Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energy
In this paper, we study the changes of quantum effects of a growing universe by using Wheeler-DeWitt equation (WDWE) together with de Broglie-Bohm quantum trajectory approach. From WDWE, we obtain the quantum modified Friedmann equations which have additional terms called quantum potential compared...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-10-01
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| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320305505 |
| _version_ | 1818334971268431872 |
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| author | Dongshan He Qing-yu Cai |
| author_facet | Dongshan He Qing-yu Cai |
| author_sort | Dongshan He |
| collection | DOAJ |
| description | In this paper, we study the changes of quantum effects of a growing universe by using Wheeler-DeWitt equation (WDWE) together with de Broglie-Bohm quantum trajectory approach. From WDWE, we obtain the quantum modified Friedmann equations which have additional terms called quantum potential compared to standard Friedmann equations. The quantum potential governs the behavior of the early universe, providing energy for inflation, while it decreases rapidly as the universe grows. The quantum potential of the grown-up universe is much smaller than that required for accelerating expansion. This indicates that quantum effects of our universe cannot be treated as a candidate for dark energy. |
| first_indexed | 2024-12-13T14:16:00Z |
| format | Article |
| id | doaj.art-892e4bb9b8a543f0a2b67bbb458209c8 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-13T14:16:00Z |
| publishDate | 2020-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-892e4bb9b8a543f0a2b67bbb458209c82022-12-21T23:42:19ZengElsevierPhysics Letters B0370-26932020-10-01809135747Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energyDongshan He0Qing-yu Cai1College of Physics & Electronic Engineering, Xianyang Normal University, Xianyang 712000, ChinaState Key Laboratory of Magnetic Resonances and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China; Peng Huanwu Center for Fundamental Theory, Hefei, Anhui 230026, China; Corresponding author at: State Key Laboratory of Magnetic Resonances and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China.In this paper, we study the changes of quantum effects of a growing universe by using Wheeler-DeWitt equation (WDWE) together with de Broglie-Bohm quantum trajectory approach. From WDWE, we obtain the quantum modified Friedmann equations which have additional terms called quantum potential compared to standard Friedmann equations. The quantum potential governs the behavior of the early universe, providing energy for inflation, while it decreases rapidly as the universe grows. The quantum potential of the grown-up universe is much smaller than that required for accelerating expansion. This indicates that quantum effects of our universe cannot be treated as a candidate for dark energy.http://www.sciencedirect.com/science/article/pii/S0370269320305505Dark energyWheeler-DeWitt equationQuantum potentialInflation |
| spellingShingle | Dongshan He Qing-yu Cai Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energy Physics Letters B Dark energy Wheeler-DeWitt equation Quantum potential Inflation |
| title | Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energy |
| title_full | Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energy |
| title_fullStr | Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energy |
| title_full_unstemmed | Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energy |
| title_short | Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energy |
| title_sort | wheeler dewitt equation rejects quantum effects of grown up universes as a candidate for dark energy |
| topic | Dark energy Wheeler-DeWitt equation Quantum potential Inflation |
| url | http://www.sciencedirect.com/science/article/pii/S0370269320305505 |
| work_keys_str_mv | AT dongshanhe wheelerdewittequationrejectsquantumeffectsofgrownupuniversesasacandidatefordarkenergy AT qingyucai wheelerdewittequationrejectsquantumeffectsofgrownupuniversesasacandidatefordarkenergy |