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相关论文: Damping and polarization rates in near equilibrium…

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As the core ingredient for spin polarization, the local equilibrium spin distribution function is derived from the detailed balance principle. The kinetic theory for interacting fermionic systems is applied to the Nambu--Jona-Lasinio model…

高能物理 - 理论 · 物理学 2021-09-29 Ziyue Wang , Xingyu Guo , Pengfei Zhuang

The role of dynamical chiral condensate in spin polarization is investigated in a kinetic theory framework. Transport equations for quark matter are derived in the mean-field approximation for the Nambu--Jona-Lasinio model. The dynamical…

高能物理 - 唯象学 · 物理学 2021-01-11 Ziyue Wang , Pengfei Zhuang

The spin polarized charge transport is systematically analyzed as a thermally driven stochastic process. The approach is based on Kramers' equation describing the semiclassical motion under the inclusion of stochastic and damping forces.…

统计力学 · 物理学 2009-11-13 Michael Schulz , Steffen Trimper

The phenomenological equations of motion for the relaxation of ordered phases of magnetized and polarized crystal phases can be developed in close analogy with one another. For the case of magnetized systems, the driving magnetic field…

其他凝聚态物理 · 物理学 2013-05-29 A. Widom , S. Sivasubramanian , C. Vittoria , S. Yoon , Y. N. Srivastava

We calculate the nonequilibrium dynamic evolution of a one-dimensional system of two-component fermionic atoms after a strong local quench by using a time-dependent spin-density-functional theory. The interaction quench is also considered…

强关联电子 · 物理学 2015-05-27 Gao Xianlong

We show that, in ideal-spin hydrodynamics, the components of the spin tensor follow damped wave equations. The damping rate is related to nonlocal collisions of the particles in the fluid, which enter at first order in $\hbar$ in a…

核理论 · 物理学 2025-02-10 David Wagner , Masoud Shokri , Dirk H. Rischke

The linear equations for transverse spin dynamics in weakly polarised degenerate Fermi liquid with arbitrary relationship between temperature and polarization are derived from Landau-Silin phenomenological kinetic equation with general form…

统计力学 · 物理学 2009-11-10 V. P. Mineev

We study the longitudinal spin polarization of a relativistic fluid of massive spin-1/2 particles undergoing a boost-invariant expansion in the longitudinal direction and rotating in the transverse plane. We express the polarization vector…

核理论 · 物理学 2025-03-18 Nora Weickgenannt , Jean-Paul Blaizot

We analyze spin-dependent transport through a spin-diode in the presence of spin-flip and under influence of temperature bias. The current polarization and the spin accumulation are investigated in detail by means of reduced density matrix.…

介观与纳米尺度物理 · 物理学 2012-04-10 M. Bagheri Tagani , H. Rahimpour Soleimani

The influence of temperature and transport conditions on the electron spin relaxation in lightly doped n-type GaAs semiconductors is investigated. A Monte Carlo approach is used to simulate electron transport, including the evolution of…

统计力学 · 物理学 2011-12-20 Stefano Spezia , Dominique Persano Adorno , Nicola Pizzolato , Bernardo Spagnolo

We present a novel relaxation time approximation for kinetic theory with spin which takes into account the nonlocality of particle collisions. In particular, it models the property of the microscopic nonlocal collision term to vanish in…

高能物理 - 唯象学 · 物理学 2025-03-18 Nora Weickgenannt , Jean-Paul Blaizot

We compute the dynamical relaxation times for chiral transport phenomena in strongly coupled regime using the AdS/CFT correspondence. These relaxation times can be a useful proxy for the dynamical time scale for achieving equilibrium…

高能物理 - 理论 · 物理学 2018-09-26 Shiyong Li , Ho-Ung Yee

We present a general unifying theory for spin polarization decay due to the interplay of spin precession and momentum scattering that is applicable to both spin-1/2 electrons and spin-3/2 holes. Our theory allows us to identify and…

介观与纳米尺度物理 · 物理学 2009-11-11 Dimitrie Culcer , Roland Winkler

We revisit the spin effects induced by thermal vorticity by calculating them directly from the spin-dependent distribution functions. For the spin-1/2 particles, we give the polarization up to the first order of thermal vorticity and…

高能物理 - 唯象学 · 物理学 2023-11-17 Jian-Hua Gao , Shi-Zheng Yang

First, I study the analogy between the magnetization of a material and the spin polarization of particles in a fluid. Using the relativistic version of the Barnett effect, i.e. the magnetization of a material induced by mechanical rotation,…

核理论 · 物理学 2023-05-22 Matteo Buzzegoli

In this manuscript, we propose a non-equilibrium temperature by a temperature dependent Vlasov equation for the charge particles transport through a environmental reservoir. A new damping force and a inverse damping relaxation time are…

统计力学 · 物理学 2024-04-26 Zheng-Chuan Wang

We derive relativistic hydrodynamic equations with a dynamical spin degree of freedom on the basis of an entropy-current analysis. The first and second laws of local thermodynamics constrain possible structures of the constitutive relations…

高能物理 - 理论 · 物理学 2019-07-03 Koichi Hattori , Masaru Hongo , Xu-Guang Huang , Mamoru Matsuo , Hidetoshi Taya

Spin-polarized electron transport in diluted magnetic semiconductors (DMS) in the paramagnetic phase is described within the thermoballistic transport model. In this (semiclassical) model, the ballistic and diffusive transport mechanisms…

材料科学 · 物理学 2009-03-16 R. Lipperheide , U. Wille

Thermal fluctuations of nanomagnets driven by spin-polarized currents are treated via the Landau-Lifshitz-Gilbert equation as generalized to include both the random thermal noise field and Slonczewski spin-transfer torque terms. The…

统计力学 · 物理学 2017-09-26 Y. P. Kalmykov , D. Byrne , W. T. Coffey , W. J. Dowling , S. V. Titov , J. E. Wegrowe

The effect of weak localization on spin relaxation in a two-dimensional system with a spin-split spectrum is considered. It is shown that the spin relaxation slows down due to the interference of electron waves moving along closed paths in…

介观与纳米尺度物理 · 物理学 2009-11-10 I. S. Lyubinskiy , V. Yu. Kachorovskii
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