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Stable Charged Gravastar model in Cylindrically Symmetric Space-time
In this paper, we have extended the idea of gravitational Bose-Einstein
condensate star (gravastar) to charged gravastar system and explored the role
of charge in gravastar formation and its properties. We have used the most
general line element in cylindrically symmetric space-time. In this approach
the existence of singularity at the center of gravastar is removed and the
event horizon is replaced by the thin shell approximation. The proper length of
the shell is calculated along with the energy of the thin shell. A mass limit
for thin shell has also been evaluated. The entropy calculation shows that the
entropy of the configuration is smaller than that of a quasi-black hole system
and even smaller than that of a classical black hole. Unlike black hole, the
gravastar system is a stable configuration and there is no information paradox.Comment: 12 pages, 4 figure
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