Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Alfredo Lopez-Ortega"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2021)
We numerically calculate the quasinormal frequencies of the Klein-Gordon and Dirac fields propagating in a two-dimensional asymptotically anti-de Sitter black hole of the dilaton gravity theory. For the Klein-Gordon field we use the Horowitz-Hubeny m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11287ef16b3ab79c8b1ea22536e76404
https://www.frontiersin.org/articles/10.3389/fspas.2021.713422/full
https://www.frontiersin.org/articles/10.3389/fspas.2021.713422/full
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 80, Iss 8, Pp 1-14 (2020)
European Physical Journal C: Particles and Fields, Vol 80, Iss 8, Pp 1-14 (2020)
In the zero momentum limit we numerically calculate the quasinormal frequencies of the massive Dirac field propagating in a Lifshitz black brane. We focus on the non-exactly solvable cases for the fermionic perturbations, so that our results are an e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::355db542f685c2cc19faed9f3e70bf59
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
General Relativity and Gravitation. 50
In the zero momentum limit we exactly calculate the quasinormal frequencies of the massive Dirac field propagating in a Lifshitz black brane. Our results are an extension of those for the massive Klein–Gordon field in the zero momentum limit, but i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d05f46d1f397cf10a0e0be9287c2c279
https://doi.org/10.1007/s10714-018-2437-6
https://doi.org/10.1007/s10714-018-2437-6
Autor:
Alfredo Lopez-Ortega
Publikováno v:
General Relativity and Gravitation. 44:2387-2400
Modifying a method by Horowitz and Hubeny for asymptotically anti-de Sitter black holes, we establish the classical stability of the quasinormal modes of the de Sitter spacetime. Furthermore using a straightforward method we calculate the de Sitter q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d1b55a05603ba9d1491bcb7eeccc3a5
https://doi.org/10.1007/s10714-012-1398-4
https://doi.org/10.1007/s10714-012-1398-4
Autor:
Alfredo Lopez-Ortega
Publikováno v:
International Journal of Modern Physics D. 20:2525-2542
The Hod conjecture proposes that the asymptotic quasinormal frequencies determine the entropy quantum of a black hole. Considering the Maggiore modification of this conjecture we calculate the entropy spectra of general, single horizon, asymptoticall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a739e153b03b282305c1882242b07c24
https://doi.org/10.1142/s0218271811020524
https://doi.org/10.1142/s0218271811020524
Autor:
Alfredo Lopez-Ortega
Publikováno v:
General Relativity and Gravitation. 37:167-190
Some properties of the Hawking radiation emitted by the family of black holes of the Einstein–Maxwell–Dilaton with cosmologicalconstant theory in three dimensions found by Chan and Mann are studiedusing the complex paths method and the Damour–R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4a8d70eaece1742722c6c5b8fbafb1c
https://doi.org/10.1007/s10714-005-0007-1
https://doi.org/10.1007/s10714-005-0007-1
Autor:
Alfredo Lopez-Ortega
Publikováno v:
General Relativity and Gravitation. 36:1299-1319
We show that the Dirac equation is separable in the circularly symmetric metric in three dimensions and when the background spacetime is de Sitter we find exact solutions to the radial equations. Using these results we show that the de Sitter horizon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b26ec396244f9ee62541c5d4a3c1454
https://doi.org/10.1023/b:gerg.0000022389.05399.6d
https://doi.org/10.1023/b:gerg.0000022389.05399.6d
Autor:
Alfredo Lopez-Ortega
Publikováno v:
General Relativity and Gravitation. 35:1785-1797
We show that the equation of motion for a massive scalar field coupled to the scalar curvature is separable in the n-dimensional metric with one rotation parameter (n > 4) found by Klemm, which includes, for example, the n-dimensional Kerr-AdS soluti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8da691a8a24cde6a85087f09e399c0d0
https://doi.org/10.1023/a:1026010013400
https://doi.org/10.1023/a:1026010013400
Autor:
Alfredo Lopez-Ortega
Publikováno v:
General Relativity and Gravitation. 35:59-68
Using the Newman-Penrose formalism and the brick wall model the entropy of a Kerr black hole due to a massless Rarita–Schwinger field is calculated. The dependence of the subleading correction with the spin is analyzed and the differences with prev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3580ca590b8d8308081881d9715e70bb
https://doi.org/10.1023/a:1021302911454
https://doi.org/10.1023/a:1021302911454
Autor:
M. Y. Rojas-Luis, Alfredo Lopez-Ortega
To extend previous results on the late time behavior of massive fields, for the Dirac field propagating in the D-dimensional Minkowski spacetime we calculate analytically its asymptotic tails. We find that the massive Dirac field has an oscillatory i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a60bb9f81664b059b39f96b85b0eed96
