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We have calculated the intensity of electromagnetic radiation from particles rotating in close vicinity to a transparent dielectric plate. The radiation is a result of quantum and thermal friction occurring during particle rotation, while…

量子物理 · 物理学 2016-08-26 G. V. Dedkov , A. A. Kyasov

We investigate the magnetic properties of quarkyonic matter, which naturally bridges nuclear and quark matter at intermediate densities relevant to neutron star cores. We extend the quarkyonic model to include spin polarization, where…

核理论 · 物理学 2025-07-10 Bikai Gao , Kenichi Yoshida

We present a simplified description of a rotating neutron star emitting gravitational waves. We describe the system by an uniformly rotating triaxial homogeneous ellipsoid to catch the main aspects of the evolution. We construct an…

太阳与恒星天体物理 · 物理学 2013-08-13 Ana Maria Endler , Sérgio Barbosa Duarte , Hilário Rodrigues , Marcelo Chiapparini

I propose three new curved spacetime versions of the Dirac Equation. These equations have been developed mainly to try and account in a natural way for the observed anomalous gyromagnetic ratio of Fermions. The derived equations suggest…

综合物理 · 物理学 2008-11-26 G. G. Nyambuya

A circularly polarized light can induce a dissipationless dc current in a quantum nanoring which is responsible for a resonant helicity-driven contribution to magnetic moment. This current is not suppressed by thermal averaging despite its…

介观与纳米尺度物理 · 物理学 2015-12-30 K. L. Koshelev , V. Yu. Kachorovskii , M. Titov

Interaction of a charged particle in a static magnetic background, i.e., a Landau system with circularly polarised gravitational wave (GW) is studied quantum mechanically in the long wavelength and low velocity limit. We quantize the…

广义相对论与量子宇宙学 · 物理学 2015-06-03 Sunandan Gangopadhyay , Anirban Saha , Swarup Saha

When neutrinos propagate in a background, their gravitational couplings are modified by their weak interactions with the particles in the background. In a medium that contains electrons but no muons or taons, the matter-induced…

高能物理 - 唯象学 · 物理学 2010-12-03 H. Athar , Jose F. Nieves

We present a rather powerful method in investigations of different phenomena that can appear when neutrinos and electrons propagate in background matter. This method is based on the use of the modified Dirac equations for particles wave…

高能物理 - 唯象学 · 物理学 2015-06-25 Alexander Studenikin

It is a well known fact that, in the absence of Dark Matter, the observation of the rotation curves of galaxies cannot be explained in terms of Newtonian gravity. Rotation curves become flat in the outer regions, in contrast to what is…

广义相对论与量子宇宙学 · 物理学 2022-11-01 Matteo Luca Ruggiero , Antonello Ortolan , Clive C. Speake

We consider plasma consisting of electrons and ions in presence of a background neutrino gas and develop the magneto hydrodynamic equations for the system. We show that electron neutrino interaction can induce vorticity in the plasma even…

高能物理 - 唯象学 · 物理学 2017-07-27 Jitesh R. Bhatt , Manu George

We present a rather powerful method in investigations of different phenomena that can appear when neutrinos and electrons are moving in the background matter. This method is based on the use of the modified Dirac equations for the particles…

高能物理 - 唯象学 · 物理学 2014-11-27 Alexander Studenikin

It has been suggested that the observed pulsar velocities are caused by an asymmetric neutrino emission from a hot neutron star during the first seconds after the supernova collapse. We calculate the magnitude of gravitational waves…

天体物理学 · 物理学 2009-11-10 Lee C. Loveridge

Effects of gravitational interaction are generally neglected in particle physics. A first order formulation of gravity is presented to include gravity in Quantum Mechanical Lagrangian of fermions. It is seen that fermions minimally coupled…

高能物理 - 唯象学 · 物理学 2023-03-01 Indrajit Ghose , Riya Barick , Amitabha Lahiri

An study of the equatorial circular motion of photons and massive particles around a rotating compact body like a neutron star is presented. For this goal, we use an approximate Kerr-like metric with mass quadrupole as perturbation. The…

广义相对论与量子宇宙学 · 物理学 2024-05-01 Diego Solano-Alfaro , Francisco Frutos-Alfaro

We investigate torsion and noninertial effects on a spin-$1/2$ quantum particle in the nonrelativistic limit of the Dirac equation. We consider the cosmic dislocation spacetime as a background and show that a rotating system of reference…

量子物理 · 物理学 2014-05-21 K. Bakke

There are conflicting statements in the literature about the gravitational Faraday rotation of the plane of polarization of polarized electromagnetic radiation travelling through a gravitational wave. This issue is reconsidered using a…

天体物理学 · 物理学 2008-11-26 Valerio Faraoni

We investigate the non-linear interaction of a strong Gravitational Wave with the plasma during the collapse of a massive magnetized star to form a black hole, or during the merging of neutron star binaries (central engine). We found that…

天体物理学 · 物理学 2009-11-10 Loukas Vlahos , George Voyatzis , Demetrios Papadopoulos

In the context of the Einstein-Cartan-Dirac model, where the torsion of the space-time couples to the axial currents of the fermions, we study the effects of this quantum-gravitational interaction on a massless neutrino beam crossing…

广义相对论与量子宇宙学 · 物理学 2016-12-21 M. Alimohammadi , A. shariati

It is known that the gravitational analog of the Faraday rotation arises in the rotating spacetime due to the nonzero gravitomagnetic field. In this paper, we show that it also arises in the "nonrotating" Reissner-Nordstr\"om spacetime, if…

广义相对论与量子宇宙学 · 物理学 2022-04-01 Chandrachur Chakraborty

We study the resonant interaction of charged particles with a gravitational wave propagating in the non-empty interstellar space in the presence of a uniform magnetic field. It is found that this interaction can be cast in the form of a…

广义相对论与量子宇宙学 · 物理学 2009-10-31 K. Kleidis , H. Varvoglis , D. B. Papadopoulos