Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Garcia, Nadiezhda Montelongo"'
Autor:
Delgado, Gabino Estevez, Delgado, Joaquin Estevez, Garcia, Nadiezhda Montelongo, Duran, Modesto Pineda
In the framework of Einstein's the theory of general relativity we present a new interior solution with a perfect fluid, this is constructed from the proposal of a gravitational redshift factor. The geometry is regular and its density and pressure ar
Externí odkaz:
http://arxiv.org/abs/1807.10360
We construct generic spherically symmetric thin shells by using the cut-and-paste procedure. We take considerable effort to make the analysis as general and unified as practicable; investigating both the internal physics of the transition layer and i
Externí odkaz:
http://arxiv.org/abs/1211.0605
Publikováno v:
JCAP 03 (2012) 034
We construct generic spherically symmetric thin-shell gravastars by using the cut-and-paste procedure. We take considerable effort to make the analysis as general and unified as practicable; investigating both the internal physics of the transition l
Externí odkaz:
http://arxiv.org/abs/1112.5253
Publikováno v:
Phys.Rev.D86:044026,2012
We consider the construction of generic spherically symmetric thin-shell traversable wormhole spacetimes in standard general relativity. By using the cut-and-paste procedure, we comprehensively analyze the stability of arbitrary spherically symmetric
Externí odkaz:
http://arxiv.org/abs/1112.2057
Publikováno v:
Mod.Phys.Lett.A40:3067-3076,2011
A fundamental ingredient in wormhole physics is the presence of exotic matter, which involves the violation of the null energy condition. Although a plethora of wormhole solutions have been explored in the literature, it is useful to find geometries
Externí odkaz:
http://arxiv.org/abs/1106.3216
Publikováno v:
Class.Quant.Grav.28:085018,2011
Recently, exact solutions of wormhole geometries supported by a nonminimal curvature-matter coupling were found, where the nonminimal coupling minimizes the violation of the null energy condition of normal matter at the throat. In this brief report,
Externí odkaz:
http://arxiv.org/abs/1012.2443
Publikováno v:
J.Phys.Conf.Ser.314:012060,2011
Motivated by string/M-theory predictions that scalar field couplings with the Gauss-Bonnet invariant, G, are essential in the appearance of non-singular early time cosmologies, we discuss the viability of an interesting alternative gravitational theo
Externí odkaz:
http://arxiv.org/abs/1012.0953
Publikováno v:
Phys.Rev.D83:104032,2011
In considering alternative higher-order gravity theories, one is liable to be motivated in pursuing models consistent and inspired by several candidates of a fundamental theory of quantum gravity. Indeed, motivations from string/M-theory predict that
Externí odkaz:
http://arxiv.org/abs/1011.4159
Publikováno v:
Phys.Rev.D82:104018,2010
Wormhole geometries in curvature-matter coupled modified gravity are explored, by considering an explicit nonminimal coupling between an arbitrary function of the scalar curvature, R, and the Lagrangian density of matter. It is the effective stress-e
Externí odkaz:
http://arxiv.org/abs/1007.3040
Autor:
Estevez-Delgado, Gabino, Estevez-Delgado, Joaquin, Paulin-Fuentes, Jorge Mauricio, Garcia, Nadiezhda Montelongo, Duran, Modesto Pineda
Publikováno v:
Modern Physics Letters A; 5/20/2019, Vol. 34 Issue 15, pN.PAG-N.PAG, 15p
