Zobrazeno 1 - 10 of 12 pro vyhledávání: '"Y. Y. Atas"'
1
SU(2) hadrons on a quantum computer via a variational approach
Autor: Amin Jahanpour, Christine A. Muschik, Y. Y. Atas, Randy Lewis, Jan Haase, Jinglei Zhang
Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
Nature Communications
Quantum computers have the potential to create important new opportunities for ongoing essential research on gauge theories. They can provide simulations that are unattainable on classical computers such as sign-problem afflicted models or time evolu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8e89dd49c226c7eeba374d34a2c0cc4
https://pubmed.ncbi.nlm.nih.gov/34764262
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2
Nonequilibrium quantum thermodynamics of determinantal many-body systems: Application to the Tonks-Girardeau and ideal Fermi gases
Autor: Arghavan Safavi-Naini, Y. Y. Atas, Karen Kheruntsyan
We develop a general approach for calculating the characteristic function of the work distribution of quantum many-body systems in a time-varying potential, whose many-body wave function can be cast in the Slater determinant form. Our results are app
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d021cb59a19c85c23eb333b6edec451
http://arxiv.org/abs/2005.07313
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3
Finite-temperature dynamics of a Tonks-Girardeau gas in a frequency-modulated harmonic trap
Autor: Y. Y. Atas, Karen Kheruntsyan, S. A. Simmons
We study the out-of-equilibrium dynamics of a finite-temperature harmonically trapped Tonks-Girardeau gas induced by periodic modulation of the trap frequency. We give explicit exact solutions for the real-space density and momentum distributions of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e02b50817455da236fd7a83c95fbcab5
http://arxiv.org/abs/1908.01291
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4
Collective many-body bounce in the breathing-mode oscillations of a Tonks-Girardeau gas
Autor: Y. Y. Atas, Isabelle Bouchoule, Dimitri M. Gangardt, Karen Kheruntsyan
Publikováno v: Physical Review A
Physical Review A, American Physical Society, 2017, 96 (4), ⟨10.1103/PhysRevA.96.041605⟩
We analyse the breathing-mode oscillations of a harmonically quenched Tonks-Giradeau (TG) gas using an exact finite-temperature dynamical theory. We predict a striking collective manifestation of impenetrability---a collective many-body bounce effect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e880e8b9b75a6cce7d195ae306cdd691
https://hal.archives-ouvertes.fr/hal-01671869
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5
Exact nonequilibrium dynamics of finite-temperature Tonks-Girardeau gases
Autor: Karen Kheruntsyan, Isabelle Bouchoule, Dimitri M. Gangardt, Y. Y. Atas
Publikováno v: Physical Review A
Physical Review A, American Physical Society, 2017, 95, pp.043622
Describing finite-temperature nonequilibrium dynamics of interacting many-particle systems is a notoriously challenging problem in quantum many-body physics. Here we provide an exact solution to this problem for a system of strongly interacting boson
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f56456dd20abe084541817a3b943b97e
https://hal.archives-ouvertes.fr/hal-01565661
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6
Quantum Ising model in transverse and longitudinal fields: chaotic wave functions
Autor: Y. Y. Atas, Eugene Bogomolny
Publikováno v: Journal of Physics A: Mathematical and General (1975-2006)
Journal of Physics A: Mathematical and General (1975-2006), IOP Publishing, 2017, 50 (38), pp.385102. ⟨10.1088/1751-8121/aa81f6⟩
Journal of Physics A: Mathematical and General (1975-2006), IOP Publishing, 2017, 50, pp.385102
The construction of a statistical model for eigenfunctions of the Ising model in transverse and longitudinal fields is discussed in detail for the chaotic case. When the number of spins is large, each wave function coefficient has the Gaussian distri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7816b33a6b794e6d2f1c37bacc752f1
https://doi.org/10.1088/1751-8121/aa81f6
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7
Calculation of multifractal dimensions in spin chains
Autor: E. Bogomolny, Y. Y. Atas
Publikováno v: Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences (1934–1990)
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences (1934–1990), Royal Society, The, 2014, 372, pp.20120520
It was demonstrated in [Phys. Rev. E 86, 021104, (2012)], that the ground-state wave functions for a large variety of one-dimensional spin-1/2 models are multifractals in the natural spin-z basis. We present here the details of analytical derivations
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56403c4580f4ab8cd102efc21781b2b7
https://hal.archives-ouvertes.fr/hal-00996970
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8
Distribution of the ratio of consecutive level spacings in random matrix ensembles
Autor: Y. Y. Atas, E. Bogomolny, Olivier Giraud, Guillaume Roux
Publikováno v: Physical Review Letters
Physical Review Letters, American Physical Society, 2013, 110, pp.084101
We derive expressions for the probability distribution of the ratio of two consecutive level spacings for the classical ensembles of random matrices. This ratio distribution was recently introduced to study spectral properties of many-body problems,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7a700f8bfd8ad05b2bce4360837923d
https://hal.archives-ouvertes.fr/hal-00795161
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9
Joint probability densities of level spacing ratios in random matrices
Autor: Pierpaolo Vivo, Olivier Giraud, Edoardo Vivo, E. Bogomolny, Y. Y. Atas
Publikováno v: Journal of Physics A: Mathematical and Theoretical
Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2013, 46, pp.355204
We calculate analytically, for finite-size matrices, joint probability densities of ratios of level spacings in ensembles of random matrices characterized by their associated confining potential. We focus on the ratios of two spacings between three c
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10
Multifractality of eigenfunctions in spin chains
Autor: E. Bogomolny, Y. Y. Atas
Publikováno v: Physical Review E. 86
We investigate different one-dimensional quantum spin-$\frac{1}{2}$ chain models, and by combining analytical and numerical calculations we prove that their ground state wave functions in the natural spin basis are multifractals with, in general, non
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7625c2aede83c12ff2b843029236e4c
https://doi.org/10.1103/physreve.86.021104
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