Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Amichay Vardi"'
Publikováno v:
Physical Review Research, Vol 6, Iss 4, p 043282 (2024)
There has recently been a growing effort to understand the physics and intricate dynamics of many-body and many-state (multimode) interacting bosonic systems in a comprehensive manner. For instance, in photonics, nonlinear multimode fibers are being
Externí odkaz:
https://doaj.org/article/f79e7d3a5568452297a07898e13fb3ea
Publikováno v:
New Journal of Physics, Vol 18, Iss 5, p 055008 (2016)
We investigate the role of interatomic interactions when a Bose gas, in a double-well potential with a finite tunneling probability (a ‘Bose–Josephson junction’), is exposed to external noise. We examine the rate of decoherence of a system init
Externí odkaz:
https://doaj.org/article/b5e8d291780d4e908c08f04fd8ed6b54
Publikováno v:
New Journal of Physics, Vol 17, Iss 2, p 023071 (2015)
We highlight a dynamical anomaly in which the rate of relaxation towards thermal equilibrium in a bi-partite quantum system violates the standard linear-response (Kubo) formulation, even when the underlying dynamics is highly chaotic. This anomaly or
Externí odkaz:
https://doaj.org/article/2942f216d4de45209ff8023c42141dd7
Autor:
Amichay Vardi
The entanglement between two weakly coupled bosonic Josephson junctions is studied in relation to the classical mixed phasespace structure of the system, containing symmetry-related regular islands separated by chaos. The symmetry-resolved entangleme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e614d0317bcfd0d1d8a43c5ea8b1cf21
http://arxiv.org/abs/2208.08192
http://arxiv.org/abs/2208.08192
Publikováno v:
Physical review. E. 106(4)
We study the interplay of chaos and tunnelling between two weakly-coupled Bose-Josephson junctions. The classical phase space of the composite system has a mixed structure including quasi-integrable self-trapping islands for particles and excitations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f59a7d1be82c6296bab5f89d30ae2787
https://pubmed.ncbi.nlm.nih.gov/36397523
https://pubmed.ncbi.nlm.nih.gov/36397523
The driven-dissipative Dicke model features normal, superradiant, and lasing steady-states that may be regular or chaotic. We report quantum signatures of chaos in a quench protocol from the lasing states. Within the framework of a classical mean-fie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6623aebc1d0a0a0b25e80a2bd523ddef
http://arxiv.org/abs/2201.07669
http://arxiv.org/abs/2201.07669
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
Scientific Reports
Scientific Reports
The microscopic onset of irreversibility is finally becoming an experimental subject. Recent experiments on microscopic open and even isolated systems have measured statistical properties associated with entropy production, and hysteresis-like phenom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37fa07389a4e9e87b44da59a2ec48015
http://link.springer.com/article/10.1038/s41598-019-50608-z
http://link.springer.com/article/10.1038/s41598-019-50608-z
Publikováno v:
Physical review. E. 102(5-1)
We study noncanonical relaxation in an aggregate of subsystems with negative specific heat. The Thirring instability drives the constituent subsystems towards the edges of their energy spectrum, so that the existence of a single adiabatic invariant r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cfa889cb35b547c1763acb0781bf53f
https://pubmed.ncbi.nlm.nih.gov/33327107
https://pubmed.ncbi.nlm.nih.gov/33327107
Publikováno v:
Physical Review A. 101
We show that the Bose-Hubbard approximation fails due to the emergence of chaos, even when excited modes are far detuned and the standard validity condition is satisfied. This is formally identical to the Melnikov-Arnold analysis of the stochastic pu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76b212d5a997457d082d1433c734d1bb
https://doi.org/10.1103/physreva.101.013624
https://doi.org/10.1103/physreva.101.013624
Autor:
Amichay Vardi, Amit Dey
We study the effect of interactions on the conversion of atomic -to molecular Bose-Einstein condensates via stimulated Raman adiabatic passage. Both energetic instability during avoided crossings and dynamical instability during chaotic intervals lim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::096ac43fc34bfe027eaf5fa3ba57e83e