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Strongly confined colloidal dispersions under shear can exhibit a variety of dynamical phenomena, including depinning transitions and complex structural changes. Here, we investigate the behaviour of such systems under pure oscillatory…

软凝聚态物质 · 物理学 2023-01-25 Marcel Hülsberg , Sabine H. L. Klapp

We study a tripartite system of coupled spins, where a first set of one or two spins is our central system which is coupled to another set considered, the near environment, in turn coupled to the third set, the far environment. The dynamics…

量子物理 · 物理学 2016-07-06 C. González-Gutiérrez , E. Villaseñor , C. Pineda , T. H. Seligman

We study a model for the depinning and driven steady state phases of a solid tuned across a polymorphic phase transition between ground states of triangular and square symmetry. These include pinned states which may have dominantly…

超导电性 · 物理学 2015-05-14 Ankush Sengupta , Surajit Sengupta , Gautam I. Menon

We study the fate of the 2d kinetic q-state Potts model after a sudden quench to zero temperature. Both ground states and complicated static states are reached with non-zero probabilities. These outcomes resemble those found in the quench…

统计力学 · 物理学 2014-01-03 J. Olejarz , P. L. Krapivsky , S. Redner

Recent work has demonstrated a new route to discrete time crystal physics in quantum spin chains by periodically driving nearest-neighbor exchange interactions in gate-defined quantum dot arrays [arXiv:2006.10913]. Here, we present a…

介观与纳米尺度物理 · 物理学 2021-06-09 John S. Van Dyke , Yadav P. Kandel , Haifeng Qiao , John M. Nichol , Sophia E. Economou , Edwin Barnes

We consider a model of discretized 2d gravity interacting with Ising spins where phase boundaries are restricted to have minimal length and show analytically that the critical exponent $\gamma= 1/3$ at the spin transition point. The model…

高能物理 - 理论 · 物理学 2015-06-26 J. Ambjorn , B. Durhuus , T. Jonsson

We study the low temperature out of equilibrium Monte Carlo dynamics of the disordered Ising $p$-spin Model with $p=3$ and a small number of spin variables. We focus on sequences of configurations that are stable against single spin flips…

无序系统与神经网络 · 物理学 2020-08-28 Daniel A. Stariolo , Leticia F. Cugliandolo

We establish rigorously that transport is slower than diffusive for a class of disordered one-dimensional Hamiltonian chains. This is done by deriving quantitative bounds on the variance in equilibrium of the energy or particle current, as…

数学物理 · 物理学 2020-02-25 Wojciech De Roeck , Francois Huveneers , Stefano Olla

We consider the non-equilibrium dynamics of a driven dissipative spin chain with chiral coupling to a 1D bosonic bath, and its atomic implementation with a two-species mixture of cold quantum gases. The reservoir is represented by a…

量子物理 · 物理学 2014-12-09 Tomás Ramos , Hannes Pichler , Andrew J. Daley , Peter Zoller

We study the relaxation of the bi-dimensional kinetically constrained spiral model. We show that due to the reversibility of the dynamic rules any unblocked state fully decorrelates in finite times irrespectively of the system being in the…

统计力学 · 物理学 2009-09-28 Federico Corberi , Leticia F. Cugliandolo

The studies of this paper on the spin-1/2 XXZ chain at finite temperatures T>0 have two complementary goals. The first is to identify the spin carriers of all its Sq>0 energy eigenstates and to show that their spin elementary currents fully…

强关联电子 · 物理学 2025-02-18 Jose M. P. Carmelo , Pedro D. Sacramento

We present numerical results for the spin and thermal conductivity of one-dimensional (1D) quantum spin systems. We contrast the properties of integrable models such as the spin-1/2 XXZ chain against nonintegrable ones such as frustrated…

强关联电子 · 物理学 2008-01-09 F. Heidrich-Meisner , A. Honecker , W. Brenig

Driven many-body quantum systems where some parameter in the Hamiltonian is varied quasiperiodically in time may exhibit nonequilibrium steady states that are qualitatively different from their periodically driven counterparts. Here we…

强关联电子 · 物理学 2018-12-27 Sourav Nandy , Arnab Sen , Diptiman Sen

We show that, when a finite anisotropic Heisenberg spin-1/2 chain in the gapped regime is driven far from equilibrium, oppositely polarized ferromagnetic domains build up at the edges of the chain, thus suppressing quantum spin transport.…

强关联电子 · 物理学 2009-02-03 Giuliano Benenti , Giulio Casati , Tomaz Prosen , Davide Rossini

Using Random Phase Approximation, we show that a crossed-chains model of a spin-1/2 Heisenberg spins, with frustrated interchain couplings, has a non-dimerized spin-liquid ground state in 2D, with deconfined spinons as the elementary…

强关联电子 · 物理学 2009-11-07 Oleg A. Starykh , Rajiv R. P. Singh , Gregory C. Levine

We consider a one-dimensional Ising model each of whose $N$ spins is in contact with two thermostats of distinct temperatures $T_1$ and $T_2$. Under Glauber dynamics the stationary state happens to coincide with the equilibrium state at an…

统计力学 · 物理学 2017-04-26 F. Cornu , H. J. Hilhorst

We studied the dynamic response and stochastic resonance of kinetic Ising spin system (ISS), subject to the joint external field of weak sinusoidal modulation and stochastic white-noise, through solving the mean-field equation of motion…

统计力学 · 物理学 2009-11-10 Y. Z. Shao , W. R. Zhong , G. M. Lin , J. C. Li

We investigate the time evolution of the density of kinks in the spin-1/2 quantum Ising spin chain after a sudden quench in the transverse field strength, and find that it relaxes to a value which depends on the initial and the final values…

统计力学 · 物理学 2009-10-22 Sei Suzuki , Davide Rossini , Giuseppe E. Santoro

A few paradigmatic one-dimensional lattice-statistical spin models have recently attracted a vigorous scientific interest owing to their peculiar thermodynamic behavior, which is highly reminiscent of a temperature-driven phase transition.…

统计力学 · 物理学 2020-08-17 Jozef Strecka

We investigate the motion of a tagged spin in a ferromagnetic Ising chain evolving under Kawasaki dynamics. At equilibrium, the displacement is Gaussian, with a variance growing as $A t^{1/2}$. The temperature dependence of the prefactor…

统计力学 · 物理学 2009-11-10 C. Godrèche , J. M. Luck
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