Treffer: Surface stresses on a thin shell surrounding a traversable wormhole

Title:
Surface stresses on a thin shell surrounding a traversable wormhole
Authors:
LOBO, Francisco S. N
Source:
Classical and quantum gravity (Print). 21(21):4811-4832
Publisher Information:
Bristol: Institute of Physics, 2004.
Publication Year:
2004
Physical Description:
print, 31 ref
Original Material:
INIST-CNRS
Subject Terms:
Theoretical physics, Physique théorique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Generalites, General, Relativité générale et gravitation, General relativity and gravitation, Relativité générale classique, Classical general relativity, Systèmes autogravitants; milieux continus et champs classiques en espace-temps courbe, Self-graviting systems; continuous media and classical fields in curved spacetime, Constante cosmologique, Cosmological constant, Contrainte superficielle, Surface stresses, Coque mince, Thin shell, Cascarón delgado, Cosmologie, Cosmology, Densité énergie, Energy density, Déplacement vers le rouge, Red shift, Propriété physique, Physical properties, Propriété surface, Surface properties, Symétrie sphérique, Spherical symmetry, Simetría esférica, Tension superficielle, Surface tension, Trou ver, Wormhole, Agujero lombriz
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Centro de Astronomia e Astrofísica da Universidade de Lisboa, Campo Grande, Ed. C8 1749-016 Lisboa, Portugal
ISSN:
0264-9381
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=16232179
Rights:
Copyright 2005 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Theoretical physics
Accession Number:
edscal.16232179
Database:
PASCAL Archive

Weitere Informationen

We match an interior solution of a spherically symmetric traversable wormhole to a unique exterior vacuum solution, with a generic cosmological constant, at a junction interface, and the surface stresses on the thin shell are deduced. In the spirit of minimizing the usage of exotic matter we determine regions in which the weak and null energy conditions are satisfied on the junction surface. The characteristics and several physical properties of the surface stresses are explored, namely, regions where the sign of the tangential surface pressure is positive and negative (surface tension) are determined. This is done by expressing the tangential surface pressure as a function of several parameters, namely, that of the matching radius, the redshift parameter, the surface energy density and of the generic cosmological constant. An equation governing the behaviour of the radial pressure across the junction surface is also deduced.