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We study the correlation function of middle spins, i. e. of spins on intermediate sites between two adjacent parallel lattice axes, of the spatially anisotropic Ising antiferromagnet on the kagome lattice. It is given rigorously by a…

统计力学 · 物理学 2015-05-28 Walter Apel , Hans-Ulrich Everts

A model of an autonomous three-sphere microswimmer is proposed by implementing a coupling effect between the two natural lengths of an elastic microswimmer. Such a coupling mechanism is motivated by the previous models for synchronization…

软凝聚态物质 · 物理学 2021-05-26 Katsutomo Era , Yuki Koyano , Yuto Hosaka , Kento Yasuda , Hiroyuki Kitahata , Shigeyuki Komura

A model of soft frictionless disks in two dimensions at zero temperature is simulated with a shearing dynamics to study various kinds of asymmetries in sheared systems. We examine both single particle properties, the spatial velocity…

软凝聚态物质 · 物理学 2015-03-17 Peter Olsson

We investigate the time evolution of a classical ensemble of isolated periodic chains of O(N)-symmetric anharmonic oscillators. Our method is based on an exact evolution equation for the time dependence of correlation functions. We discuss…

高能物理 - 唯象学 · 物理学 2016-08-25 Gian Franco Bonini , Christof Wetterich

We apply correlation analysis to random fields in numerical simulations of the supernova-driven interstellar medium (ISM) with the magnetic field produced by dynamo action. We solve the thermo-magnetohydrodynamic (MHD) equations in a…

星系天体物理 · 物理学 2017-11-29 James F. Hollins , Graeme R. Sarson , Anvar Shukurov , Andrew Fletcher , Frederick A. Gent

We analyze an electronic nanoscale thermal machine driven by time-dependent environment: besides bias and gate voltage variations, we consider also the less prevailing time modulation of the couplings between leads and dot. We provide…

介观与纳米尺度物理 · 物理学 2016-01-18 A. -M. Daré , P. Lombardo

We derive a variational expression for the correlation time of physical observables in steady-state diffusive systems. As a consequence of this variational expression, we obtain lower bounds on the correlation time, which provide speed…

统计力学 · 物理学 2023-03-24 Andreas Dechant , Jerome Garnier-Brun , Shin-ichi Sasa

Nonreciprocal transport phenomena indicate that the forward and backward flows differ, and are attributed to broken inversion symmetry. In this paper, we study the nonreciprocity of a thermal and thermoelectric transport of electronic…

介观与纳米尺度物理 · 物理学 2019-03-13 Ryota Nakai , Naoto Nagaosa

The model of thermal rectifier based on the asymmetry of interaction of the molecular chain ends with thermostats is proposed in this work. The rectification mechanism is not related to the chain asymmetry, but to the asymmetry of the…

介观与纳米尺度物理 · 物理学 2019-12-25 Alexander V. Savin

We examine fluctuations of vorticity inside the coherent vortex, appearing as a consequence of the inverse energy cascade in two-dimensional turbulence. Temporal and spacial correlations can be characterized by the pair correlation…

流体动力学 · 物理学 2024-03-07 Igor V. Kolokolov , Vladimir V. Lebedev , Mariya M. Tumakova

We study the rheological signatures of departure from equilibrium in two-dimensional viscous fluids with and without internal spin. Under the assumption of isotropy, we provide the most general linear constitutive relations for stress and…

统计力学 · 物理学 2020-06-24 Jeffrey M. Epstein , Kranthi K. Mandadapu

Thermal correlation functions and the associated effective statistical potential are computed in two- and three-dimensional non-commutative space using an operator formulation that makes no reference to a star product. The corresponding…

高能物理 - 理论 · 物理学 2015-06-16 Yendrembam Chaoba Devi , Kumar Jang Bahadur Ghosh , Biswajit Chakraborty , Frederik Scholtz

Time-dependent correlation functions of (unstable) particles undergoing biased or unbiased diffusion, coagulation and annihilation are calculated. This is achieved by similarity transformations between different stochastic models and…

凝聚态物理 · 物理学 2009-10-28 Malte Henkel , Enzo Orlandini , Gunter M. Schütz

We consider an isothermal machine composed of two Brownian particles (say particle A and B) connected by a harmonic spring. A constant load is attached to particle A, and the particle B is trapped in a harmonic confinement whose minimum is…

统计力学 · 物理学 2018-08-01 Deepak Gupta

Thermodynamic uncertainty relation, quantifying a trade-off among average current, the associated fluctuation (precision), and entropy production (cost), has been formulated in nonequilibrium steady state and various stochastic systems.…

介观与纳米尺度物理 · 物理学 2022-03-31 Jincheng Lu , Zi Wang , Jiebin Peng , Chen Wang , Jian-Hua Jiang , Jie Ren

Odd materials feature antisymmetric response to perturbations. This anomalous property can stem from the nonequilibrium activity of their components, which is sustained by an external energy supply. These materials open the door to…

统计力学 · 物理学 2022-01-03 Étienne Fodor , Anton Souslov

We theoretically consider Fermi surface anomalies manifesting in the temperature dependent quasiparticle properties of two-dimensional (2D) interacting electron systems, comparing and contrasting with the corresponding 3D Fermi liquid…

统计力学 · 物理学 2021-06-01 Donovan Buterakos , DinhDuy Vu , Jiabin Yu , Sankar Das Sarma

We generalize the odd elasticity of planar materials to thermoelasticity, admitting spatially inhomogeneous properties. First, we show that for active systems breaking Onsager relations thermal evolution is given by an odd generalization of…

软凝聚态物质 · 物理学 2024-02-23 Martin Ostoja-Starzewski , Piotr Surówka

An irreversible thermodynamical theory of solids is presented where the kinematic quantities are defined in an automatically objective way. Namely, auxiliary elements like reference frame, reference time and reference configuration are…

经典物理 · 物理学 2015-12-22 Tamás Fülöp

Consider anomalous energy spread in solid phases, i.e., $MSD= \int (x -{< x >}_E)^2 \rho_E(x,t)dx \propto t^{\beta}$, as induced by a small initial excess energy perturbation distribution $\rho_{E}(x,t=0)$ away from equilibrium. The…

统计力学 · 物理学 2015-06-16 Sha Liu , Peter Hänggi , Nianbei Li , Jie Ren , Baowen Li