Dark energy and the generalized second law

Germán Izquierdo; Diego Pavón

doi:10.1016/j.physletb.2005.12.040

Dark energy and the generalized second law

Germán Izquierdo, Diego Pavón

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

249 Citations (Scopus)

Abstract

We explore the thermodynamics of dark energy taking into account the existence of the observer's event horizon in accelerated universes. Except for the initial stage of Chaplygin gas dominated expansion, the generalized second law of gravitational thermodynamics is fulfilled and the temperature of the phantom fluid results positive. This substantially extends the work of Pollock and Singh [M.D. Pollock, T.P. Singh, Class. Quantum Grav. 6 (1989) 901] on the thermodynamics of super-inflationary expansion. © 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	420-426
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	633
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2005.12.040
Publication status	Published - 16 Feb 2006

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10.1016/j.physletb.2005.12.040

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abstract = "We explore the thermodynamics of dark energy taking into account the existence of the observer's event horizon in accelerated universes. Except for the initial stage of Chaplygin gas dominated expansion, the generalized second law of gravitational thermodynamics is fulfilled and the temperature of the phantom fluid results positive. This substantially extends the work of Pollock and Singh [M.D. Pollock, T.P. Singh, Class. Quantum Grav. 6 (1989) 901] on the thermodynamics of super-inflationary expansion. {\textcopyright} 2005 Elsevier B.V. All rights reserved.",

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AU - Pavón, Diego

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AB - We explore the thermodynamics of dark energy taking into account the existence of the observer's event horizon in accelerated universes. Except for the initial stage of Chaplygin gas dominated expansion, the generalized second law of gravitational thermodynamics is fulfilled and the temperature of the phantom fluid results positive. This substantially extends the work of Pollock and Singh [M.D. Pollock, T.P. Singh, Class. Quantum Grav. 6 (1989) 901] on the thermodynamics of super-inflationary expansion. © 2005 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.physletb.2005.12.040

DO - 10.1016/j.physletb.2005.12.040

M3 - Article

SN - 0370-2693

VL - 633

SP - 420

EP - 426

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -

Dark energy and the generalized second law

Abstract

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