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Generalized hydrodynamics (GHD) is a recent theoretical approach that is becoming a go-to tool for characterizing out-of-equilibrium phenomena in integrable and near-integrable quantum many-body systems. Here, we benchmark its performance…

量子气体 · 物理学 2024-04-23 R. S. Watson , S. A. Simmons , K. V. Kheruntsyan

The generalized hydrodynamic (GHD) approach has been extremely successful in describing the out-of-equilibrium properties of a great variety of integrable many-body quantum systems. It naturally extracts the large-scale dynamical degrees of…

高能物理 - 理论 · 物理学 2021-08-30 Olalla A. Castro-Alvaredo , Cecilia De Fazio , Benjamin Doyon , Francesco Ravanini

An algorithm for simulating self-gravitating cosmological astrophysical fluids is presented. The advantages include a large dynamic range, parallelizability, high resolution per grid element and fast execution speed. The code is based on a…

天体物理学 · 物理学 2009-10-30 Ue-Li Pen

When the Debye length is not resolved in a simulation using the most common particle-in-cell (PIC) algorithm, the plasma will unphysically heat until the Debye length becomes resolved via a phenomenon known as grid heating. This article…

等离子体物理 · 物理学 2025-09-18 Luke C Adams , Gregory R Werner , John R Cary

Segregation induced by a thermal gradient of an impurity in a driven low-density granular gas is studied. The system is enclosed between two parallel walls from which we input thermal energy to the gas. We study here steady states occurring…

统计力学 · 物理学 2014-05-15 Francisco Vega Reyes , Vicente Garzó , Nagi Khalil

Generalized hydrodynamics (GHD) is a large-scale theory for the dynamics of many-body integrable systems. It consists of an infinite set of conservation laws for quasi-particles traveling with effective ("dressed") velocities that depend on…

统计力学 · 物理学 2018-01-19 Benjamin Doyon , Herbert Spohn , Takato Yoshimura

Chemical thermodynamic models of solvent and solute activities predict the equilibrium behaviour of aqueous solutions. How-ever, these models are semi-empirical. They represent micro-scale ion and solvent behaviours that control the…

化学物理 · 物理学 2022-01-26 Xiangwen Wang , Simon L. Clegg , Devis Di Tommaso

Considering the computation complexity, we propose a Guided Hybrid Quantization with One-to-one Self-Teaching (GHOST}) framework. More concretely, we first design a structure called guided quantization self-distillation (GQSD), which is an…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Jiaqing Zhang , Jie Lei , Weiying Xie , Yunsong Li , Xiuping Jia

Dust plays a key role in the evolution of the ISM and its correct modelling in numerical simulations is therefore fundamental. We present a new and self-consistent model that treats grain thermal coupling with the gas, radiation balance,…

星系天体物理 · 物理学 2017-01-25 T. Grassi , S. Bovino , T. Haugboelle , D. R. G. Schleicher

Generalized Hydrodynamics (GHD) has recently been devised as a method to solve the dynamics of integrable quantum many-body systems beyond the mean-field approximation. In its original form, a major limitation is the inability to predict…

Gas-grain and gas-phase reactions dominate the formation of molecules in the interstellar medium (ISM). Gas-grain reactions require a substrate (e.g. a dust or ice grain) on which the reaction is able to occur. The formation of molecular…

星系天体物理 · 物理学 2016-11-09 John L. Dupuy , Steven P. Lewis , P. C. Stancil

The theory of generalized hydrodynamics (GHD) was recently developed as a new tool for the study of inhomogeneous time evolution in many-body interacting systems with infinitely many conserved charges. In this letter, we show that it…

统计力学 · 物理学 2017-11-15 Benjamin Doyon , Jérôme Dubail , Robert Konik , Takato Yoshimura

We propose a method for the numerical solution of a multiscale model describing sorption kinetics of a surfactant around an oscillating bubble. The evolution of the particles is governed by a convection-diffusion equation for the surfactant…

数值分析 · 数学 2023-07-11 Clarissa Astuto , Armando Coco , Giovanni Russo

Water plays a fundamental role in the structure and function of proteins and other biomolecules. The thermodynamic profile of water molecules surrounding a protein are critical for ligand binding and recognition. Therefore, identifying the…

生物大分子 · 定量生物学 2024-11-26 Florian B. Hinz , Matthew R. Masters , Julia N. Kieu , Amr H. Mahmoud , Markus A. Lill

This survey intends to present the basic notions of Geometric Invariant Theory (GIT) through its paradigmatic application in the construction of the moduli space of holomorphic vector bundles. Special attention is paid to the notion of…

代数几何 · 数学 2019-10-28 Alfonso Zamora , Ronald A. Zúñiga-Rojas

We address the investigation of the solvation properties of the minimal orientational model for water, originally proposed by Bell and Lavis. The model presents two liquid phases separated by a critical line. The difference between the two…

统计力学 · 物理学 2015-06-05 Marcia M. Szortyka , Carlos E. Fiore , Marcia C. Barbosa , Vera B. Henriques

We study closed dense collections of hard spheres that collide inelastically with constant coefficient of normal restitution. We find inhomogeneous states (IS) where the density profile is spatially non-uniform but constant in time. The…

混沌动力学 · 物理学 2014-02-19 Itzhak Fouxon

Relativistic dissipative hydrodynamic equations are extended by taking into account particle number changing processes in a gluon system, which expands in one dimension boost-invariantly. Chemical equilibration is treated by a rate equation…

核理论 · 物理学 2010-11-23 Andrej El , Azwinndini Muronga , Zhe Xu , Carsten Greiner

The authors present a study of the non equilibrium statistical properties of a one dimensional hard-rod fluid dissipating energy via inelastic collisions and subject to the action of a Gaussian heat bath, simulating an external driving…

材料科学 · 物理学 2009-11-13 Umberto Marini-Bettolo-Marconi , Pedro Tarazona , Fabio Cecconi

Generalised Hydrodynamics (GHD) describes the large-scale inhomogeneous dynamics of integrable (or close to integrable) systems in one dimension of space, based on a central equation for the fluid density or quasi-particle density: the GHD…

斑图形成与孤子 · 物理学 2025-04-25 Thibault Bonnemain , Vincent Caudrelier , Benjamin Doyon
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