Crowe, Sean T., Ramiro Rodriguez, Daniel Gunlycke, Fernando Escobar, and Joanna N. Ptasinski. "Efficient embedding to solve the quantum linear systems problem in near-term quantum processors." In Quantum Communications and Quantum Imaging XX, edited by Keith S. Deacon and Ronald E. Meyers. SPIE, 2022. http://dx.doi.org/10.1117/12.2632069.

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Vidro, L., Y. Pilnyak, and H. S. Eisenberg. "Quantum State Tomography with Feed-Forward - Towards Embedding Feed-Forward in Quantum Computation." In Quantum 2.0. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/quantum.2020.qw6b.9.

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Chiavassa, Pietro, Andrea Marchesin, Ignazio Pedone, Maurizio Ferrari Dacrema, and Paolo Cremonesi. "Virtual Network Function Embedding with Quantum Annealing." In 2022 IEEE International Conference on Quantum Computing and Engineering (QCE). IEEE, 2022. http://dx.doi.org/10.1109/qce53715.2022.00048.

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Ozdemir, S. K., T. Yamamoto, M. Koashi, and N. Imoto. "Embedding watermark in qubit strings using error correction coding." In International Quantum Electronics Conference, 2005. IEEE, 2005. http://dx.doi.org/10.1109/iqec.2005.1561054.

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Andrianopoli, Laura, M. Derix, G. W. Gibbons, C. Herdeiro, A. Santambrogio, and A. Van Proeyen. "Embedding Branes in Flat Two-time Spaces." In Quantum aspects of gauge theories, supersymmetry and unification. Trieste, Italy: Sissa Medialab, 2000. http://dx.doi.org/10.22323/1.004.0002.

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Liu, Minzhao, Junyu Liu, Rui Liu, Henry Makhanov, Danylo Lykov, Anuj Apte, and Yuri Alexeev. "Embedding Learning in Hybrid Quantum-Classical Neural Networks." In 2022 IEEE International Conference on Quantum Computing and Engineering (QCE). IEEE, 2022. http://dx.doi.org/10.1109/qce53715.2022.00026.

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Reports on the topic "Quantum embedding"

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Chan, Garnet Kin-Lic. Final Technical Report for Quantum Embedding for Correlated Electronic Structure in Large Systems and the Condensed Phase. Office of Scientific and Technical Information (OSTI), April 2017. http://dx.doi.org/10.2172/1353413.

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Miller, Thomas. Testing the applicability and potential impact of rigorous quantum embedding methods for the study and characterization of metal organic frameworks. Office of Scientific and Technical Information (OSTI), August 2013. http://dx.doi.org/10.2172/1322167.

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