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相关论文: Soft Manifold Dynamics Behind Negative Thermal Exp…

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Turbulent transport driven by trapped electron modes (TEMs) is believed to drive significant heat and particle transport in quasihelically symmetric stellarators. Two three-dimensionally-shaped magnetic configurations with suppressed…

等离子体物理 · 物理学 2024-12-30 J. M. Duff , B. J. Faber , C. C. Hegna , M. J. Pueschel , P. W. Terry

A novel transport phenomenon is identified that is induced by inertial Brownian particles which move in simple one-dimensional, symmetric periodic potentials under the influence of both a time periodic and a constant, biasing driving force.…

软凝聚态物质 · 物理学 2007-06-13 L. Machura , M. Kostur , P. Talkner , J. Luczka , P. Hanggi

Nonlinearity of magneto-dynamics is typically described by a single constant, $\mathcal{N}$, with positive and negative values indicating repulsion and attraction of magnons, respectively. In thin magnetic films with easy-plane magnetic…

介观与纳米尺度物理 · 物理学 2018-04-06 Mykola Dvornik , Johan Åkerman

We calculate the phonon thermal conductivity of various moir\'e bilayer systems using a continuum approach and the semiclassical transport theory. When the twist angle is close to 0, we observe a significant reduction of thermal…

介观与纳米尺度物理 · 物理学 2025-03-11 Lukas P. A. Krisna , Takuto Kawakami , Mikito Koshino

We present a detailed, two dimensional numerical study of the microphysical conditions and dynamical evolution of accretion disks around black holes when neutrino emission is the main source of cooling. Such structures are likely to form…

天体物理学 · 物理学 2009-11-11 William H. Lee , Enrico Ramirez-Ruiz , Dany Page

A thermodynamically motivated neural network model is described that self-organizes to transport charge associated with internal and external potentials while in contact with a thermal reservoir. The model integrates techniques for rapid,…

神经元与认知 · 定量生物学 2020-04-22 Todd Hylton

The paper investigates the general case of incompressible non-classical elasticity with small deformations and rotations. It is shown that the internal spin rotations are important only when a specific Born term is presented in the free…

软凝聚态物质 · 物理学 2007-05-23 A. I. Leonov , V. S. Volkov

The origin of room temperature (RT) ferromagnetism (FM) in Ni doped ZnO samples are systematically investigated through physical, optical, and magnetic properties of nanostructure, prepared by simple low-temperature wet chemical method.…

The interactions of tiny objects with their environment are dominated by thermal fluctuations. Guided by theory and assisted by micromanipulation tools, scientists have begun to study such interactions in detail.

统计力学 · 物理学 2009-11-11 C. Bustamante , J. Liphardt , F. Ritort

If the large scale anomalies in the temperature power spectrum of the cosmic microwave background are of primordial origin, they may herald modifications to the slow roll inflationary paradigm on the largest scales. We study the possibility…

宇宙学与河外天体物理 · 物理学 2014-03-28 Louis Lello , Daniel Boyanovsky , Richard Holman

Predicting nanoscale thermal transport in dielectrics requires models, such as the Boltzmann transport equation (BTE), that account for phonon boundary scattering in structures with complex geometries. Although the BTE has been validated…

材料科学 · 物理学 2023-08-03 S. Aria Hosseini , Alex Greaney , Giuseppe Romano

The controversial existence of negative temperatures has stirred interesting debates that have reached the foundations of thermodynamics, including questions on the second law, the Carnot efficiency and the statistical definition of…

统计力学 · 物理学 2019-06-26 Salvatore Calabrese , Amilcare Porporato

The momentum distribution of particle production in heavy-ion collisions encodes information about thermalization processes in the early-stage quark-gluon plasma. We use kinetic theory to study the far-from-equilibrium evolution of an…

核理论 · 物理学 2022-12-05 Jasmine Brewer , Weiyao Ke , Li Yan , Yi Yin

Low-energy effective theories provide the natural description of four-dimensional physics in higher-dimensional geometries, where the imprint of the bulk appears as parameters of the lower dimensional theory. Motivated by the recent…

高能物理 - 理论 · 物理学 2026-03-11 Soham Bhattacharyya , Soumitra SenGupta

In this work, we study some thermodynamical aspects associated with torsion in a flat FLRW spacetime cosmic evolution. By implementing two Ansatze for the torsion term, we find that the model admits a phantom regime or a quintessence…

广义相对论与量子宇宙学 · 物理学 2020-06-26 Miguel Cruz , Fernando Izaurieta , Samuel Lepe

Black hole binaries show equatorial disc winds at high luminosities, which apparently disappear during the spectral transition to the low/hard state. This is also where the radio jet appears, motivating speculation that both wind and jet…

高能天体物理现象 · 物理学 2018-11-21 Chris Done , Ryota Tomaru , Tad Takahashi

Alternative approach for description of the non-equilibrium phenomena arising in solids at a severe external loading is analyzed. The approach is based on the new form of kinetic equations in terms of the internal and modified free energy.…

统计力学 · 物理学 2014-08-27 L. S. Metlov

Homeotropic Nematic Liquid Crystal heated from above present convective Rayleigh-Benard instability for applied thermal gradients greater than $\Delta$Tc. This threshold increase with the intensity of applied external magnetic field…

流体动力学 · 物理学 2013-11-19 I. Bove , J. Salán

Epithelial cell tissues have a slow relaxation dynamics resembling that of supercooled liquids. Yet, they also have distinguishing features. These include an extended short-time sub-diffusive transient, as observed in some experiments and…

软凝聚态物质 · 物理学 2021-02-17 Yan-Wei Li , Leon Loh Yeong Wei , Matteo Paoluzzi , Massimo Pica Ciamarra

The density response of supercooled glycerol to an impulsive stimulated thermal grating (q=0.63 micron^-1) has been studied in the temperature range (T=200-340 K) where the structure rearrangement (alpha-relaxation) and thermal diffusion…

无序系统与神经网络 · 物理学 2009-11-07 R. Di Leonardo , A. Taschin , M. Sampoli , R. Torre , G. Ruocco