Origin of time and probability in quantum cosmology
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912443648704512 |
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| author | Chataignier, Leonardo Kiefer, Claus Tyagi, Mritunjay |
| author_facet | Chataignier, Leonardo Kiefer, Claus Tyagi, Mritunjay |
| contents | We discuss how the classical notions of time and causal structure may emerge together with quantum-mechanical probabilities from a universal quantum state. For this, the process of decoherence between semiclassical branches is important. Our discussion is based on quantum geometrodynamics, a canonical approach to quantum gravity. In this framework, a particular boundary condition may illuminate the issue of the arrow of (classical) time in connection to the growth of entanglement entropy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_10752 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Origin of time and probability in quantum cosmology Chataignier, Leonardo Kiefer, Claus Tyagi, Mritunjay General Relativity and Quantum Cosmology High Energy Physics - Theory Quantum Physics We discuss how the classical notions of time and causal structure may emerge together with quantum-mechanical probabilities from a universal quantum state. For this, the process of decoherence between semiclassical branches is important. Our discussion is based on quantum geometrodynamics, a canonical approach to quantum gravity. In this framework, a particular boundary condition may illuminate the issue of the arrow of (classical) time in connection to the growth of entanglement entropy. |
| title | Origin of time and probability in quantum cosmology |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory Quantum Physics |
| url | https://arxiv.org/abs/2503.10752 |