Note on Tsallis holographic dark energy
Abstract We explore the effects of considering various infrared (IR) cutoffs, including the particle horizon, the Ricci horizon and the Granda–Oliveros (GO) cutoffs, on the properties of Tsallis holographic dark energy (THDE) model, proposed inspired by Tsallis generalized entropy formalism (Tavayef...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-11-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-6427-3 |
| _version_ | 1811219845114494976 |
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| author | M. Abdollahi Zadeh A. Sheykhi H. Moradpour Kazuharu Bamba |
| author_facet | M. Abdollahi Zadeh A. Sheykhi H. Moradpour Kazuharu Bamba |
| author_sort | M. Abdollahi Zadeh |
| collection | DOAJ |
| description | Abstract We explore the effects of considering various infrared (IR) cutoffs, including the particle horizon, the Ricci horizon and the Granda–Oliveros (GO) cutoffs, on the properties of Tsallis holographic dark energy (THDE) model, proposed inspired by Tsallis generalized entropy formalism (Tavayef et al. in Phys Lett B 781:195, 2018). Interestingly enough, we find that for the particle horizon as IR cutoff, the obtained THDE model can describe the late time accelerated universe. This is in contrast to the usual HDE model which cannot lead to an accelerated universe, if one considers the particle horizon as the IR cutoff. We also investigate the cosmological consequences of THDE under the assumption of a mutual interaction between the dark sectors of the Universe. It is shown that the evolution history of the Universe can be described by these IR cutoffs and thus the current cosmic acceleration can also be realized. The sound instability of the THDE models for each cutoff are also explored, separately. |
| first_indexed | 2024-04-12T07:32:44Z |
| format | Article |
| id | doaj.art-8d96677f607e4c80b1e9b2d8ab48ec75 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-04-12T07:32:44Z |
| publishDate | 2018-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-8d96677f607e4c80b1e9b2d8ab48ec752022-12-22T03:42:02ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-11-01781111110.1140/epjc/s10052-018-6427-3Note on Tsallis holographic dark energyM. Abdollahi Zadeh0A. Sheykhi1H. Moradpour2Kazuharu Bamba3Physics Department and Biruni Observatory, College of Sciences, Shiraz UniversityPhysics Department and Biruni Observatory, College of Sciences, Shiraz UniversityResearch Institute for Astronomy and Astrophysics of Maragha (RIAAM)Division of Human Support System, Faculty of Symbiotic Systems Science, Fukushima UniversityAbstract We explore the effects of considering various infrared (IR) cutoffs, including the particle horizon, the Ricci horizon and the Granda–Oliveros (GO) cutoffs, on the properties of Tsallis holographic dark energy (THDE) model, proposed inspired by Tsallis generalized entropy formalism (Tavayef et al. in Phys Lett B 781:195, 2018). Interestingly enough, we find that for the particle horizon as IR cutoff, the obtained THDE model can describe the late time accelerated universe. This is in contrast to the usual HDE model which cannot lead to an accelerated universe, if one considers the particle horizon as the IR cutoff. We also investigate the cosmological consequences of THDE under the assumption of a mutual interaction between the dark sectors of the Universe. It is shown that the evolution history of the Universe can be described by these IR cutoffs and thus the current cosmic acceleration can also be realized. The sound instability of the THDE models for each cutoff are also explored, separately.http://link.springer.com/article/10.1140/epjc/s10052-018-6427-3 |
| spellingShingle | M. Abdollahi Zadeh A. Sheykhi H. Moradpour Kazuharu Bamba Note on Tsallis holographic dark energy European Physical Journal C: Particles and Fields |
| title | Note on Tsallis holographic dark energy |
| title_full | Note on Tsallis holographic dark energy |
| title_fullStr | Note on Tsallis holographic dark energy |
| title_full_unstemmed | Note on Tsallis holographic dark energy |
| title_short | Note on Tsallis holographic dark energy |
| title_sort | note on tsallis holographic dark energy |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-6427-3 |
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