Vorticity and entropy production in tilted Szekeres spacetimes

作者: L Herrera , A Di Prisco , J Ibáñez , J Carot , None

DOI: 10.1103/PHYSREVD.86.044003

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摘要: We analyze the properties of tilted Szekeres spacetime, i.e. version such spacetime as seen by a congruence observers with respect to which fluid is moving. The imperfect and kinematical variables associated four-velocity assigned are studied in detail. As it happens for case Lemaitre-Tolman-Bondi evolves nonreversibly (with nonvanishing entropy production) nongeodesic. However, unlike latter case, observer detects vorticity world lines. Also, nontilted congruence, magnetic part Weyl tensor vanishes, reinforcing nonradiative character this kind spacetime. Possible physical implications these results discussed.

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