Zobrazeno 1 - 10
of 28
pro vyhledávání: '"M. O. Tahim"'
Autor:
G. Alencar, M. O. Tahim
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 3, Pp 1-22 (2023)
Abstract In this manuscript we study Liouvillian non-integrability of strings in $$AdS_{6}\times S^{2}\times \Sigma $$ A d S 6 × S 2 × Σ background. We consider soliton strings and look for simple solutions in order to reduce the equations to only
Externí odkaz:
https://doaj.org/article/5c6eb478befb451db6f85a5d39ae8f47
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 11, Pp 1-7 (2017)
Abstract Starting from an analytical expression for the Helmholtz free energy we calculate the thermal corrections to the Casimir energy density and entropy within nearby ideal parallel plates in the vacuum of a massless scalar field. Our framework i
Externí odkaz:
https://doaj.org/article/42f5da2021884ec9a4b88e565bec31fd
Publikováno v:
Brazilian Journal of Physics. 48:645-651
In this paper we study the effects associated to quantum vacuum fluctuations of vectorial perturbations of the Abelian SU(2) Yang-Mills field in a static and homogeneous chromomagnetic-like background field, at zero temperature. We use periodic and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::493ca2899427d1cae943c0cc522122cd
https://doi.org/10.1007/s13538-018-0607-3
https://doi.org/10.1007/s13538-018-0607-3
Publikováno v:
European Physical Journal C
European Physical Journal C: Particles and Fields, Vol 77, Iss 11, Pp 1-7 (2017)
European Physical Journal C: Particles and Fields, Vol 77, Iss 11, Pp 1-7 (2017)
Starting from an analytical expression for the Helmholtz free energy we calculate the thermal corrections to the Casimir energy-density and entropy within nearby ideal parallel plates in the vacuum of a massless scalar field. Our framework is the Ker
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d10fbf1d77dba6d6752bd68d24f4468e
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
Physics Letters B
New analytical solutions for gravity, scalar and vector field localization in Randall-Sundrum(RS) models are found. A smooth version of the warp factor with an associated function $f(z)=\exp(3A(z)/2)$ inside the walls ($|z
Comment: 11 pages, 4 f
Comment: 11 pages, 4 f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c28a2727550df09e86090946aaf99d32
https://doi.org/10.1016/j.physletb.2014.02.004
https://doi.org/10.1016/j.physletb.2014.02.004
Publikováno v:
Modern Physics Letters A. 35:2050047
In this paper, we study how geometrical coupling can be adapted to localize a model with kinetic gauge mixing on a thin membrane. The model discussed is a theory for millicharged particles, proposed by Holdom in 1985, and that now is object of study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e25cd691e5941d848322b3da9385cf5c
https://doi.org/10.1142/s0217732320500479
https://doi.org/10.1142/s0217732320500479
In this paper, we investigate how the fine structure constant, $\alpha$, locally varies in the presence of a static and spherically symmetric gravitational source. The procedure consists in calculating the solution and the energy eigenvalues of a mas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79a50cf1234fd17b909b0f143989b4ef
http://arxiv.org/abs/1604.07092
http://arxiv.org/abs/1604.07092
Publikováno v:
Physics Letters B. 686:259-263
Membranes with internal structures presents several important characteristics in brane world scenarios. In this context we give new results in the study of localization of gauge vector fields in a very specific kink-like solution. We analyze, in part
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3b0eede4db4ed9931abed7f27ebf842
https://doi.org/10.1016/j.physletb.2010.02.064
https://doi.org/10.1016/j.physletb.2010.02.064
Autor:
M. O. Tahim, C. A. S. Almeida
Publikováno v:
Modern Physics Letters A. 22:1503-1511
In this work we obtain topological and equivalent theories on brane-worlds in several dimensions. Our brane is a solitonic-like hypersurface embedded in a spacetime with a specific dimensionality and it appears due to the breaking of a Peccei–Quinn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cf51fd4161898970108dcae146cccf5
https://doi.org/10.1142/s0217732307021676
https://doi.org/10.1142/s0217732307021676
Publikováno v:
Physical Review D. 92
In this paper we study the polarized vacuum energy on the conducting surface of a topological insulator characterized by both $Z_2$ topological index and time reversal symmetry. This boundary is subject to the action of a static and spatially homogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef5d94c1bc9de9b0c6125787555327ee
https://doi.org/10.1103/physrevd.92.025035
https://doi.org/10.1103/physrevd.92.025035