Results 61 to 70 of about 458,070 (185)
Gravitational baryogenesis in DGP brane cosmology
European Physical Journal C: Particles and Fields, 2018 We consider the imbalance of matter and antimatter by using a gravitational baryogenesis mechanism in the background of Dvali–Gabadadze–Porrati (DGP) brane cosmology.
K. Atazadeh
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Methods and results of the IGEC search for burst gravitational waves in the years 1997—2000
, 2003 Search fro gravitational signal from Gamma Ray ...
FORTINI P. +3 more
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Gauge-Invariant Localization of Infinitely Many Gravitational Energies from All Possible Auxiliary Structures [PDF]
, 2009 The problem of finding a covariant expression for the distribution and conservation of gravitational energy-momentum dates to the 1910s. A suitably covariant infinite-component localization is displayed, reflecting Bergmann's realization that there are ...
Pitts, J. Brian, J. Brian Pitts
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Non-extremal island in de Sitter gravity
Journal of High Energy PhysicsThis paper investigates the challenges and resolutions in computing the entanglement entropy for the quantum field theory coupled to de Sitter (dS) gravity along a timelike boundary.
Peng-Xiang Hao +3 more
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Neutrino masses and gravitational wave background
Physics Letters B, 2021 We consider the Standard Model with three right-handed neutrinos to generate tiny neutrino masses by the seesaw mechanism. Especially, we investigate the case when one right-handed neutrino has the suppressed Yukawa coupling constants.
Takehiko Asaka, Hisashi Okui
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Gravitational Chern-Simons Lagrangians and black hole entropy [PDF]
, 2011 We analyze the problem of defining the black hole entropy when Chern-Simons terms are present in the action. Extending previous works, w e define a general procedure, valid in any dimensions both for purely gravitational CS terms and for mixed gauge ...
L. Bonora +9 more
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Gravitational surface Hamiltonian and entropy quantization
Physics Letters B, 2017 The surface Hamiltonian corresponding to the surface part of a gravitational action has xp structure where p is conjugate momentum of x. Moreover, it leads to TS on the horizon of a black hole.
Ashish Bakshi +2 more
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Detectable universes inside regular black holes
European Physical Journal C: Particles and Fields, 2022 While spacetime in the vicinity outside astrophysical black holes is believed to be well understood, the event horizon and the interior remain elusive. Here, we discover a degenerate infinite spectrum of novel general relativity solutions with the same ...
Zacharias Roupas
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On Regular Black Holes at Finite Temperature
Advances in High Energy Physics, 2020 The Thermo Field Dynamics (TFD) formalism is used to investigate the regular black holes at finite temperature. Using the Teleparalelism Equivalent to General Relativity (TEGR), the gravitational Stefan-Boltzmann law and the gravitational Casimir effect ...
S. C. Ulhoa +4 more
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Gravitational Entropy and the Second Law of Thermodynamics [PDF]
Entropy, 2015 The spontaneous violation of Lorentz and diffeomorphism invariance in a phase near the big bang lowers the entropy, allowing for an arrow of time and the second law of thermodynamics. The spontaneous symmetry breaking leads to O(3,1) → O(3) × R
openaire +4 more sources