Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold
Considering the Einstein field equations in Lyra manifold and applying the unified first law of thermodynamics as well as the Clausius relation to the apparent horizon of FRW universe, we find the entropy of apparent horizon in Lyra manifold. In addition, the validity of second law of thermodynamics...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2017/9687976 |
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| _version_ | 1850166176536068096 |
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| author | H. Moradpour N. Sadeghnezhad S. Ghaffari A. Jahan |
| author_facet | H. Moradpour N. Sadeghnezhad S. Ghaffari A. Jahan |
| author_sort | H. Moradpour |
| collection | DOAJ |
| description | Considering the Einstein field equations in Lyra manifold and applying the unified first law of thermodynamics as well as the Clausius relation to the apparent horizon of FRW universe, we find the entropy of apparent horizon in Lyra manifold. In addition, the validity of second law of thermodynamics and its generalized form are also studied. Finally, we use the first law of thermodynamics in order to find the horizon entropy of static spherically symmetric spacetimes. Some results of considering (anti)de-Sitter and Schwarzschild metrics have also been addressed. |
| format | Article |
| id | doaj-art-ddf5b049f6b1449690545f7a7d9f4218 |
| institution | OA Journals |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-ddf5b049f6b1449690545f7a7d9f42182025-08-20T02:21:33ZengWileyAdvances in High Energy Physics1687-73571687-73652017-01-01201710.1155/2017/96879769687976Thermodynamic Analysis of Gravitational Field Equations in Lyra ManifoldH. Moradpour0N. Sadeghnezhad1S. Ghaffari2A. Jahan3Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), P.O. Box 55134-441, Maragha, IranResearch Institute for Astronomy and Astrophysics of Maragha (RIAAM), P.O. Box 55134-441, Maragha, IranResearch Institute for Astronomy and Astrophysics of Maragha (RIAAM), P.O. Box 55134-441, Maragha, IranResearch Institute for Astronomy and Astrophysics of Maragha (RIAAM), P.O. Box 55134-441, Maragha, IranConsidering the Einstein field equations in Lyra manifold and applying the unified first law of thermodynamics as well as the Clausius relation to the apparent horizon of FRW universe, we find the entropy of apparent horizon in Lyra manifold. In addition, the validity of second law of thermodynamics and its generalized form are also studied. Finally, we use the first law of thermodynamics in order to find the horizon entropy of static spherically symmetric spacetimes. Some results of considering (anti)de-Sitter and Schwarzschild metrics have also been addressed.http://dx.doi.org/10.1155/2017/9687976 |
| spellingShingle | H. Moradpour N. Sadeghnezhad S. Ghaffari A. Jahan Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold Advances in High Energy Physics |
| title | Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold |
| title_full | Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold |
| title_fullStr | Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold |
| title_full_unstemmed | Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold |
| title_short | Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold |
| title_sort | thermodynamic analysis of gravitational field equations in lyra manifold |
| url | http://dx.doi.org/10.1155/2017/9687976 |
| work_keys_str_mv | AT hmoradpour thermodynamicanalysisofgravitationalfieldequationsinlyramanifold AT nsadeghnezhad thermodynamicanalysisofgravitationalfieldequationsinlyramanifold AT sghaffari thermodynamicanalysisofgravitationalfieldequationsinlyramanifold AT ajahan thermodynamicanalysisofgravitationalfieldequationsinlyramanifold |