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Littérature scientifique sur le sujet « Logica Quantistica »
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Articles de revues sur le sujet "Logica Quantistica"
MONTI, DALIDA. « CREATION AND DESTRUCTION OF CORPUSCLES ». Nuncius 14, no 1 (1999) : 169–200. http://dx.doi.org/10.1163/182539199x00805.
Texte intégralFabbroni, Roberto, Claudio Molinari et Antonio Sanna. « Riconnettere Corpo, Mente e Anima-Spirito per recuperare Salute e Benessere in una visione sistemica e unitaria che porti alla guarigione. » Scienze Biofisiche 5, no 1 (juillet 2022) : 1–32. http://dx.doi.org/10.48274/ibi15.
Texte intégralFulco, Giuseppe. « Un approccio interdisciplinare allo studio della coscienza ». Ricerca Psicoanalitica 33, no 3 (30 décembre 2022). http://dx.doi.org/10.4081/rp.2022.720.
Texte intégralThèses sur le sujet "Logica Quantistica"
CAPONIGRO, MICHELE. « Alla Ricerca del Reale : la Meccanica Quantistica ». Doctoral thesis, Università degli studi di Bergamo, 2017. http://hdl.handle.net/10446/77154.
Texte intégralCallisesi, Giulia. « Il teletrasporto quantistico : principi quantomeccanici ed esperimenti ». Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/11465/.
Texte intégralPUERTO, AUBEL ADRIAN. « Algebraic Structures for the Analysis of Distributability of Elementary Systems and their Processes ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2019. http://hdl.handle.net/10281/241253.
Texte intégralThis work studies systems, and the processes they execute, in the way they can be distributed. To this aim, the central notion is that when a system is distributed, a remote observation requires an exchange of information from the different locations of the system. This approach is characterised by the fact that handshaking is the basic mode of interaction. The chosen formalisms are taken in the framework Petri net theory. Elemen- tary net systems, and condition/event net systems provide specifications for the systems. Causal nets and partially ordered sets allow for modelling processes. With these last formalisations, the state of the art provides a notion of subpro- cesses that can be structured so as to carry information on how a process can be distributed. This structure is formalised as an orthomodular lattice. This work shows that the minimal non trivial elements of this lattice, the minimal subprocesses, can be ordered so as to provide an abstraction of the process. The nature of this notion of subprocess permits to show that this abstraction depicts the localities of the process, parts of the process which can run independently from each other. The behaviour of elementary, and condition/event net systems, is modelled with labelled transition systems. This work adheres to an interpretation of the set of elementary regions, as the one of locally observable properties of the sys- tem, motivated by elementary net synthesis. According to this interpretation, elementary regions represent a suitable specification of the available infrastruc- ture on which to distribute a system. The state of the art shows that the set of regions of an elementary, or condition/event system, forms an orthomodular poset, and a way to retrieve a canonical labelled transition system such that all regions of the orthomodular poset are also regions of it. The question of whether this canonical transition system has more regions than the specified ones is an open problem. The canonical transition system is the largest one can obtain from an orthomodular poset, in the sense that systems complying with the specification, can be found as subsystems of it. However, not all its subsystems display the same regional structure. This work presents a sufficient condition for this to happen. This is achieved by providing a structure to the set of events, or labels, of the canonical system, which reflects concurrency. An orthomodular poset is called stable when it is isomorphic to the set of regions of its canonical transition system. The state of the art shows that when the first poset is of a given class, it embeds in the second. It is conjectured that all posets that arise as the set of elementary regions of an elementary system, regional posets, are stable. This work provides a condition necessary for an orthomodular poset to be regional, and shows that when it holds, the embedding is strong. Not every embedding is strong, but all isomorphisms are, in particular, strong embeddings. This result implies that the embedding maps minimal regions to minimal regions.
Fossati, Michele. « Sviluppo di porte logiche quantistiche ». Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14087/.
Texte intégralBELLENTANI, LAURA. « Simulazioni numeriche per la dinamica a una e due particelle in regime di Hall quantistico e possibili implementazioni di gate logici basati su flying qubit ». Doctoral thesis, Università degli studi di Modena e Reggio Emilia, 2020. http://hdl.handle.net/11380/1199743.
Texte intégralQuantum information processing devices based on semiconductor heterostructures have the potential to be scalable and easier to be integrated in traditional electronic circuitry than systems based on different platforms. In particular, architectures exploiting the flying-qubit paradigm proved theoretically to allow the implementation of a universal set of quantum gates. We focus on coupled electron interferometers based on edge channels in the Integer Quantum Hall regime for the physical implementation of flying qubits and gates, and study numerically the feasibility of such devices and their quantum computing capabilities. Hall edge states are chiral conductive channels running along the border of a confined 2DEG, with a remarkably long coherence length. Their path can be controlled by means of metallic gates that locally deplete the 2DEG in order to engineer electron interferometers. In addition to the use of interfering currents, electron quantum optics is nowadays realized also by injecting single-electron excitations. Specifically, an injection protocol based on non-adiabatic quantum dot pumps has been recently proposed. In contrast to other types of excitations, these wave packets are characterized by an energy much larger than the Fermi level, and their Gaussian shape ensures a robust control of the wave packet dynamics. After reviewing the theoretical modelling and some experimental realizations of the two most common single-electron excitations, i.e. levitons and Landau quasi-particles, we present our numerical approach for the dynamical simulation of wave packets in edge states. To simulate their evolution in a realistic 2D geometry, we developed an in-house a parallel solver of the time-depedent Schroedinger equation based on the Split-Step Fourier algorithm. Our findings in the dynamic framework are compared to simplified analytical models based on effective 1D geometries and the scattering matrix method. We highlight the numerical challenges in the application of the Split-Step Fourier method for a two-particle system in a 2D geometry, which involves data distribution of the ensuing 4D wavefunction on multi-node HPC architectures with the MPI paradigm. Our time-dependent method has been initially applied to simulate self-electron interference in a scalable geometry of the electron Mach-Zehnder interferometer (MZI) at bulk filling factor two. By accounting for the exact shape of the edge states generated by the full-scale design of the interferometer, we engineer an electron beam splitter that ensures a higher visibility with respect to a traditional quantum point contact. Moreover, we prove the validity of our numerical method by studying two-electron antibunching in an Hall-driven Hong-Ou-Mandel interferometer. Here, we characterize the origin of the non-zero bunching probability - observed experimentally - by studying the interplay between the energy broadening of the two interfering wave packets and the exact geometry of the electron beam splitter. Thanks to the computation of the non separable 4D wavefunction, we include exactly Coulomb interaction between our strongly-localized wave packets, and introduce the effect of screening to observe the transition from an exchange-driven to a Coulomb-driven interferometer in the operating regime of interest. Finally, we propose a solid-state implementation of a conditional phase shifter based on edge states, engineered by concatenating in parallel two multichannel MZIs. Here, the exact simulation of Coulomb-driven electron scattering in 2D allows us to analyze the interplay between the selective action of electron repulsion, that acts as the entangler, and the full-scale geometry of the device.
Livres sur le sujet "Logica Quantistica"
Lupacchini, Rossella. Risorse fisiche nella matematica : Dal finitismo hilbertiano ai calcolatori quantistici. Cesena : Il ponte vecchio, 1999.
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