Zobrazeno 1 - 10
of 439
pro vyhledávání: '"Dzhunushaliev, Vladimir"'
We consider self-gravitating Skyrmions in the presence of Dirac fermions, that carry spin and isospin. By varying the gravitational and the Yukawa coupling constants, we investigate the spectral flow of the fermion eigenvalue associated with a zero m
Externí odkaz:
http://arxiv.org/abs/2407.17504
Flux tube solutions within non-Abelian SU(3) Proca theory with external sources are obtained. It is shown that such tubes have a longitudinal chromoelectric field possessing two components (nonlinear and gradient), as well as a transverse chromomagne
Externí odkaz:
http://arxiv.org/abs/2404.07747
We investigate self-gravitating solutions of the Einstein-Skyrme theory coupled to spin-isospin Dirac fermions and consider the dependence of the spectral flow on the effective gravitational coupling constant and on the Yukawa coupling. It is shown t
Externí odkaz:
http://arxiv.org/abs/2401.01610
We suggest commutation relations for a quantum measure. In one version of these relations, the right-hand side takes account of the presence of curvature of space; in the simplest case, this yields the action of general relativity. We consider the ca
Externí odkaz:
http://arxiv.org/abs/2312.17546
We consider a self-consistent axially symmetric system supported by a classical nonlinear spinor field minimally coupled to electric and magnetic Maxwell fields. The presence of the nonlinearity of the spinor field ensures the existence of a minimum
Externí odkaz:
http://arxiv.org/abs/2310.00883
We study fermionic modes localized on the static spherically symmetric self-gravitating non-Abelian monopole in the $SU(2)$ Einstein-Dirac-Yang-Mills-Higgs theory. We consider dependence of the spectral flow on the effective gravitational coupling co
Externí odkaz:
http://arxiv.org/abs/2307.15277
Publikováno v:
Eur.Phys.J. C 83, 550 (2023)
We consider a spinor domain wall embedded in a five-dimensional spacetime with a nondiagonal metric. The corresponding plane symmetric solutions for linear and nonlinear spinor fields with different parameters are obtained. It is shown that in the ge
Externí odkaz:
http://arxiv.org/abs/2303.02990
Using the Radon-Nikodym theorem concerning the relation between any two measures, as well as the methods employed in loop quantum gravity, it is shown that, in gravitation, one can quantize any measure which is not even associated with metric. We hav
Externí odkaz:
http://arxiv.org/abs/2210.10388
Publikováno v:
Phys. Rev. D 107, 044060 (2023)
We present rapidly rotating neutron stars featuring wormholes in their centers. They arise in general relativity in the presence of a ghost scalar field. The nuclear matter is described by a polytropic equation of state, yielding realistic masses and
Externí odkaz:
http://arxiv.org/abs/2210.04425
Particlelike solutions in SU(3) gauge Yang-Mills theory with color magnetic and electric fields sourced by a nonlinear spinor field are obtained. The asymptotic behavior of these fields is studied. It is shown that the electric field exhibits the Cou
Externí odkaz:
http://arxiv.org/abs/2208.02558