Tsallis holographic dark energy
| Autor: | Hooman Moradpour, Ahmad Sheykhi, M. Tavayef, Kazuharu Bamba |
|---|---|
| Přispěvatelé: | Biruni Üniversitesi |
| Rok vydání: | 2018 |
| Předmět: |
High Energy Physics - Theory
Nuclear and High Energy Physics media_common.quotation_subject Holography FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 01 natural sciences General Relativity and Quantum Cosmology law.invention symbols.namesake law Friedmann–Lemaître–Robertson–Walker metric 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Cutoff 010303 astronomy & astrophysics media_common Physics COSMIC cancer database 010308 nuclear & particles physics lcsh:QC1-999 Universe High Energy Physics - Theory (hep-th) Hubble volume Dark energy symbols lcsh:Physics |
| Zdroj: | Physics Letters Physics Letters B, Vol 781, Iss, Pp 195-200 (2018) |
| ISSN: | 0370-2693 |
| Popis: | Employing the modified entropy–area relation suggested by Tsallis and Cirto [1], and the holographic hypothesis, a new holographic dark energy (HDE) model is proposed. Considering a flat Friedmann–Robertson–Walker (FRW) universe in which there is no interaction between the cosmos sectors, the cosmic implications of the proposed HDE are investigated. Interestingly enough, we find that the identification of IR-cutoff with the Hubble radius, can lead to the late time accelerated Universe even in the absence of interaction between two dark sectors of the Universe. This is in contrast to the standard HDE model with Hubble cutoff, which does not imply the accelerated expansion, unless the interaction is taken into account. © 2018 The Author(s) 17RI017 Research Institute for Astronomy and Astrophysics of Maragha Japan Society for the Promotion of Science: JP 25800136 Research Institute for Astronomy and Astrophysics of Maragha |
| Databáze: | OpenAIRE |
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