Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Nelson Pantoja"'
Autor:
Nelson Pantoja
Publikováno v:
Physical Review D. 100
Five-dimensional domain walls in gauged $SU(5)$ generate a position-dependent symmetry breaking pattern along the additional dimension. We analize the perturbative stability and the 4D spectrum of these walls in the self-gravitating case, in terms of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf1f052f1d5cb243c0f946b3f2dd9c81
https://doi.org/10.1103/physrevd.100.125011
https://doi.org/10.1103/physrevd.100.125011
Autor:
Rossana Guardia Rojas, Nelson Pantoja
Publikováno v:
Physical Review D. 95
The fluctuations of five-dimensional self-gravitating non-Abelian kinks which arise from the breaking of the $SU(5)\ifmmode\times\else\texttimes\fi{}{Z}_{2}$-symmetric theory are analyzed within the context of braneworlds. While tensor and vector sec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f7fd4755d392d07472dbcb645e46d15
https://doi.org/10.1103/physrevd.95.045008
https://doi.org/10.1103/physrevd.95.045008
Publikováno v:
Journal of Mathematical Physics. 45:1994-2002
For the non-rotating BTZ black hole, the distributional curvature tensor field is found. It is shown to have singular parts proportional to a $\delta$-distribution with support at the origin. This singularity is related, through Einstein field equati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::007c6b4ebaa9f289b9b281fd1d3d81e0
https://doi.org/10.1063/1.1699482
https://doi.org/10.1063/1.1699482
We address the properties of self-gravitating domain walls arising from the breaking of an SU(N) x Z_2- symmetric theory. In the particular case of N=5, we find that the two classes of stable non-abelian kinks possible in flat space have an analogue
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bbb3878828cdaa60eac9694f0f17d8b
http://arxiv.org/abs/1104.4857
http://arxiv.org/abs/1104.4857
We consider the effects of spacetime curvature and brane thickness on the localization of gauge fields on a brane via kinetic terms induced by localized fermions. We find that in a warped geometry with and infinitely thin brane, both the infrared and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e572da1252d20e7571215b601518c37
Publikováno v:
Physical Review D. 74
We show that the hierarchy between the Planck and the weak scales can follow from the tendency of gravitons and fermions to localize at different edges of a thick double wall embedded in an ${\mathrm{AdS}}_{5}$ spacetime without reflection symmetry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16d010702a388241c2e38e47b8057a89
https://doi.org/10.1103/physrevd.74.084025
https://doi.org/10.1103/physrevd.74.084025
Spin waves at the ferromagnetic-antiferromagnetic interface Pestana, E., Mata, G. J., Pantoja, N. Abstract We investigate the magnon modes in the neighbourhood of the interface between a ferromagnet and an antiferromagnet. The system is one-dimension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22486f27d97e9b8d36c1afa4490c115b
http://www.saber.ula.ve/handle/123456789/16952
http://www.saber.ula.ve/handle/123456789/16952
Autor:
Nelson Pantoja, Alberto Sanoja
Symmetries of distributional domain wall geometries Pantoja, Nelson; Sanoja, Alberto Abstract Generalizing the Lie derivative of smooth tensor fields to distribution-valued tensors, we examine the Killing symmetries and the collineations of the curva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19fab4d7101a64da49413c68c880f974
http://www.saber.ula.ve/handle/123456789/17018
http://www.saber.ula.ve/handle/123456789/17018
We analyse the distributional thin wall limit of self gravitating scalar field configurations representing thick domain wall geometries. We show that thick wall solutions can be generated by appropiate scaling of the thin wall ones, and obtain an exa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a111be514145a5812a441bfb4557b23
http://www.saber.ula.ve/handle/123456789/17069
http://www.saber.ula.ve/handle/123456789/17069
We show that the spacetimes of domain wall solutions to the coupled Einstein-scalar field equations with a given scalar field potential fall into two classes, depending on whether or not reflection symmetry on the wall is imposed. Solutions with refl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::653d9a46856e916ba2359a98f8f0b771
http://www.saber.ula.ve/handle/123456789/16967
http://www.saber.ula.ve/handle/123456789/16967