Zobrazeno 1 - 10
of 1 132
pro vyhledávání: '"Petrov, P. I."'
Publikováno v:
International Journal of Geometric Methods in Modern Physics (2023) 2350087
The class of Petrov type I curvature tensors is further divided into those for which the span of the set of distinct principal null directions has dimension four (maximally spanning type I) or dimension three (nonmaximally spanning type I). Explicit
Externí odkaz:
http://arxiv.org/abs/2111.01283
Akademický článek
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Autor:
Gokhfeld, D. M., Petrov, M. I., Semenov, S. V., Balaev, A. D., Nemtsev, I. V., Vasiliev, A. D., Molokeev, M. S.
Publikováno v:
Ceram. Int. 50 (2024) 52213
Solid-state synthesis is widely used in exploratory research to study various structural modifications that affect the properties (critical temperature, critical current density, irreversibility field, etc.) of superconductors. The popularity of this
Externí odkaz:
http://arxiv.org/abs/2412.08113
Publikováno v:
JHEP 1412 (2014) 147
Recently the Petrov type I condition is introduced to reduce the degrees of freedom in the extrinsic curvature of a timelike hypersurface to the degrees of freedom in the dual Rindler fluid in Einstein gravity. In this paper we show that the Petrov t
Externí odkaz:
http://arxiv.org/abs/1408.6488
Publikováno v:
Phys. Rev. D 90, 041901(R)(2014)
The Petrov type I condition for the solutions of vacuum Einstein equations in both of the non-relativistic and relativistic hydrodynamic expansions is checked. We show that it holds up to the third order of the non-relativistic hydrodynamic expansion
Externí odkaz:
http://arxiv.org/abs/1401.7792
Publikováno v:
JHEP 1304(2013) 118
Recently Lysov and Strominger [arXiv:1104.5502] showed that imposing Petrov type I condition on a $(p+1)$-dimensional timelike hypersurface embedded in a $(p+2)$-dimensional vacuum Einstein gravity reduces the degrees of freedom in the extrinsic curv
Externí odkaz:
http://arxiv.org/abs/1302.2016
Akademický článek
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Autor:
Petrov, N. I., Sokolov, Y. M., Stoiakin, V. V., Danilov, V. A., Popov, V. V., Usievich, B. A.
The photonic spin Hall effect (PSHE) in surface plasmon resonance (SPR) structures has great potential for various polarization-sensitive applications and devices. Here, using optical weak measurement, we observe spin-dependent and spin-independent a
Externí odkaz:
http://arxiv.org/abs/2408.13151
Autor:
Wylleman, Lode
Publikováno v:
Class.Quant.Grav.25:172001,2008
The general line element corresponding to the family of algebraically general, gravito-electric, expanding, rotating dust models with one functionally independent zero-order Riemann invariant is constructed. The isometry group is at most one-dimensio
Externí odkaz:
http://arxiv.org/abs/0801.4766
Publikováno v:
Gen.Rel.Grav. 35 (2003) 1351-1363
We develop an algebraic procedure to rotate a general Newman-Penrose tetrad in a Petrov type I spacetime into a frame with Weyl scalars $\Psi_{1}$ and $\Psi_{3}$ equal to zero, assuming that initially all the Weyl scalars are non vanishing. The new f
Externí odkaz:
http://arxiv.org/abs/gr-qc/0212027