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相关论文: Scrambling under quench

200 篇论文

We give an overview of the scaling of density of quasi-particles and excess energy (heat) for nearly adiabatic dynamics near quantum critical points (QCPs). In particular we discuss both sudden quenches of small amplitude and slow sweeps…

统计力学 · 物理学 2010-05-19 Vladimir Gritsev , Anatoli Polkovnikov

Spatiotemporal quenches are efficient at preparing ground states of critical Hamiltonians that have emergent low-energy descriptions with Lorentz invariance. The critical transverse field Ising model with nearest neighbor interactions, for…

量子气体 · 物理学 2023-08-09 Simon Bernier , Kartiek Agarwal

We study the out-of-equilibrium dynamics of $p$-wave superconducting quantum wires with long-range interactions, when the chemical potential is linearly ramped across the topological phase transition. We show that the heat produced after…

量子物理 · 物理学 2019-11-27 Nicolò Defenu , Giovanna Morigi , Luca Dell'Anna , Tilman Enss

We examine the dynamics of a correlated quantum dot in the mixed valence regime. We perform numerically exact calculations of the current after a quantum quench from equilibrium by rapidly applying a bias voltage in a wide range of initial…

强关联电子 · 物理学 2016-01-27 Andrey E. Antipov , Qiaoyuan Dong , Emanuel Gull

We present an exact and fully analytical treatment of the entanglement dynamics for an isolated system of $N$ coupled oscillators following a sudden quench of the system parameters. The system is analyzed using the solutions of the time…

量子物理 · 物理学 2018-02-28 Supriyo Ghosh , Kumar S. Gupta , Shashi C. L. Srivastava

Dynamics of quenching temperature is studied in pure and random Ising chains. Using the Kibble-Zurek argument, we obtain for the pure Ising model that the density of kinks after quenching decays as 1/\sqrt{\tau} with the quench rate of…

无序系统与神经网络 · 物理学 2009-11-13 Sei Suzuki

We study the behavior of the defect and heat densities under sudden quenching near the quantum critical points in the two-dimensional Kitaev honeycomb model both in the thermodynamic and non-thermodynamic limits. We consider quenches…

统计力学 · 物理学 2012-11-29 Aavishkar A. Patel , Amit Dutta

We study the universality of work statistics performed during a quench in gapless quantum systems. We show that the cumulants of work scale separately in the fast and slow quench regimes, following a power law analogous to the universal…

量子物理 · 物理学 2025-11-21 Donny Dwiputra , Mir Faizal , Francesco Marino , Freddy P. Zen

We explore the robustness of universal dynamical scaling behavior in a quantum system near criticality with respect to initialization in a large class of states with finite energy. By focusing on a homogeneous XY quantum spin chain in a…

统计力学 · 物理学 2015-05-20 Shusa Deng , Gerardo Ortiz , Lorenza Viola

We predict the emergence of turbulent scaling in the quench dynamics of the two-dimensional Heisenberg model for a wide range of initial conditions and model parameters. In the isotropic Heisenberg model, we find that the spin-spin…

统计力学 · 物理学 2021-08-11 Joaquin F. Rodriguez-Nieva

To sensitively test scaling in the 2D XY model quenched from high-temperatures into the ordered phase, we study the difference between measured correlations and the (scaling) results of a Gaussian-closure approximation. We also directly…

统计力学 · 物理学 2009-10-31 F. Rojas , A. D. Rutenberg

A recent work [Phys. Rev. Lett. 125, 110602] showed that among a pair of \textit{thermodynamically} equidistant quenches from a colder and a hotter initial state at a fixed ambient temperature, the relaxation from the colder initial state…

量子物理 · 物理学 2021-11-30 Sreekanth K Manikandan

We numerically investigate heating-and-cooling quenches taking place entirely in the non-ordered phase of the discrete Gross-Pitaevskii equation on a three-dimensional cubic lattice. In equilibrium, this system exhibits a U(1)-ordering…

量子气体 · 物理学 2022-11-30 Andrei E. Tarkhov , A. V. Rozhkov , Boris V. Fine

We study global quantum quenches in a continuous field theoretic system with UV fixed point. Assuming that the characteristic inverse time scale of the smooth quench is much larger than all scales inherent to the system except for the…

高能物理 - 理论 · 物理学 2018-08-01 Mikhail Goykhman , Tom Shachar , Michael Smolkin

We consider a quantum quench in the spin-1/2 Heisenberg XXZ chain. At late times after the quench it is believed that the expectation values of local operators approach time-independent values, that are described by a generalized Gibbs…

统计力学 · 物理学 2013-07-31 Maurizio Fagotti , Fabian H. L. Essler

We examine in detail the relationship between smooth fast quantum quenches, characterized by a time scale $\delta t$, and {\em instantaneous quenches}, within the framework of exactly solvable mass quenches in free scalar field theory. Our…

高能物理 - 理论 · 物理学 2015-09-30 Sumit R. Das , Damián A. Galante , Robert C. Myers

The conductance in Coulomb blockade quantum dots exhibits sharp peaks whose spacings fluctuate with the number of electrons. We derive the temperature-dependence of these fluctuations in the statistical regime and compare with recent…

介观与纳米尺度物理 · 物理学 2009-10-31 Y. Alhassid , S. Malhotra

The short-time evolution of two distinct systems, the pump and probe experiments with semiconductor and the sudden quench of cold atoms in an optical lattice, is found to be described by the same universal response function. This analytic…

强关联电子 · 物理学 2015-12-07 K. Morawetz

We study the nonequilibrium dynamics of the Quantum Ising Model following an abrupt quench of the transverse field. We focus on the on-site autocorrelation function of the order parameter, and extract the phase coherence time…

统计力学 · 物理学 2009-03-27 Davide Rossini , Alessandro Silva , Giuseppe Mussardo , Giuseppe Santoro

The generalized Gibbs ensemble introduced for describing few body correlations in exactly solvable systems following a quantum quench is related to the nonergodic way in which operators sample, in the limit of infinite time after the…

统计力学 · 物理学 2012-02-13 Miguel A. Cazalilla , A. Iucci , Ming-Chiang Chung