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相关论文: Low-Temperature Spin Diffusion in a Spin-Polarized…

200 篇论文

We study the connection between the spin-heat and spin-charge response in a disordered Fermi gas with spin-orbit coupling. It is shown that the ratio between the above responses can be expressed as the thermopower $S=-(\pi…

介观与纳米尺度物理 · 物理学 2015-06-12 J. Borge , C. Gorini , R. Raimondi

We explore the structure of momentum distributions of Fermi liquids such as completely polarized 3He, unpolarized liquid 3He, and nuclear matter at nonzero temperatures. The study employs correlated density matrix theory and adapts the…

强关联电子 · 物理学 2015-05-19 M. Serhan , M. L. Ristig

Thermodynamics of degenerate Fermi gases has been extensively studied through various aspects such as Pauli blocking effects, collective modes, BCS superfluidity, and more. Despite this, multi-component fermions with imbalanced spin…

We consider a gas of fermions with non-zero spin at temperature $T$ and chemical potential $\mu$. We show that if the range of the interparticle interaction is small compared to the mean particle distance, the thermodynamic pressure differs…

数学物理 · 物理学 2015-06-26 Robert Seiringer

Motivated by the recent success of optical trapping of alkali bosons, we have studied the zeroth sound modes of dilute Fermi gases with arbitrary spin-f, which are spin-S excitations ($0\leq S\leq 2f$). The dispersion of the mode (S)…

凝聚态物理 · 物理学 2007-05-23 S-K. Yip , Tin-Lun , Ho

By combining methods from thermal field theory and statistical mechanics, we reexamine the spin polarization caused by the relativistic Barnett effect in a rigidly rotating Fermi gas. We determine the pressure of this medium and show that…

核理论 · 物理学 2026-04-09 M. Abedlou Ahadi , N. Sadooghi

Recent experiments in a mixture of two hyperfine states of trapped Bose gases show behavior analogous to a spin-1/2 system, including transverse spin waves and other familiar Leggett-Rice-type effects. We have derived the kinetic equations…

统计力学 · 物理学 2009-11-10 W. J. Mullin , R. J. Ragan

We elucidate the itinerant ferromagnetism of a dipolar Fermi gas with a Raman-induced spin-orbit coupling by investigating the exotic phase diagrams at zero and finite temperature. It is revealed that the dipolar interaction along with…

量子气体 · 物理学 2022-06-15 Xue-Jing Feng , Xing-Dong Zhao , Wu-Ming Liu

The phenomenon of low-temperature spin Coulomb drag in a two-dimensional electron gas is investigated. The spin transresistivity coefficient is essentially enhanced in the diffusive regime, as compared to conventional predictions. The…

强关联电子 · 物理学 2016-02-12 A. G. Yashenkin , I. V. Gornyi

We investigate the finite temperature properties of an ultracold atomic Fermi gas with spin population imbalance in a highly elongated harmonic trap. Previous studies at zero temperature showed that the gas stays in an exotic spatially…

统计力学 · 物理学 2008-08-07 Xia-Ji Liu , Hui Hu , Peter D. Drummond

We revisit early suggestions to observe spin-charge separation (SCS) in cold-atom settings {in the time domain} by studying one-dimensional repulsive Fermi gases in a harmonic potential, where pulse perturbations are initially created at…

统计力学 · 物理学 2022-09-21 Stefano Scopa , Pasquale Calabrese , Lorenzo Piroli

We study low energy spin and charge transport through a 1D Mott-Hubbard insulator of finite length $L$ attached to Fermi liquid reservoirs characterized by different chemical potentials for electrons of opposite spin polarizations as it…

介观与纳米尺度物理 · 物理学 2011-05-20 V. V. Ponomarenko

In this Rapid Communication, we investigate the universal properties of a spin-polarized two-component Fermi gas in one dimension (1D) using Bethe ansatz. We discuss the quantum phases and phase transitions by obtaining exact results for…

量子气体 · 物理学 2016-10-12 Wen-Bin He , Yang-Yang Chen , Shizhong Zhang , Xi-Wen Guan

We study the spin-Seebeck effect in a strongly interacting, two-component Fermi gas and propose an experiment to measure this effect by relatively displacing spin up and spin down atomic clouds in a trap using spin-dependent temperature…

量子气体 · 物理学 2012-08-10 C. H. Wong , H. T. C. Stoof , R. A. Duine

We construct a fully self-consistent Hartree-Fock-Bogoliubov theory that describes a spinless Fermi gas with long-range interaction. We apply this theory to a system of uniform dipolar fermionic polar molecules, which has attracted much…

量子气体 · 物理学 2011-04-12 Cheng Zhao , Lei Jiang , Xunxu Liu , W. M. Liu , Xubo Zou , Han Pu

The comparison of transverse spin wave spectra and its attenuation in Heisenberg ferromagnet and in ferromagnetic Fermi liquid as well in polarized Fermi liquid is undertaken. The transverse spin waves frequency in polarized paramagnetic…

强关联电子 · 物理学 2007-05-23 V. P. Mineev

We develop an approach, by calculating the autocorrelation function of spins, to derive the magnetic field gradient induced transverse ($T_2$) relaxation of spins undergoing restricted diffusion. This approach is an extension to the method…

原子物理 · 物理学 2012-03-20 W. Zheng , H. Gao , J. -G. Liu , Y. Zhang , Q. Ye , C. Swank

We have measured the thermal conductivity of the spin S=1 chain compound Y2BaNiO5. Analyzing the anisotropy of the thermal transport allows to identify a definite spin-mediated thermal conductivity \kappa_s along the chain direction. The…

强关联电子 · 物理学 2007-05-23 K. Kordonis , A. V. Sologubenko , T. Lorenz , S. -W. Cheong , A. Freimuth

We study spin dynamics of a normal Fermi liquid taking into account the demagnetizing field produced by the spin system itself. Linear solutions of the spin dynamics equations in the form of standing spin waves in a finite volume of liquid…

凝聚态物理 · 物理学 2009-11-07 P. L. Krotkov , V. P. Mineev , G. A. Vermeulen

Self-diffusion, $D$, in a system of particles that interact with a pseudo hard sphere potential is analyzed. Coupling with a solvent is represented by a Langevin thermostat, characterized by the damping time $t_d$. The hypotheses that…

统计力学 · 物理学 2023-02-08 L. Marchioni , M. A. Di Muro , M. Hoyuelos