Literatura científica selecionada sobre o tema "Gaussian quantum mechanics"
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Artigos de revistas sobre o assunto "Gaussian quantum mechanics"
ACOSTA, D., P. FERNÁNDEZ DE CÓRDOBA, J. M. ISIDRO e J. L. G. SANTANDER. "EMERGENT QUANTUM MECHANICS AS A CLASSICAL, IRREVERSIBLE THERMODYNAMICS". International Journal of Geometric Methods in Modern Physics 10, n.º 04 (6 de março de 2013): 1350007. http://dx.doi.org/10.1142/s0219887813500072.
Texto completo da fonteSankovich, D. P. "Bogolyubov Gaussian Measure in Quantum Statistical Mechanics". Universal Journal of Physics and Application 13, n.º 2 (março de 2019): 29–41. http://dx.doi.org/10.13189/ujpa.2019.130201.
Texto completo da fonteSimon, R., E. C. G. Sudarshan e N. Mukunda. "Gaussian-Wigner distributions in quantum mechanics and optics". Physical Review A 36, n.º 8 (1 de outubro de 1987): 3868–80. http://dx.doi.org/10.1103/physreva.36.3868.
Texto completo da fonteKHRENNIKOV, ANDREI. "QUANTUM CORRELATIONS FROM CLASSICAL GAUSSIAN RANDOM VARIABLES: FUNDAMENTAL ROLE OF VACUUM NOISE". Fluctuation and Noise Letters 09, n.º 04 (dezembro de 2010): 331–41. http://dx.doi.org/10.1142/s0219477510000265.
Texto completo da fontePrzhiyalkovskiy, Y. V. "Quantum process in probability representation of quantum mechanics". Journal of Physics A: Mathematical and Theoretical 55, n.º 8 (1 de fevereiro de 2022): 085301. http://dx.doi.org/10.1088/1751-8121/ac4b15.
Texto completo da fonteALAVI, S. A. "SCATTERING IN NONCOMMUTATIVE QUANTUM MECHANICS". Modern Physics Letters A 20, n.º 13 (30 de abril de 2005): 1013–20. http://dx.doi.org/10.1142/s021773230501697x.
Texto completo da fonteIomin, Alexander, Ralf Metzler e Trifce Sandev. "Topological Subordination in Quantum Mechanics". Fractal and Fractional 7, n.º 6 (25 de maio de 2023): 431. http://dx.doi.org/10.3390/fractalfract7060431.
Texto completo da fonteSchnabel, Roman, e Mikhail Korobko. "Macroscopic quantum mechanics in gravitational-wave observatories and beyond". AVS Quantum Science 4, n.º 1 (março de 2022): 014701. http://dx.doi.org/10.1116/5.0077548.
Texto completo da fonteMUÑOZ-TAPIA, R., J. TARON e R. TARRACH. "THE UNCERTAINTY OF THE GAUSSIAN EFFECTIVE POTENTIAL". International Journal of Modern Physics A 03, n.º 09 (setembro de 1988): 2143–63. http://dx.doi.org/10.1142/s0217751x88000898.
Texto completo da fonteLasser, Caroline, e Christian Lubich. "Computing quantum dynamics in the semiclassical regime". Acta Numerica 29 (maio de 2020): 229–401. http://dx.doi.org/10.1017/s0962492920000033.
Texto completo da fonteTeses / dissertações sobre o assunto "Gaussian quantum mechanics"
Coughtrie, David James. "Gaussian wave packets for quantum statistical mechanics". Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682558.
Texto completo da fonteBartók-Pártay, Albert. "Gaussian approximation potential : an interatomic potential derived from first principles Quantum Mechanics". Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608570.
Texto completo da fonteBaghery, Mehrdad. "Dynamics of Driven Quantum Systems:". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-232398.
Texto completo da fonteYockel, Scott. "The evaluation, development, and application of the correlation consistent basis sets". Thesis, University of North Texas, 2006. https://digital.library.unt.edu/ark:/67531/metadc5484/.
Texto completo da fonteYao, Yuan. "Automated design of photonic quantum circuits". Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAT005.
Texto completo da fonteQuantum computing is based on quantum physics phenomena, such assuperposition and entanglement and it promises to revolutionize the world of computing. Photonics is a prominent platform for realizing fault-tolerant quantum computing. It has various qualities: working at room temperature, large-scale manufacturability using existing foundries for silicon chips, and compatibility with optical communication to interconnect different quantum computers.Our main goal is to automate the design of photonic quantum circuits and of their interconnects. Before a real photonic quantum computer can be manufactured, it is essential to numerically simulate and optimize the corresponding circuits, which in practice are built out of Gaussian components such as squeezers, beam-splitters, phase shifters, and homodyne detectors. To achieve universality, we also need non-Gaussian effects, which can be supplied by photon-number-resolving detectors. We design circuits from this toolbox and optimize them for various applications using various gradient descent algorithms, some of which we adapted to our purpose.The main contributions are:1. In photonics, Fock space and phase space representations are both useful formalisms to describe quantum states and transformations. We introduce a unified Fock space representation of all Gaussian objects in terms of a single linear recurrence relation that can recursively generate their Fock space amplitudes.2. We find the composition rule of Gaussian operations in Fock space, which allows us to obtain the correct global phase when composing Gaussian operations (normally absent from the phase space description), and therefore to extend our model to states that can be written as linear combinations of Gaussians.3. Our recursive representation is differentiable, allowing for a straightforward computation of the gradients of a Gaussian object with respect to any parametrization. We then adapt gradient-based optimization to the problem of circuit optimization. We implement a Euclidean optimizer (i.e. which doesn't take the geometry of parameter space unto account) in order to optimize each parametrized component of a circuit. Then we study two ways to account for geometry: first we apply Riemannian optimization, by combining all the Gaussian operations into a global transformation and following a geodesic on the manifold of symplectic matrices to find the optimized transformation, at which point we can decompose it back into fundamental optical components. Second, we generalize a complex version of the natural gradient for optical quantum circuits to accelerate the convergence of the training process.4. We also give some optimal task-based strategies for using our recurrence relations. New algorithms are proposed to calculate, for instance, the amplitudes of a mixed state and the transformation matrix of interferometers. In addition, we derive a fast contraction algorithm for Gaussian transformations, which allows us to "fuse" the computation of the amplitudes of a Gaussian transformation and its action on any state.5. With the simulation on differentiable photonic quantum circuits built from the recurrence relation, we can design photonic quantum circuits automatically. We give state preparation as the first example; we find circuits that can produce high-fidelity states in a reasonable time, such as cat states with mean photon number 4, fidelity 99.38%, and success probability 7.3%. We can also optimize a 216-mode interferometer to make a Gaussian Boson Sampling experiment harder to spoof.6. We made this work available in various open-source libraries: TheWalrus, StrawberryFields, Poenta, and MrMustard
Prascher, Brian P. Wilson Angela K. "Systematic approaches to predictive computational chemistry using the correlation consistent basis sets". [Denton, Tex.] : University of North Texas, 2009. http://digital.library.unt.edu/permalink/meta-dc-9920.
Texto completo da fonteHaruna, Luis Fernando. "Propriedades físicas de operações gaussianas sobre estados gaussianos emaranhados". [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278360.
Texto completo da fonteDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin
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Resumo: Estudamos estados Gaussianos quânticos e as propriedades físicas associadas a operações sobre tal classe de estados que preservam a sua natureza Gaussiana. Propriedades gerais de matrizes de covariância globais representando estados Gaussianos bipartidos de dois modos podem ser decompostas em propriedades de matrizes de covariância locais e seus complementos de Schur. Demonstramos que dado um estado Gaussiano de dois modos r12 descrito por uma matriz de covariância V 4 × 4, o complemento de Schur de uma submatriz de covariância local V2 2 × 2 pode ser interpretado como uma nova matriz de covariância representando um operador Gaussiano do modo 1 condicionado a medições de paridade no modo 2. Como o valor médio da paridade está relacionado com a determinação da função de Wigner de um estado na origem do espaço de fase, que pode ser obtido facilmente através de experimentos de fotocontagem, este resultado nos permite estudar propriedades desta função em termos das probabilidades de medições pares e ímpares no modo local. Também generalizamos este procedimento para um estado Gaussiano de n modos e demonstramos que o operador dos n - 1 sistemas condicionado a projeções parciais de paridade está relacionado com uma matriz de covariância tal que seus elementos bloco 2 × 2 são complementos de Schur de matrizes especiais locais. A determinação da relação entre uma estrutura matemática (o complemento de Schur) com um processo físico permitiram a construção de um protocolo para a identificação de propriedades de emaranhamento de um estado Gaussiano de dois modos via apenas medições/operações locais e um canal de comunicação clássica entre as duas partes. Este protocolo se baseia na obtenção dos quatro invariantes simpléticos locais do grupo Sp(2, R) que determinam as propriedades de emaranhamento e de pureza do sistema Gaussiano de dois modos. Além disso, para uma classe de estados Gaussianos simétricos, que inclui por exemplo o estado comprimido com ruído térmico e o estado EPR, este protocolo também é útil para a reconstrução de sua matriz de covariância
Abstract: We study quantum Gaussian states and the physical properties associated to operations over such class of states, which preserve the respective Gaussian nature. General properties of global covariance matrices representing two-mode bipartite Gaussian states can be decomposed into properties of local covariance matrices and their Schur complements. We demonstrate that given a two-mode Gaussian state r12 described by a 4 × 4 covariance matrix V, the Schur complement of a 2 × 2 local covariance sub-matrix V2 of it can be interpreted as a new covariance matrix representing a Gaussian operator of party 1 conditioned to local parity measurements on party 2. As the parity mean value is related to the determination of the Wigner function of a state at the origin of the phase-space, which can be achieved straightforwardly by photocounting experiments, this result allow us to study properties of this function in terms of the odd and even measurements probabilities of the local mode. We also generalize this procedure to a n partite Gaussian state and we demonstrate that a n - 1 system operator conditioned to a partial projection is given by a covariance matrix such as its 2 × 2 block elements are Schur complements of special local matrices. The determination of the relation between a mathematical structure (the Schur complement) with a physical process allowed us to construct a protocol to identify the two-mode Gaussian state entanglement properties via only local measure-ments/ operations and a classical communication channel between the two parties. This protocol is established from the achievement of the four local sympletic invariants of the Sp(2, R) group, which determines the entanglement and purity properties of a two-mode Gaussian state. Moreover, for the symmetric Gaussian states class, which include for example the squeezed thermal state and the EPR state, this protocol is also uselfull for the covariance matrix reconstruction
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Mestre em Física
Monir, Md M. "A COMPUTATIONAL INVESTIGATION OF SECTORAL ZONING OF RARE EARTH ELEMENTS (REE) IN FLUORITE". Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1438881165.
Texto completo da fontePrascher, Brian P. "Systematic Approaches to Predictive Computational Chemistry using the Correlation Consistent Basis Sets". Thesis, University of North Texas, 2009. https://digital.library.unt.edu/ark:/67531/metadc9920/.
Texto completo da fonteSharkey, Keeper Layne. "Very Accurate Quantum Mechanical Non-Relativistic Spectra Calculations of Small Atoms & Molecules Employing All-Particle Explicitly Correlated Gaussian Basis Functions". Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/560835.
Texto completo da fonteLivros sobre o assunto "Gaussian quantum mechanics"
Center, Ames Research, ed. Near Hartree-Fock quality Gaussian type orbital basis sets for the first- and third-row atoms. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1989.
Encontre o texto completo da fonteCenter, Ames Research, ed. Near Hartree-Fock quality Gaussian type orbital basis sets for the first- and third-row atoms. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1989.
Encontre o texto completo da fonteCenter, Ames Research, ed. Near Hartree-Fock quality Gaussian type orbital basis sets for the first- and third-row atoms. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1989.
Encontre o texto completo da fonteKnut, Faegri, e Ames Research Center, eds. High quality Gaussian basis sets for fourth-row atoms. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1992.
Encontre o texto completo da fonteKnut, Faegri, e Ames Research Center, eds. High quality Gaussian basis sets for fourth-row atoms. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1992.
Encontre o texto completo da fonteThe Gaussian approximation potential: An interatomic potential derived from first principles quantum mechanics. Heidelberg: Springer, c2010., 2010.
Encontre o texto completo da fonteDyall, Kenneth G. Polyatomic molecular Dirac-Hartree-Fock calculations with Gaussian basis sets. [Moffett Field, CA: NASA Ames Research Center, 1990.
Encontre o texto completo da fontePoirier, Raymond. Handbook of Gaussian basis sets: A compendium for Ab-initio molecular orbital calculations. Amsterdam: Elsevier, 1985.
Encontre o texto completo da fontePoirier, Raymond. Handbook of Gaussian basis sets: A compendium for ab-initio molecular orbital calculations. Amsterdam: Elsevier, 1985.
Encontre o texto completo da fonteQuinn, Charles M. Computational Quantum Chemistry: An Interactive Guide to Basis Set Theory. Academic Press, 2002.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Gaussian quantum mechanics"
Miao, Haixing. "State Preparation: Non-Gaussian Quantum State". In Exploring Macroscopic Quantum Mechanics in Optomechanical Devices, 151–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25640-0_10.
Texto completo da fonte"A Gaussian integrals". In Quantum Mechanics, 455–64. De Gruyter, 2021. http://dx.doi.org/10.1515/9783110751949-011.
Texto completo da fonteZinn-Justin, Jean. "GAUSSIAN INTEGRALS". In Path Integrals in Quantum Mechanics, 1–26. Oxford University Press, 2004. http://dx.doi.org/10.1093/acprof:oso/9780198566748.003.0001.
Texto completo da fonte"A Mathematical Interlude: Gaussian Integrals". In Lectures on Quantum Mechanics, 467–78. Cambridge University Press, 2020. http://dx.doi.org/10.1017/9781108555241.031.
Texto completo da fonteAnderson, Brian P. "Properties of 1D Gaussian Wavefunctions". In Field Guide to Quantum Mechanics. SPIE, 2019. http://dx.doi.org/10.1117/3.2512268.ap6.
Texto completo da fonte"Appendix C. The Gaussian Wave Packet Centered at k = k0." In Quantum Mechanics I, 433–36. Sciendo, 2018. http://dx.doi.org/10.2478/9783110627756-019.
Texto completo da fonteKaiser, H., S. A. Werner, R. Clothier, H. Rauch e H. Wölwitsch. "Quantum Interference of Non–Gaussian Wave Packets". In Foundations of Quantum Mechanics, 115–23. WORLD SCIENTIFIC, 1992. http://dx.doi.org/10.1142/9789814436687_0016.
Texto completo da fonteZinn-Justin, Jean. "Gaussian integrals. Algebraic preliminaries". In Quantum Field Theory and Critical Phenomena, 1–17. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834625.003.0001.
Texto completo da fonteChen, Yanbei. "Quantum Optomechanics: from Gravitational Wave Detectors to Macroscopic Quantum Mechanics". In Quantum Optomechanics and Nanomechanics, 129–82. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198828143.003.0004.
Texto completo da fonteZinn-Justin, Jean. "Euclidean path integrals and quantum mechanics (QM)". In Quantum Field Theory and Critical Phenomena, 18–41. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834625.003.0002.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Gaussian quantum mechanics"
YALCIN, G. CIGDEM, YANI SKARLATOS e K. GEDIZ AKDENIZ. "q-GAUSSIAN ANALYSIS IN COMPLEX POLYMERS". In Quantum Mechanics, Elementary Particles, Quantum Cosmology and Complexity. WORLD SCIENTIFIC, 2010. http://dx.doi.org/10.1142/9789814335614_0073.
Texto completo da fonteKHRENNIKOV, A. YU. "TO QUANTUM MECHANICS THROUGH GAUSSIAN INTEGRATION AND THE TAYLOR EXPANSION OF FUNCTIONALS OF CLASSICAL FIELDS". In Proceedings of the 26th Conference. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812770271_0027.
Texto completo da fonteA. JASIM, Nidaa. "THEORETICAL STUDY OF THE PHYSICAL PROPERTIES AND THERMODYNAMIC FUNCTIONS OF ASPIRIN USING QUANTUM MECHANICS CALCULATION (PARAMETRIC METHOD 3)". In VII. INTERNATIONAL SCIENTIFIC CONGRESSOF PURE,APPLIEDANDTECHNOLOGICAL SCIENCES. Rimar Academy, 2023. http://dx.doi.org/10.47832/minarcongress7-14.
Texto completo da fonteMaignan, Aude, e Tony Scott. "Quantum Clustering Analysis: Minima of the Potential Energy Function". In 9th International Conference on Signal, Image Processing and Pattern Recognition (SPPR 2020). AIRCC Publishing Corporation, 2020. http://dx.doi.org/10.5121/csit.2020.101914.
Texto completo da fonteShafagh, Ida, Kevin J. Hughes, Mohamed Pourkashanian e Alan Williams. "Investigation Into Bio-Aviation Reaction Mechanisms Using Quantum Mechanical Methods". In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67512.
Texto completo da fonteFrieden, B. Roy. "Fisher information and error complimentarity". In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.fl3.
Texto completo da fonteSteely, S. L. "Harmonic oscillator fiducials for Hermite–Gaussian laser beams". In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/oam.1993.thdd.46.
Texto completo da fonteNurdin, Hendra I., Matthew R. James e Ian R. Petersen. "Linear Quadratic Gaussian Control of Quantum Linear Stochastic Systems with Quantum Mechanical Controllers". In Quantum-Atom Optics Downunder. Washington, D.C.: OSA, 2007. http://dx.doi.org/10.1364/qao.2007.qme33.
Texto completo da fonteVladimirov, Igor G. "A quantum mechanical version of price's theorem for Gaussian states". In 2014 4th Australian Control Conference (AUCC). IEEE, 2014. http://dx.doi.org/10.1109/aucc.2014.7358675.
Texto completo da fonteGaeta, Z. Dacic, e C. R. Stroud. "Classical and quantum-mechanical dynamics of the quasiclassical state of the hydrogen atom". In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tue2.
Texto completo da fonteRelatórios de organizações sobre o assunto "Gaussian quantum mechanics"
Sawada, Shin-Ichi, Robert Heather, Bret Jackson e Horia Metiu. The Strategy for Time Dependent Quantum Mechanical Calculations Using a Gaussian Wave Packet Representation of the Wave Function. Fort Belvoir, VA: Defense Technical Information Center, janeiro de 1985. http://dx.doi.org/10.21236/ada152709.
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