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相关论文: Dynamics and Thermodynamics of a model with long-r…

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Systems with long-range interactions display a short-time relaxation towards Quasi Stationary States (QSSs) whose lifetime increases with system size. The application of Lynden-Bell's theory of "violent relaxation" to the Hamiltonian Mean…

统计力学 · 物理学 2015-05-13 F. Staniscia , P. H. Chavanis , G. De Ninno , D. Fanelli

In quantum many-body theory no generic microscopic principle at the origin of complex dynamics is known. Quite opposed, in classical mechanics the theory of non-linear dynamics provides a detailed framework for the distinction between…

数学物理 · 物理学 2013-11-06 Peter Barmettler , Davide Fioretto , Vladimir Gritsev

Quantum field theory (QFT) on non-stationary spacetimes is well understood from the side of the algebra of observables. The state space, however, is largely unexplored, due to the non-existence of distinguished states (vacuum, scattering…

广义相对论与量子宇宙学 · 物理学 2018-09-25 Klaus Fredenhagen , Thomas-Paul Hack , Nicola Pinamonti

Systems subject to a high-frequency drive can spend an exponentially long time in a prethermal regime, in which novel phases of matter with no equilibrium counterpart can be realized. Due to the notorious computational challenges of quantum…

量子物理 · 物理学 2021-09-29 Andrea Pizzi , Andreas Nunnenkamp , Johannes Knolle

We consider a Hamiltonian system made of $N$ classical particles moving in two dimensions, coupled via an {\it infinite-range interaction} gauged by a parameter $A$. This system shows a low energy phase with most of the particles trapped in…

统计力学 · 物理学 2009-11-07 Mickael Antoni , Stefano Ruffo , Alessandro Torcini

We show that the zeroth principle of thermodynamics applies to aging quasistationary states of long-range interacting $N$-body Hamiltonian systems. We also discuss the measurability of the temperature in these out-of-equilibrium states…

统计力学 · 物理学 2007-05-23 Luis G. Moyano , Fulvio Baldovin , Constantino Tsallis

We develop the kinetic theory of Hamiltonian systems with weak long-range interactions. Starting from the Klimontovich equation and using a quasilinear theory, we obtain a general kinetic equation that can be applied to spatially…

统计力学 · 物理学 2009-11-13 Pierre-Henri Chavanis

We numerically study the one-dimensional long-range Transverse Field Ising Model (TFIM) in the antiferromagnetic (AFM) regime at zero temperature using Generalized Hartree-Fock (GHF) theory. The spin-spin interaction extends to all spins in…

量子物理 · 物理学 2023-05-10 Michael P. Kaicher , Davide Vodola , Simon B. Jäger

We briefly review some equilibrium and nonequilibrium properties of systems with long-range interactions. Such systems, which are characterized by a potential that weakly decays at large distances, have striking properties at equilibrium,…

统计力学 · 物理学 2009-11-13 Stefano Ruffo

Sometimes the dynamics of a physical system is described by non-Hamiltonian equations of motion, and additionally, the system is characterized by long-range interactions. A concrete example is that of particles interacting with light as…

统计力学 · 物理学 2022-11-15 Alessandro Campa , Shamik Gupta

Experimental progress in atomic, molecular, and optical platforms in the last decade has stimulated strong and broad interest in the quantum coherent dynamics of many long-range interacting particles. The prominent collective character of…

量子气体 · 物理学 2024-05-30 Nicolò Defenu , Alessio Lerose , Silvia Pappalardi

Exact and approximate expressions for thermodynamic characteristics of heated matter, which consists of particles with finite mass-widths, are constructed. They are expressed in terms of Fermi/Bose distributions and spectral functions,…

核理论 · 物理学 2008-11-26 D. N. Voskresensky

The core-halo approach of Levin et al.\ [Phys.\ Rep.\ {\bf 535}, 1 (2014)] for the violent relaxation of long-range interacting systems with a waterbag initial conditions is revisited for the case of the Hamiltonian Mean Field model. The…

统计力学 · 物理学 2016-01-12 T. M. Rocha Filho

We solve the attractive Hubbard model for arbitrary interaction strengths within dynamical mean-field theory. We compute the transition temperature for superconductivity and analyze electron pairing in the normal phase. The normal state is…

强关联电子 · 物理学 2009-11-07 M. Keller , W. Metzner , U. Schollwoeck

A simple and very flexible variational approach to the out-of-equilibrium quantum dynamics in strongly correlated electron systems is introduced through a time-dependent Gutzwiller wavefunction. As an application, we study the simple case…

强关联电子 · 物理学 2010-09-10 Marco Schiró , Michele Fabrizio

The Hamiltonian dynamics of the classical $\phi^4$ model on a two-dimensional square lattice is investigated by means of numerical simulations. The macroscopic observables are computed as time averages. The results clearly reveal the…

统计力学 · 物理学 2008-11-26 Lando Caiani , Lapo Casetti , Marco Pettini

For the dynamical glassy transition in the $p$-spin mean field spin glass model a thermodynamic description is given. The often considered marginal states are not the relevant ones for this purpose. This leads to consider a cooling…

无序系统与神经网络 · 物理学 2009-10-30 Th. M. Nieuwenhuizen

We study the entanglement dynamics of thermofield double (TFD) states in integrable spin chains and quantum field theories. We show that, for a natural choice of the Hamiltonian eigenbasis, the TFD evolution may be interpreted as a quantum…

高能物理 - 理论 · 物理学 2022-05-12 Gianluca Lagnese , Pasquale Calabrese , Lorenzo Piroli

We study a periodically driven macrospin system with anisotropic long-range interactions and collective dissipation, described by a Lindblad master equation. In the thermodynamic limit ($N\to\infty$), a mean-field treatment yields classical…

量子物理 · 物理学 2026-01-05 Haowei Fan , Vladimir Fal'ko , Xiao Li

In recent years, there have been important advances in understanding the far-from-equilibrium dynamics in different physical systems. In ultra-relativistic heavy-ion collisions, the combination of different methods led to the development of…

高能物理 - 唯象学 · 物理学 2018-11-20 Kirill Boguslavski