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In this paper we calculate the contribution to the ponderomotive force in a plasma from the electron spin using a recently developed model. The spin-fluid model used in the present paper contains spin-velocity correlations, in contrast to…

等离子体物理 · 物理学 2015-05-20 M. Stefan , J. Zamanian , G. Brodin , A. P. Misra , M. Marklund

The concept of a ponderomotive force due to the intrinsic spin of electrons is developed. An expression containing both the classical as well as the spin-induced ponderomotive force is derived. The results are used to demonstrate that an…

等离子体物理 · 物理学 2015-05-18 G. Brodin , A. P. Misra , M. Marklund

We study the contribution from the electron spin to the ponderomotive force, using a quantum kinetic model including the spin-orbit correction. Specifically, we derive an analytical expression for the ponderomotive force, applicable for…

等离子体物理 · 物理学 2023-06-28 Haidar Al-Naseri , Gert Brodin

We consider the influence of the electron spin on the nonlinear propagation of whistler waves. For this purpose a recently developed electron two-fluid model, where the spin up- and down populations are treated as different fluids, is…

等离子体物理 · 物理学 2015-05-14 Martin Stefan , Gert Brodin , Mattias Marklund

Starting from the non-relativistic Pauli description of spin-1/2 particles, a set of fluid equations, governing the dynamics of such particles interacting with external fields and other particles, is derived. The equations describe…

等离子体物理 · 物理学 2008-11-26 G. Brodin , M. Marklund

The charge and spin response of a spin--polarized electron gas is investigated including terms beyond the random phase approximation. We evaluate the charge response, the longitudinal and transverse spin response, and the mixed spin--charge…

凝聚态物理 · 物理学 2009-10-28 Kyung-Soo Yi , J. J. Quinn

In a generic spin-polarized Fermi liquid, the masses of spin-up and spin-down electrons are expected to be different and to depend on the degree of polarization. This expectation is not confirmed by the experiments on two-dimensional…

强关联电子 · 物理学 2011-07-14 Suhas Gangadharaiah , Dmitrii L. Maslov

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

A comment on the Letter by S. Braun, F. A. Asenjo and S. M. Mahajan, Phys. Rev. Lett., 109, 175003 (2012). We show that recent arguments for light amplification driven by inhomogeneous quantum spin fields in low temperature electron plasmas…

等离子体物理 · 物理学 2015-07-02 Govind S. Krishnaswami , Rajaram Nityananda , Abhijit Sen , Anantanarayanan Thyagaraja

The spin-electron-acoustic waves (sometimes called the spin-plasmons) can be found in degenerate electron gas if the spin-up electrons and spin down electrons move relatively each other. Here, we suggest relativistic hydrodynamics with the…

等离子体物理 · 物理学 2022-12-14 Pavel A. Andreev

Comment on K.J Thomas et al., Phys. Rev. Lett. 77, 135-138 (1996).

介观与纳米尺度物理 · 物理学 2009-09-25 Ralf D. Tscheuschner , Thomas Woelkhausen

A remarkably long-lived spin plasmon may exist in two-dimensional electron liquids with imbalanced spin up and spin down population. Predictions for this interesting mode by Agarwal et al. [Phys. Rev. B 90, 155409 (2014)] are based on the…

介观与纳米尺度物理 · 物理学 2016-03-09 Dominik Kreil , Raphael Hobbiger , Jürgen T. Drachta , Helga M. Böhm

It is shown that the electron spin may not be conserved after a spin-independent scattering. This fact strongly limits the validity of the classical model of spin-up/spin-down bands, which has been used for description of magnetic…

材料科学 · 物理学 2013-04-09 Vadym Zayets

The polarization produced by the relative displacement of the potentials trapping two spin species of a dilute Fermi gas with $N_\ua=N_\da$ is calculated at unitarity by assuming phase separation between the superfluid and a spin polarized…

软凝聚态物质 · 物理学 2011-10-18 A. Recati , I. Carusotto , C. Lobo , S. Stringari

A comment on a recent paper (PRL {\bf 94}, 226405 (2005)) by S. De Palo, M. Botti, S. Moroni, and Gaetano Senatore.

强关联电子 · 物理学 2007-05-23 Ying Zhang , S. Das Sarma

The covariant, spin-dependent response tensor for an electric dipole moment polarized electron gas (statistical distribution of electrons and positrons) is calculated using the formalism of quantum plasmadynamics. A simultaneous…

高能物理 - 理论 · 物理学 2025-03-24 Victor. M. Demcsak , Donald. B. Melrose

It is shown that the choice of spin-operator affects the form of the response tensor describing a spin-dependent electron gas. The covariant, spin-dependent response tensor for a magnetic dipole moment-polarized electron gas (statistical…

等离子体物理 · 物理学 2021-06-16 Victor. M. Demcsak , Donald. B. Melrose

We use spin-density functional theory to obtain novel expressions for the charge and spin local-field factors of an electron gas in terms of its electron-pair structure factors. These expressions (i) satisfy the compressibility and spin…

强关联电子 · 物理学 2009-11-07 B. Davoudi , M. Polini , M. P. Tosi

We derive the force exerted in the background plasma by an arbitrary distribution of non interacting quasi-particles, corresponding to either collective excitations of the plasma (plasmons, phonons) or em dressed particles (photons,…

等离子体物理 · 物理学 2009-10-31 L. O. Silva , R. Bingham , J. M. Dawson , W. B. Mori

The relativistic equation of motion of a particle with spin is derived. The effects of the spin are compared to the effects of the self force. For low energies the spin effects are shown to be two orders of magnitude larger than the self…

光学 · 物理学 2007-05-23 Richard T. Hammond
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