Journal
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS
Volume 12, Issue 10, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0219887815501157
Keywords
P-V criticality; AdS black holes; Lovelock-Born-Infeld gravity; Ehrenfest thermodynamical equations
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Interpreting the cosmological constant as a thermodynamic pressure and its conjugate quantity as a thermodynamic volume, we reconsider the investigation of P-V critical behaviors of (1 + n)-dimensional AdS black holes in Lovelock-Born-Infeld gravity. In particular, we derive an explicit expression of the universal number X = P(c)v(c)/T-c in terms of the space dimension n. Then, we examine the phase transitions at the critical points of such black holes for 6 <= n < 11 as required by the physical condition of the thermodynamical quantities including criticality behaviors. More precisely, the Ehrenfest equations have been checked and they reveal that the black hole system undergoes a second phase transition at the critical points.
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