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Non-Markovian transport equations for nuclear large amplitude motion are derived from the collisional kinetic equation. The memory effects are caused by the Fermi surface distortions and depend on the relaxation time. It is shown that the…

核理论 · 物理学 2009-11-07 V. M. Kolomietz , S. V. Radionov , S. Shlomo

We investigate the effect of task ordering on continual learning performance. We conduct an extensive series of empirical experiments on synthetic and naturalistic datasets and show that reordering tasks significantly affects the amount of…

机器学习 · 计算机科学 2022-05-27 Samuel J. Bell , Neil D. Lawrence

We analyze the secular evolution of hierarchical triple systems to second-order in the quadrupolar perturbation induced on the inner binary by the distant third body. The Newtonian three-body equations of motion, expanded in powers of the…

地球与行星天体物理 · 物理学 2021-03-10 Clifford M. Will

In our previous work [J. Chem. Phys. \textbf{136}, 024502 (2012)], we reported a demixing phase transition of a two-dimensional, binary Heisenberg fluid mixture driven by the ferromagnetic interactions of the magnetic species. Here, we…

软凝聚态物质 · 物理学 2015-06-16 Ken Lichtner , Sabine H. L. Klapp

This work introduces the chiral memory effect on the celestial sphere that measures the permanent change of electromagnetic fields by spin-dependent processes in bulk. Unlike the conventional memory effect based on the permanent soft shift…

高能物理 - 理论 · 物理学 2023-07-26 Azadeh Maleknejad

The scaling properties of a phase-ordering system with a conserved order parameter are studied. The theory developed leads to scaling functions satisfying certain general properties including the Tomita sum rule. The theory also gives good…

统计力学 · 物理学 2009-10-31 Gene F. Mazenko

A method of eliminating the memory from the equations of motion of linear viscoelasticity is presented. Replacing the unbounded memory by a quadrature over a finite or semi-finite interval leads to considerable reduction of computational…

天体物理仪器与方法 · 物理学 2014-07-08 Andrzej Hanyga

Conventional wisdom indicates that initial memory should decay away exponentially in time for general (noncritial) equilibration processes. In particular, time-integrated quantities such as heat are presumed to lose initial memory in a…

统计力学 · 物理学 2015-06-11 J. S. Lee , Chulan Kwon , Hyunggyu Park

Dendritic spines, the carriers of long-term memory, occupy a small fraction of cortical space, and yet they are the major consumers of brain metabolic energy. What fraction of this energy goes for synaptic plasticity, correlated with…

神经元与认知 · 定量生物学 2019-10-17 Jan Karbowski

We introduce an efficient dynamical tree method that enables us, for the first time, to explicitly demonstrate thermo-remanent magnetization memory effect in a hierarchical energy landscape. Our simulation nicely reproduces the nontrivial…

无序系统与神经网络 · 物理学 2023-03-21 Depei Zhang , Tianran Chen , Marija Vucelja , Seung-Hun Lee , Gia-Wei Chern

The role of the feedback effect on physical reservoir computing is studied theoretically by solving the vortex-core dynamics in a nanostructured ferromagnet. Although the spin-transfer torque due to the feedback current makes the vortex…

介观与纳米尺度物理 · 物理学 2020-06-25 Terufumi Yamaguchi , Nozomi Akashi , Sumito Tsunegi , Hitoshi Kubota , Kohei Nakajima , Tomohiro Taniguchi

We model a direct solid-state phase transition through a nucleation-and-growth process in which plates have simple, regular shapes - squares, cubes, or square-faced lamellae - and grow homothetically (self-similarly) until they either reach…

统计力学 · 物理学 2026-05-01 F. Tolea , M. Tolea

Stimulated by recent experimental results, we simulate ``temperature''-cycling experiments in a model for the compaction of granular media. We report on the existence of two types of memory effects: short-term dependence on the history of…

软凝聚态物质 · 物理学 2009-10-31 A. Barrat , V. Loreto

The control of antiferromagnetic order can pave the way to large storage capacity as well as fast manipulation of stored data. Here achieving a steady-state of sublattice magnetization after switching is crucial to prevent loss of stored…

材料科学 · 物理学 2025-10-30 Asliddin Khudoyberdiev , Götz S. Uhrig

In studies of the QCD deconfining phase transition or cross-over by means of heavy ion experiments, one ought to be concerned about non-equilibrium effects due to heating and cooling of the system. In this paper we extend our previous study…

高能物理 - 格点 · 物理学 2009-11-10 Bernd A. Berg , Hildegard Meyer-Ortmanns , Alexander Velytsky

In the mammalian brain, newly acquired memories depend on the hippocampus for maintenance and recall, but over time the neocortex takes over these functions, rendering memories hippocampus-independent. The process responsible for this…

神经元与认知 · 定量生物学 2021-07-02 Peter Helfer , Thomas R. Shultz

We analyze the onset of classical field configurations after a phase transition. Firstly, we motivate the problem by means of a toy model in quantum mechanics. Subsequently, we consider a scalar field theory in which the system-field…

高能物理 - 唯象学 · 物理学 2007-05-23 F. C. Lombardo , R. J. Rivers , F. D. Mazzitelli

Non-Markovian quantum processes exhibit different memory effects when measured in different ways; an unambiguous characterization of memory length requires accounting for the sequence of instruments applied to probe the system dynamics.…

量子物理 · 物理学 2019-04-11 Philip Taranto , Simon Milz , Felix A. Pollock , Kavan Modi

We perform a study about effects of an applied magnetic field and a finite chemical potential on the size-dependent phase structure of a first-order transition. These effects are introduced by using methods of quantum fields defined on…

统计力学 · 物理学 2013-05-31 E. B. S. Corrêa , C. A. Linhares , A. P. C. Malbouisson

The initial state of a quantum system can significantly influence its future dynamics, especially in non-Markovain quantum processes due to the environmental memory effects. Based on a previous work of ours, we propose a method to quantify…

量子物理 · 物理学 2024-05-22 S. C. Hou , G. Q. Shuai , X. Y. Zhang , J. Shen , X. X. Yi