Can electro-magnetic field, anisotropic source and varying Λ be sufficient to produce wormhole spacetime?
نویسندگان
چکیده
منابع مشابه
Can electro - magnetic field , anisotropic source and varying Λ be sufficient to produce wormhole spacetime ?
It is well known that solutions of general relativity which allow for traversable wormholes require the existence of exotic matter ( matter that violates weak or null energy conditions [WEC or NEC] ). So to construct wormholes theoretically without breaking NEC or WEC remains an elusive goal to the theoretical physicists. In this article, we provide a class of exact solution for Einstein-Maxwel...
متن کاملN ov 2 00 8 Can electro - magnetic field , anisotropic source and varying Λ be sufficient to produce wormhole spacetime ?
It is well known that solutions of general relativity which allow for traversable wormholes require the existence of exotic matter ( matter that violates weak or null energy conditions [WEC or NEC] ). In this article, we provide a class of exact solution for Einstein-Maxwell field equations describing wormholes assuming the erstwhile cosmological term Λ to be space variable , viz., Λ = Λ(r). Th...
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In this study time-dependent and spherically symmetric solutions of the Einstein field equations in an anisotropic background with a purely radial tension are presented. There exist three classes of solutions,1) An open spacetime with a wormhole at its center. 2) A conical spacetime. 3) A closed spacetime. These inhomogeneous solutions are reduced to FRW spacetimes in matter-dominated era, as...
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ژورنال
عنوان ژورنال: International Journal of Theoretical Physics
سال: 2009
ISSN: 0020-7748,1572-9575
DOI: 10.1007/s10773-009-9936-x