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Motivated by the key role of shear induced polarization in understanding the local spin polarization puzzle of $\Lambda$ hyperons in heavy ion collisions, we perform a complete analysis of spin polarization of massive fermion in a quantum…

高能物理 - 唯象学 · 物理学 2024-12-02 Ziyue Wang , Shu Lin

The dynamical evolution of spin of a massive probe fermion in a massless hot QED plasma at local equilibrium is investigated through the quantum kinetic theory. We consider the massive probe fermion undergoing 2-by-2 Coulomb scattering with…

高能物理 - 唯象学 · 物理学 2022-11-09 Ziyue Wang

It has been realized that thermal shear plays a similar role as thermal vorticity in polarizing spin of particles in heavy ion collisions. We point out that shear has a fundamental difference that it leads to particle redistribution in the…

高能物理 - 唯象学 · 物理学 2022-12-28 Shu Lin , Ziyue Wang

Based on a generalized side-jump formalism for massless chiral fermions, which naturally takes into account the spin-orbit coupling in the scattering of two chiral fermions and the chiral vortical effect in a rotating chiral fermion matter,…

核理论 · 物理学 2021-02-03 Shuai Y. F. Liu , Yifeng Sun , Che Ming Ko

We study the effects of externally applied shear flow on a model of suspensions of motors and filaments, via the equations of active hydrodynamics [PRL {\bf 89} (2002) 058101; {\bf 92} (2004) 118101]. In the absence of shear, the…

软凝聚态物质 · 物理学 2009-11-11 Sudipto Muhuri , Madan Rao , Sriram Ramaswamy

We theoretically study the spin current between two polarized Fermi gases with repulsive interactions near the itinerant ferromagnetic phase transition. We consider a two-terminal model where the left reservoir is fixed to be fully…

量子气体 · 物理学 2023-10-16 Tingyu Zhang , Daigo Oue , Hiroyuki Tajima , Mamoru Matsuo , Haozhao Liang

Shear flows are ubiquitously present in space and astrophysical plasmas. This paper highlights the central idea of the non-thermal acceleration of charged particles in shearing flows and reviews some of the recent developments. Topics…

高能天体物理现象 · 物理学 2019-09-17 Frank M. Rieger

We investigate the dynamical spin polarization of a massless electron probing an electron plasma in locally thermal equilibrium via the Moller scattering from the quantum kinetic theory. We derive an axial kinetic equation delineating the…

高能物理 - 唯象学 · 物理学 2022-07-12 Shuo Fang , Shi Pu , Di-Lun Yang

We give a brief overview of recent theoretical and experimental results on the chiral magnetic effect and spin polarization effect in heavy-ion collisions. We present updated experimental results for the chiral magnetic effect and related…

高能物理 - 唯象学 · 物理学 2020-08-05 Jian-Hua Gao , Guo-Liang Ma , Shi Pu , Qun Wang

The linear and renormalized nonlinear kinetic theory of drift instability of plasma shear flow across the magnetic field, which has the Kelvin's method of shearing modes or so-called non-modal approach as its foundation, is developed. The…

等离子体物理 · 物理学 2015-05-27 V. S. Mikhailenko , V. V. Mikhailenko , K. N. Stepanov

The spectrum of collective excitations of degenerate partially polarized spin-1/2 fermions is considered. The spin-up fermions and the spin-down fermions are considered as different fluids. Corresponding two-fluid hydrodynamics consistent…

量子气体 · 物理学 2018-01-23 Pavel A. Andreev

In these proceedings I discuss the recent progress in the theory of spin polarization in relativistic fluids. To date, a number of studies have begun to examine the impact of the shear tensor on the local spin polarization and whether this…

核理论 · 物理学 2023-03-22 Matteo Buzzegoli

Using a covariant and angular-momentum-conserved chiral transport model, which takes into account the spin-orbit interactions of chiral fermions in their scatterings via the side jumps, we study the quark spin polarization in quark matter.…

核理论 · 物理学 2020-08-12 Shuai Y. F. Liu , Yifeng Sun , Che Ming Ko

Spin polarization provides a novel probe of the rotational properties of the quark-gluon plasma formed in relativistic heavy-ion collisions. This work investigates the equation of state, particularly its transport and thermodynamic…

核理论 · 物理学 2026-02-12 De-Xian Wei

In this work we, study shear reversals of dense non-Brownian suspensions composed of cohesionless elliptical particles. By numerical simulations, we show that a new fragility appears for frictionless ellipses in the flowing states, where…

软凝聚态物质 · 物理学 2021-05-20 Martin Trulsson

The dielectric permeability tensor for spin polarized plasmas is derived in terms of the spin-1/2 quantum kinetic model in six-dimensional phase space. Expressions for the distribution function and spin distribution function are derived in…

等离子体物理 · 物理学 2017-03-08 Pavel A. Andreev

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

We consider the momentum distribution and the polarization of an inclusive heavy fermion in a process assumed to arise from standard-model (SM) $s$-channel exchange of a virtual $\gamma$ or $Z$ with a further contribution from physics…

高能物理 - 唯象学 · 物理学 2018-02-15 B. Ananthanarayan , Saurabh D. Rindani

An effect of sheared large-scale motions on a mean electromotive force in a nonrotating turbulent flow of a conducting fluid is studied. It is demonstrated that in a homogeneous divergence-free turbulent flow the alpha-effect does not…

天体物理学 · 物理学 2009-11-07 I. Rogachevskii , N. Kleeorin

We investigate the spin Seebeck effect and spin pumping in a junction between a ferromagnetic insulator and a magnetic impurity deposited on a normal metal. By the numerical renormalization group calculation, we show that spin current is…

介观与纳米尺度物理 · 物理学 2021-09-15 Tsuyoshi Yamamoto , Takeo Kato , Mamoru Matsuo
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