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Discrete time crystals are novel phases of matter that break the discrete time translational symmetry of a periodically driven system. In this work, we propose a classical system of weakly-nonlinear parametrically-driven coupled oscillators…

统计力学 · 物理学 2025-01-31 Stuart Yi-Thomas , Jay D. Sau

We study suspensions of oblate rigid particles in a viscous fluid for different values of the particle volume fractions. Direct numerical simulations have been performed using a direct-forcing immersed boundary method to account for the…

流体动力学 · 物理学 2021-02-23 M. Niazi Ardekani , P. Costa , W. -P. Breugem , F. Picano , L. Brandt

We consider a generalization of the classical nonrelativistic St\"{o}rmer problem, describing the motion of charged particles in a purely magnetic dipole field, by taking into account the effects of the dissipation, assumed to be of…

高能天体物理现象 · 物理学 2026-04-28 Tiberiu Harko , Gabriela Raluca Mocanu

Explicit analytical expressions for the drag and diffusion coefficients of a spherical particle attached to the interface between two immiscible fluids are constructed for the case of a small viscosity ratio between the fluid phases. The…

软凝聚态物质 · 物理学 2016-04-20 Aaron Dörr , Steffen Hardt

Spatial correlation functions provide a glimpse into the quantum correlations within a quantum system. Ions in a linear trap collectively form a nonuniform, discretized background on which a scalar field of phonons propagates. Trapped ions…

量子物理 · 物理学 2009-09-29 Nicolas C. Menicucci , G. J. Milburn

We propose a simple linear scaling expression in reciprocal space for evaluating the ion--electron potential of crystalline solids. The expression replaces the long-range ion--electron potential with an equivalent localized charge…

材料科学 · 物理学 2016-12-21 Xuecheng Shao , Wenhui Mi , Qiang Xu , Yanchao Wang , Yanming Ma

We study slow dynamics of particles moving in a matrix of immobile obstacles using molecular dynamics simulations. The glass transition point decreases drastically as the obstacle density increases. At higher obstacle densities, the…

软凝聚态物质 · 物理学 2009-11-17 Kang Kim , Kunimasa Miyazaki , Shinji Saito

Controlling the spread of correlations in quantum many-body systems is a key challenge at the heart of quantum science and technology. Correlations are usually destroyed by dissipation arising from coupling between a system and its…

量子气体 · 物理学 2022-02-07 Kushal Seetharam , Alessio Lerose , Rosario Fazio , Jamir Marino

We present a derivation of a recently proposed theory for the time dependence of density fluctuations in stationary states of strongly interacting, athermal, self-propelled particles. The derivation consists of two steps. First, we start…

软凝聚态物质 · 物理学 2016-01-13 Grzegorz Szamel

We study the large time behavior of solutions to the system of equations describing motion of compressible viscoelastic fluids. We focus on the linearized system around a motionless state in a three-dimensional exterior domain and derive…

偏微分方程分析 · 数学 2025-05-30 Yusuke Ishigaki , Takayuki Kobayashi

We discuss the spatiotemporal behavior of local density and its relation to dynamical heterogeneity in a highly supercooled liquid by using molecular dynamics simulations of a binary mixture with different particle sizes in two dimensions.…

软凝聚态物质 · 物理学 2015-03-20 Hayato Shiba , Takeshi Kawasaki

The ion-electron coupling properties for a ion impurity in an electron gas and for a two component plasma are carried out on the basis of a regularized electron-ion potential removing the short-range Coulomb divergence. This work is largely…

统计力学 · 物理学 2009-11-07 B Talin , E Dufour , A Calisti , M A Gigosos , M A Gonzalez , T del Rio Gaztelurrutia , J Dufty

The non-linear dynamics of driven oscillations in the size of a spherical bubble are mapped to the dynamics of a Newtonian particle in a potential within the incompressible liquid regime. The compressible liquid regime, which is important…

流体动力学 · 物理学 2024-12-30 Uri Shimon , Ady Stern

A time-dependent inelastic electron transport theory for strong electron-phonon interaction is established via the equations of motion method combined with the small polaron transformation. In this work, the dissipation via electron-phonon…

介观与纳米尺度物理 · 物理学 2015-05-21 Yu Zhang , ChiYung Yam , GuanHua Chen

Using a non-perturbative classical model, we numerically investigate the dynamics of mobile particles interacting with an infinite chain of harmonic oscillators, an abstraction of ionic conduction through solid-state materials. We show that…

介观与纳米尺度物理 · 物理学 2022-05-03 A. Rodin , B. A. Olsen , M. Choi , A. Tan

Planar rotors can be realized by confining molecular ions or charged nanoparticles together with atomic ions in a Paul trap. We study the case of molecular ions or charged nanoparticles that have an electric dipole moment which couples to…

量子物理 · 物理学 2025-04-02 Monika Leibscher , Ferdinand Schmidt-Kaler , Christiane P. Koch

We consider single particle and polymer translocation where the frictional properties experienced from the environment are changing in time. This work is motivated by the interesting frequency responsive behaviour observed when a polymer is…

软凝聚态物质 · 物理学 2012-12-06 Jack A. Cohen , Abhishek Chaudhuri , Ramin Golestanian

The viscosity of glass-forming liquids increases by many orders of magnitude if their temperature is lowered by a mere factor of 2-3 [1,2]. Recent studies suggest that this widespread phenomenon is accompanied by spatially heterogeneous…

无序系统与神经网络 · 物理学 2015-05-28 Walter Kob , Sandalo Roldan-Vargas , Ludovic Berthier

Within the framework of V-T theory of monatomic liquid dynamics, an exact equation is derived for a general equilibrium time correlation function. The purely vibrational contribution to such a function expresses the system's motion in one…

软凝聚态物质 · 物理学 2007-05-23 Eric D. Chisolm , Giulia De Lorenzi-Venneri , Duane C. Wallace

We study the tidal forcing, propagation and dissipation of linear inertial waves in a rotating fluid body. The intentionally simplified model involves a perfectly rigid core surrounded by a deep ocean consisting of a homogeneous…

地球与行星天体物理 · 物理学 2015-05-13 Gordon I. Ogilvie