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相关论文: Quench dynamics in topologically non-trivial quant…

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We study the ground-state properties of a two-component fermionic mixture effectively confined in a one-dimensional harmonic trap. We consider scenarios when numbers of particles in components are the same but particles have different…

量子气体 · 物理学 2020-03-10 Patrycja Łydżba , Tomasz Sowiński

Many-body systems with both coherent dynamics and dissipation constitute a rich class of models which are nevertheless much less explored than their dissipationless counterparts. The advent of numerous experimental platforms that simulate…

量子气体 · 物理学 2016-04-28 Mohammad F. Maghrebi , Alexey V. Gorshkov

By using numerical simulations, we investigate the dynamics of a quantum system of interacting bosons. We find an increase of properly defined mixing properties when the number of particles increases at constant density or the interaction…

凝聚态物理 · 物理学 2009-10-28 Giovanni Jona-Lasinio , Carlo Presilla

We apply a recently proposed novel thermostating mechanism to an interacting many-particle system where the bulk particles are moving according to Hamiltonian dynamics. At the boundaries the system is thermalized by deterministic and…

chao-dyn · 物理学 2009-10-31 C. Wagner , R. Klages , G. Nicolis

We study the nonequilibrium dynamics of a many-body bosonic system on a lattice, subject to driving and dissipation. The time-evolution is described by a master equation, which we treat within a generalized Gutzwiller mean field…

量子气体 · 物理学 2013-05-29 Andrea Tomadin , Sebastian Diehl , Peter Zoller

Many-body systems undergoing quantum phase transitions reveal substantial growth of non-classical correlations between different parties of the system. This behavior is manifested by characteristic divergences of the von Neumann entropy.…

量子气体 · 物理学 2020-02-12 Damian Włodzyński , Daniel Pęcak , Tomasz Sowiński

We introduce a nonequilibrium phenomenon, reminiscent of Anderson's orthogonality catastrophe (OC), that arises in the transient dynamics following an interaction quench between a quantum system and a localized defect. Even if the system…

量子物理 · 物理学 2026-04-20 Beatrice Donelli , Gabriele De Chiara , Francesco Scazza , Stefano Gherardini

We study the nonequilibrium dynamics of a quasiperiodic quantum Ising chain after a sudden change in the strength of the transverse field at zero temperature. In particular we consider the dynamics of the entanglement entropy and the…

统计力学 · 物理学 2013-06-18 Ferenc Igloi , Gergo Roosz , Yu-Cheng Lin

The dynamics of isolated quantum systems following a sudden quench plays a central role in many areas of material science, high-energy physics, and quantum chemistry. Featuring complex phenomena with implications for thermalization,…

We study the out-of-equilibrium dynamics of two interacting atoms in a one-dimensional harmonic trap after a quench by a tightly pinned impurity atom. We make use of an approximate variational calculation called the Lagrange-mesh method to…

量子物理 · 物理学 2016-12-28 Tim Keller , Thomás Fogarty

The neutron star's crust and mantel are typical examples of non-uniform bulk systems with spacial localisations. When modelling such systems at low temperatures, as is the case in the crust, one has to work with antisymmetrised many-body…

核理论 · 物理学 2012-04-18 Klaas Vantournhout , Hans Feldmeier

We study the non-equilibrium dynamics of a one-dimensional Bose gas trapped by a harmonic potential for a quench from zero to infinite interaction. The different thermodynamic limits required for the equilibrium pre- and post-quench…

量子气体 · 物理学 2018-04-06 Mario Collura , Márton Kormos , Pasquale Calabrese

We employ quench dynamics as an effective tool to probe different universality classes of topological phase transitions. Specifically, we study a model encompassing both Dirac-like and nodal loop criticalities. Examining the Kibble-Zurek…

统计力学 · 物理学 2022-12-06 Karin Sim , R. Chitra , Paolo Molignini

We address the quantum dynamics of a system composed of a qubit globally coupled to a many-body system characterized by short-range interactions. We employ a dynamic finite-size scaling framework to investigate the out-of-equilibrium…

统计力学 · 物理学 2019-05-20 Davide Rossini , Ettore Vicari

Direct measurement of a bulk topological observable in topological phase of matter has been a long-standing issue. Recently, detection of bulk topology through quench dynamics has attracted growing interests. Here, we propose that…

介观与纳米尺度物理 · 物理学 2021-02-04 Tomonari Mizoguchi , Yoshihito Kuno , Yasuhiro Hatsugai

Non-equilibrium dynamics of many-body systems is important in many branches of science, such as condensed matter, quantum chemistry, and ultracold atoms. Here we report the experimental observation of a phase transition of the quantum…

量子物理 · 物理学 2015-09-24 Gonzalo A. Alvarez , Dieter Suter , Robin Kaiser

The competition between unitary quantum dynamics and dissipative stochastic effects, as emerging from continuous-monitoring processes, can culminate in measurement-induced phase transitions. Here, a many-body system abruptly passes, when…

统计力学 · 物理学 2025-02-04 Moritz Eissler , Igor Lesanovsky , Federico Carollo

We consider a quantum many-body system on a lattice with a continuous symmetry which exhibits a spontaneous symmetry breaking in its infinite volume ground states, but in which the order operator does not commute with the Hamiltonian. A…

统计力学 · 物理学 2009-10-30 Tohru Koma , Hal Tasaki

We experimentally and theoretically investigate the non-equilibrium phase structure of a well-controlled driven-disspative quantum spin system governed by the interplay of coherent driving, spontaneous decay and long-range spin-spin…

原子物理 · 物理学 2018-08-15 S. Helmrich , A. Arias , S. Whitlock

We consider isolated many-body quantum systems which do not thermalize, i.e., expectation values approach an (approximately) steady longtime limit which disagrees with the microcanonical prediction of equilibrium statistical mechanics. A…

统计力学 · 物理学 2017-05-22 Ben N. Balz , Peter Reimann
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