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Chaplygin gas may prevent big trip

AuthorsJiménez Madrid, J. A.
Issue Date2006
CitationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 634: 106-110 (2006)
AbstractThis Letter deals with the study of the accretion of a generalized Chaplygin gas with equation of state p=-A/ρα onto wormholes. We have obtained that when dominant energy condition is violated the size of wormhole increases with the scale factor up to a given plateau. On the regime where the dominant energy condition is satisfied our model predicts a steady decreasing of the wormhole size as generalized Chaplygin gas is accreted. Our main conclusion is that the big trip mechanism is prevented in a large region of the physical parameters of the used model. © 2006 Elsevier B.V. All rights reserved.
Identifiersdoi: 10.1016/j.physletb.2006.01.060
issn: 0370-2693
Appears in Collections:(CFMAC-IFF) Artículos
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