Zobrazeno 1 - 10
of 491
pro vyhledávání: '"Obukhov, A. N."'
Autor:
Mashhoon, Bahram, Obukhov, Yuri N.
We discuss the coupling of photon spin with rotation in connection with a recent proposal of Fedderke et al. [arXiv:2406.16178 [physics.optics]] regarding a precision gyroscope based on the intrinsic spin of light. To this end, we analyze the propaga
Externí odkaz:
http://arxiv.org/abs/2408.07799
Autor:
Obukhov, Yuri N., Volovik, G. E.
Publikováno v:
Phys. Rev. D 109 (2024) 064076
The quintet of Dirac $4\times 4$ matrices suggests that the fundamental dimension of the internal (spin) space is $n=5$, instead of the conventional dimension $n=4$. Then extending the usual $4\times 4$ tetrads (vierbein), gravity is described in ter
Externí odkaz:
http://arxiv.org/abs/2402.11593
The strong coupling between magnetism and ferroelectricity was found in rare earth manganites, where the electric polarization could be induced by special magnetic ordering. There is no theoretical model that would allow us to study the static and dy
Externí odkaz:
http://arxiv.org/abs/2311.03610
Autor:
Obukhov, Yuri N., Hehl, Friedrich W.
We outline how the symmetry groups of spacetime are interpreted in a gauge-theoretic approach. Specifically, we focus on the hypermomentum concept and discuss the hyperfluid, that appropriately generalizes the perfect (Euler) fluid of general relativ
Externí odkaz:
http://arxiv.org/abs/2311.03160
Autor:
Obukhov, Yuri N., Hehl, Friedrich W.
Publikováno v:
Phys. Rev. D 108, 104044 (2023)
A new variational theory of a hyperfluid is constructed which is free of the supplementary condition issue and provides a consistent model of the classical matter source in the metric-affine gravity theory.
Comment: Revtex, 16 paegs, no figures,
Comment: Revtex, 16 paegs, no figures,
Externí odkaz:
http://arxiv.org/abs/2308.06598
Autor:
Obukhov, Yuri N.
The dynamics of spin in external electromagnetic, gravitational, and axion fields is analysed in the framework of the gravitoelectromagnetism approach in Einstein's general relativity theory. We consistently extend the recent studies from the flat Mi
Externí odkaz:
http://arxiv.org/abs/2307.02567
Publikováno v:
Symmetry 15, 1518 (2023)
The coupling of intrinsic spin with the nonlinear gravitomagnetic fields of Goedel-type spacetimes is studied. We work with Goedel-type universes in order to show that the main features of spin-gravity coupling are independent of causality problems o
Externí odkaz:
http://arxiv.org/abs/2304.08835
We investigate the axial vector torsion-spin coupling effects in the framework of the Poincar\'e gauge theory of gravity with the general Yang-Mills type Lagrangian. The dynamical equations for the ``electric'' and ``magnetic'' components of the tors
Externí odkaz:
http://arxiv.org/abs/2212.13871
We undertake the construction of quadratic parity-violating terms involving the curvature in the four-dimensional metric-affine gravity. We demonstrate that there are only 12 linearly independent scalars, plus an additional one that can be removed by
Externí odkaz:
http://arxiv.org/abs/2210.01729
Autor:
Obukhov, Yuri N.
An important issue in phenomenological macroscopic electrodynamics of moving media is the definition of the energy and momentum of the electromagnetic field in matter. Rather surprisingly, this topic has demonstrated a remarkable longevity, and the p
Externí odkaz:
http://arxiv.org/abs/2208.10951