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pro vyhledávání: '"Cosmic string spacetime"'
We analyze the entanglement generation in a pair of qubits that experience the vacuum fluctuations of a scalar field in the Cosmic String spacetime. The qubits are modeled as Unruh-DeWitt detectors coupled to a massless scalar field. We introduce a H
Externí odkaz:
http://arxiv.org/abs/2407.17389
Autor:
Mustafa, Omar
Publikováno v:
Nucl. Phys. B 1006 (2024) 116629
We investigate Klein-Gordon (KG) oscillators in a G\"{o}% del-type Som-Raychaudhuri spacetime in a mixed magnetic field (given by the vector potential $A_{\mu }=\left( 0,0,A_{\varphi },0\right) $, with $% A_{\varphi }=B_{1}r^{2}/2+B_{2}r$). The resul
Externí odkaz:
http://arxiv.org/abs/2405.10585
Autor:
Yesiltas, O., Oner, B. B.
The supersymmetric analysis of spinning cosmic string spacetime, involving an electron in magnetic fields, has been conducted. We examined the Dirac system within extended special functions known as exceptional orthogonal polynomials. Corresponding D
Externí odkaz:
http://arxiv.org/abs/2404.15470
Autor:
Mustafa, Omar
We study the Klein-Gordon (KG) oscillators in a spinning cosmic string spacetime and an external magnetic field. The corresponding KG-equation is shown to admit a solution in the form of the confluent hypergeometric functions/polynomials. Consequentl
Externí odkaz:
http://arxiv.org/abs/2404.08905
Autor:
Oliveira, R. R. S.
In this paper, we study the relativistic and nonrelativistic Landau levels for Dirac fermions in the cosmic string spacetime in the context of rainbow gravity in $(3+1)$-dimensions, where we work with the curved Dirac equation with minimal coupling i
Externí odkaz:
http://arxiv.org/abs/2403.01366
Here we analyze the expectation value of the fermionic condensate and the energy-momentum tensor associated with a massive charged fermionic quantum field with a nonzero chemical potential propagating in a magnetic-flux-carrying cosmic string in ther
Externí odkaz:
http://arxiv.org/abs/2402.04147
Publikováno v:
JHEP 06(2024)161
We investigate the entanglement harvesting phenomenon for static detectors that locally interact with massless scalar fields in the cosmic string spacetime, which, though locally flat, features a conical structure defined by a deficit angle. Specific
Externí odkaz:
http://arxiv.org/abs/2401.13406
Autor:
Omar Mustafa
Publikováno v:
Nuclear Physics B, Vol 1006, Iss , Pp 116629- (2024)
We investigate Klein-Gordon (KG) oscillators in a Gödel-type Som-Raychaudhuri spacetime in a mixed magnetic field (given by the vector potential Aμ=(0,0,Aφ,0), with Aφ=B1r2/2+B2r). The resulting KG equation takes a Schrödinger-like form (with an
Externí odkaz:
https://doaj.org/article/4801c94fca3a47ebb03058a776d4218c
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