Ghost inflation and de Sitter entropy
Abstract
In the setup of ghost condensation model the generalized second law of black hole thermodynamics can be respected under a radiatively stable assumption that couplings between the field responsible for ghost condensate and matter fields such as those in the Standard Model are suppressed by the Planck scale. Since not only black holes but also cosmology are expected to play important roles towards our better understanding of gravity, we consider a cosmological setup to test the theory of ghost condensation. In particular we shall show that the de Sitter entropy bound proposed by ArkaniHamed, et al. is satisfied if ghost inflation happened in the early epoch of our universe and if there remains a tiny positive cosmological constant in the future infinity. We then propose a notion of cosmological Page time after inflation.
 Authors:
 School of Astronomy, Institute for Research in Fundamental Sciences (IPM),P.O. Box 193955531, Artesh Highway, Tehran (Iran, Islamic Republic of)
 Center for Gravitational Physics, Yukawa Institute for Theoretical Physics,Kyoto University,6068502, Kyoto (Japan)
 (WPI),The University of Tokyo Institutes for Advanced Study, The University of Tokyo,Kashiwa, Chiba 2778583 (Japan)
 School of Physics, Huazhong University of Science and Technology,Wuhan 430074 (China)
 Kavli Institute for the Physics and Mathematics of the Universe (WPI),The University of Tokyo Institutes for Advanced Study, The University of Tokyo,Kashiwa, Chiba 2778583 (Japan)
 (Japan)
 Publication Date:
 Sponsoring Org.:
 SCOAP3, CERN, Geneva (Switzerland)
 OSTI Identifier:
 22572125
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2016; Journal Issue: 08; Other Information: PUBLISHERID: JCAP08(2016)002; OAI: oai:repo.scoap3.org:16637; ccby Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BLACK HOLES; COSMOLOGICAL CONSTANT; COSMOLOGICAL INFLATION; COSMOLOGY; DE SITTER GROUP; DE SITTER SPACE; ENTROPY; INFLATIONARY UNIVERSE; PERTURBATION THEORY; STANDARD MODEL
Citation Formats
Jazayeri, Sadra, Mukohyama, Shinji, Kavli Institute for the Physics and Mathematics of the Universe, Saitou, Rio, Watanabe, Yota, and Center for Gravitational Physics, Yukawa Institute for Theoretical Physics,Kyoto University,6068502, Kyoto. Ghost inflation and de Sitter entropy. United States: N. p., 2016.
Web. doi:10.1088/14757516/2016/08/002.
Jazayeri, Sadra, Mukohyama, Shinji, Kavli Institute for the Physics and Mathematics of the Universe, Saitou, Rio, Watanabe, Yota, & Center for Gravitational Physics, Yukawa Institute for Theoretical Physics,Kyoto University,6068502, Kyoto. Ghost inflation and de Sitter entropy. United States. doi:10.1088/14757516/2016/08/002.
Jazayeri, Sadra, Mukohyama, Shinji, Kavli Institute for the Physics and Mathematics of the Universe, Saitou, Rio, Watanabe, Yota, and Center for Gravitational Physics, Yukawa Institute for Theoretical Physics,Kyoto University,6068502, Kyoto. 2016.
"Ghost inflation and de Sitter entropy". United States.
doi:10.1088/14757516/2016/08/002.
@article{osti_22572125,
title = {Ghost inflation and de Sitter entropy},
author = {Jazayeri, Sadra and Mukohyama, Shinji and Kavli Institute for the Physics and Mathematics of the Universe and Saitou, Rio and Watanabe, Yota and Center for Gravitational Physics, Yukawa Institute for Theoretical Physics,Kyoto University,6068502, Kyoto},
abstractNote = {In the setup of ghost condensation model the generalized second law of black hole thermodynamics can be respected under a radiatively stable assumption that couplings between the field responsible for ghost condensate and matter fields such as those in the Standard Model are suppressed by the Planck scale. Since not only black holes but also cosmology are expected to play important roles towards our better understanding of gravity, we consider a cosmological setup to test the theory of ghost condensation. In particular we shall show that the de Sitter entropy bound proposed by ArkaniHamed, et al. is satisfied if ghost inflation happened in the early epoch of our universe and if there remains a tiny positive cosmological constant in the future infinity. We then propose a notion of cosmological Page time after inflation.},
doi = {10.1088/14757516/2016/08/002},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 08,
volume = 2016,
place = {United States},
year = 2016,
month = 8
}

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