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相关论文: Tensor polarization and the dissipative damping of…

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The fluctuation-dissipation relation, a central result in non-equilibrium statistical physics, relates equilibrium fluctuations in a system to its linear response to external forces. Here we provide a direct experimental verification of…

软凝聚态物质 · 物理学 2017-11-15 Shuvojit Paul , Abhrajit Laskar , Rajesh Singh , Basudev Roy , R. Adhikari , Ayan Banerjee

In a collisionless, magnetized plasma, particles may stream freely along magnetic-field lines, leading to phase "mixing" of their distribution function and consequently to smoothing out of any "compressive" fluctuations (of density,…

等离子体物理 · 物理学 2019-03-27 Romain Meyrand , Anjor Kanekar , William Dorland , Alexander A. Schekochihin

The tensor polarization of particles and nuclei becomes constant in the coordinate system rotating with the same angular velocity as the spin and rotates in the lab frame with the above angular velocity. The general equation defining the…

高能物理 - 唯象学 · 物理学 2015-07-07 Alexander J. Silenko

Stress tensors are derived for the multiparticle collision dynamics algorithm, a particle-based mesoscale simulation method for fluctuating fluids, resembling those of atomistic or molecular systems. Systems with periodic boundary…

软凝聚态物质 · 物理学 2009-11-13 Roland G. Winkler , Chien-Cheng Huang

We study the important, yet widely overlooked, role of gluons for spin transport with a connection to local parity violation in quark gluon plasmas. We extend the newly developed quantum kinetic theory for relativistic fermions to the case…

核理论 · 物理学 2022-08-01 Berndt Müller , Di-Lun Yang

We study experimentally the thermal fluctuations of energy input and dissipation in a harmonic oscillator driven out of equilibrium, and search for Fluctuation Relations. We study transient evolution from the equilibrium state, together…

统计力学 · 物理学 2007-11-28 Sylvain Joubaud , Nicolas Garnier , Sergio Ciliberto

Superconductivity and polar charge fluctuation are studied in an organic conductor with the dimer-molecule degree of freedom. The extended Hubbard models, where the intra-dimer electronic structure and the inter-dimer Coulomb interactions…

强关联电子 · 物理学 2013-03-01 Akihiko Sekine , Joji Nasu , Sumio Ishihara

We propose a relativistic theory for spin density matrices of vector mesons based on Kadanoff-Baym equations in the closed-time-path formalism. The theory puts the calculation of spin observables such as the spin density matrix element…

高能物理 - 唯象学 · 物理学 2023-01-03 Xin-Li Sheng , Lucia Oliva , Zuo-Tang Liang , Qun Wang , Xin-Nian Wang

In this paper we study the polarization tensor of photons in a QED plasma in the presence of a magnetic field. We do it both at vanishing and at finite temperature. We use two different methods to compute the polarization tensor components…

高能物理 - 唯象学 · 物理学 2009-10-28 Ulf H. Danielsson , Dario Grasso

A flux liquid can condense into a smectic crystal in a pure layered superconductors with the magnetic field oriented nearly parallel to the layers. If the smectic order is commensurate with the layering, this crystal is {\sl stable} to…

凝聚态物理 · 物理学 2009-10-22 Leon Balents , David R. Nelson

The properties of a semiflexible polymer with fixed ends exposed to oscillatory shear flow are investigated by simulations. The two-dimensionally confined polymer is modeled as a linear bead-spring chain, and the interaction with the fluid…

软凝聚态物质 · 物理学 2021-12-14 Antonio Lamura , Roland G. Winkler

Recent experiments have found spin alignment of $J/\psi$ with respect to event plane in heavy ion collisions, suggesting a medium effect that is spin dependent. We propose a possible mechanism with polarized dissociation from the motion of…

高能物理 - 唯象学 · 物理学 2025-04-10 Zhishun Chen , Shu Lin

We present a theory of the imprinting of the electron spin coherence and population in an n-doped semiconductor which forms a junction with a ferromagnet. The reflection of non-equilibrium semiconductor electrons at the interface provides a…

介观与纳米尺度物理 · 物理学 2009-11-07 C. Ciuti , J. P. McGuire , L. J. Sham

We have implemented the 3+1 dimensional CLVisc hydrodynamics model with TRENTO-3D initial conditions to investigate the spin polarization of $\Lambda$ hyperons along the beam direction in p+Pb collisions at $\sqrt{s_{NN}} = 8.16$ TeV.…

高能物理 - 唯象学 · 物理学 2024-09-02 Cong Yi , Xiang-Yu Wu , Jie Zhu , Shi Pu , Guang-You Qin

We consider two non-interacting infinite quantum spin chains immersed in a common thermal environment and undergoing a local dissipative dynamics of Lindblad type. We study the time evolution of collective mesoscopic quantum spin…

量子物理 · 物理学 2016-07-12 Fabio Benatti , Federico Carollo , Roberto Floreanini

We calculate the dynamical fluctuation spectrum of electronic spins in a semiconductor under a steady-state illumination by light containing polarization squeezing correlations. Taking into account quasi-particle lifetime and spin…

其他凝聚态物理 · 物理学 2009-11-13 Eran Ginossar , Yehoshua Levinson , Shimon Levit

We investigate exciton-polariton condensation under magnetic field in a single high-quality semiconductor micropillar cavity. We observe successive polariton condensation of each spin component for two distinct threshold powers. Pronounced…

介观与纳米尺度物理 · 物理学 2014-09-18 C. Sturm , D. Solnyshkov , O. Krebs , A. Lemaître , I. Sagnes , E. Galopin , A. Amo , G. Malpuech , J. Bloch

We study the spin properties of top quarks produced in collisions of polarized photons in the threshold region. For a relatively heavy top quark the influence of non-perturbative effects is small and its polarization parameters can be…

高能物理 - 唯象学 · 物理学 2009-10-28 V. S. Fadin , V. A. Khoze , M. I. Kotsky

We use a thermal model with single freeze-out to determine longitudinal polarization of $\Lambda$ hyperons emitted from a hot and rotating hadronic medium. We consider the top RHIC energies and use the model parameters determined in the…

We develop the theory and practical expressions for the full quantum-mechanical distribution of the intrinsic macroscopic polarization of an insulator in terms of the ground state wavefunction. The central quantity is a cumulant generating…

凝聚态物理 · 物理学 2009-10-31 Ivo Souza , Tim Wilkens , Richard M. Martin