Thermodynamic of the f(Q) universe
Abstract We investigate thermodynamics of apparent horizon in the f(Q) universe with trivial and nontrivial connections. We first explore the perspectives of the first law, generalized second law and P–V phase transition with trivial connection. We show that the lowest-order correction of entropy ha...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13711-8 |
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| _version_ | 1832571367321501696 |
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| author | Haomin Rao Chunhui Liu Chao-Qiang Geng |
| author_facet | Haomin Rao Chunhui Liu Chao-Qiang Geng |
| author_sort | Haomin Rao |
| collection | DOAJ |
| description | Abstract We investigate thermodynamics of apparent horizon in the f(Q) universe with trivial and nontrivial connections. We first explore the perspectives of the first law, generalized second law and P–V phase transition with trivial connection. We show that the lowest-order correction of entropy has the same form as that in loop quantum gravity, and the critical exponents of the phase transition caused by the lowest-order correction are consistent with those in mean field theory. We then examine the thermodynamic implication of nontrivial connections. We find that nontrivial connections in the f(Q) universe imply non-equilibrium states from the perspective of thermodynamics. |
| format | Article |
| id | doaj-art-405a6d0da19d474c96aff1d76ca04f7f |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-405a6d0da19d474c96aff1d76ca04f7f2025-02-02T12:39:36ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841211110.1140/epjc/s10052-024-13711-8Thermodynamic of the f(Q) universeHaomin Rao0Chunhui Liu1Chao-Qiang Geng2School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCASSchool of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCASSchool of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCASAbstract We investigate thermodynamics of apparent horizon in the f(Q) universe with trivial and nontrivial connections. We first explore the perspectives of the first law, generalized second law and P–V phase transition with trivial connection. We show that the lowest-order correction of entropy has the same form as that in loop quantum gravity, and the critical exponents of the phase transition caused by the lowest-order correction are consistent with those in mean field theory. We then examine the thermodynamic implication of nontrivial connections. We find that nontrivial connections in the f(Q) universe imply non-equilibrium states from the perspective of thermodynamics.https://doi.org/10.1140/epjc/s10052-024-13711-8 |
| spellingShingle | Haomin Rao Chunhui Liu Chao-Qiang Geng Thermodynamic of the f(Q) universe European Physical Journal C: Particles and Fields |
| title | Thermodynamic of the f(Q) universe |
| title_full | Thermodynamic of the f(Q) universe |
| title_fullStr | Thermodynamic of the f(Q) universe |
| title_full_unstemmed | Thermodynamic of the f(Q) universe |
| title_short | Thermodynamic of the f(Q) universe |
| title_sort | thermodynamic of the f q universe |
| url | https://doi.org/10.1140/epjc/s10052-024-13711-8 |
| work_keys_str_mv | AT haominrao thermodynamicofthefquniverse AT chunhuiliu thermodynamicofthefquniverse AT chaoqianggeng thermodynamicofthefquniverse |