Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Allahbakhshi, Davood"'
Publikováno v:
Phys. Rev. C 98, 024906 (2018)
The distribution of flow harmonics in heavy ion experiment can be characterized by standardized cumulants. We first model the ellipticity and power parameters of the elliptic-power distribution by employing MC-Glauber model. Then we use the elliptic-
Externí odkaz:
http://arxiv.org/abs/1704.06295
Publikováno v:
Phys. Rev. D 96, 126002 (2017)
We study the long wavelength excitations in rotating QCD fluid in presence of an external magnetic field at finite vector and axial charge densities. We consider the fluctuations of vector and axial charge currents coupled to energy and momentum fluc
Externí odkaz:
http://arxiv.org/abs/1612.08614
Autor:
Allahbakhshi, Davood
It is shown that the Reissner-Nordstrom black hole is also a gravitational Schwinger ball. It is also shown that both massless and massive-particle gravitational Schwinger balls are thermodynamic systems by deriving the first law of thermodynamics fo
Externí odkaz:
http://arxiv.org/abs/1608.08863
Autor:
Allahbakhshi, Davood
It is shown that the Hawking radiation and staying at the Schwarzschild state are not consistent for black holes as graviton balls. The only exception is the eternal black hole.
Comment: 3 pages
Comment: 3 pages
Externí odkaz:
http://arxiv.org/abs/1608.04291
Autor:
Allahbakhshi, Davood
We have shown intriguing similarities between Schwinger balls and black holes. By considering black hole as a gravitational Schwinger ball, we have derived the Bekenstein-Hawking entropy and the first law of black hole thermodynamics as a direct resu
Externí odkaz:
http://arxiv.org/abs/1608.00822
Autor:
Allahbakhshi, Davood
A holographic duality is proposed between black hole evaporation in the bulk and hadronization (confinement) in dual field theory. Information paradox is discussed in this duality. We also propose that the recently introduced semi black brane solutio
Externí odkaz:
http://arxiv.org/abs/1607.05546
Autor:
Allahbakhshi, Davood
Gravitational effective action is calculated to second order in transverse momentums for a planar asymptotically anti-de Sitter geometry by gauge fixing method. The first order bulk energy-momentum tensor is calculated. The zeroth order equations of
Externí odkaz:
http://arxiv.org/abs/1607.01286
Autor:
Allahbakhshi, Davood
A new method is introduced for doing calculations of quantum field theories in planar geometries which the metric depends on just one coordinate. In contrast to previous method, this method can be used in any planar geometry, not only weakly curved a
Externí odkaz:
http://arxiv.org/abs/1606.08678
In the hot (an)isotropic plasma the meson life time $\tau$ is defined as a time scale after which the meson dissociates. According to the gauge/gravity duality, this time can be identified with the inverse of the imaginary part of the frequency of th
Externí odkaz:
http://arxiv.org/abs/1404.5790
We study entanglement entropy for an excited state by making use of the proposed holographic description of the entanglement entropy. For a sufficiently small entangling region and with reasonable identifications we find an equation between entanglem
Externí odkaz:
http://arxiv.org/abs/1305.2728