Quantum cosmology and the age of the universe
In this article I study how the problem of time of canonical approaches to quantum gravity affects the simple minisuperspace models used in quantum cosmology. I follow some authors who have argued that this issue makes the quantization of general relativity problematic to conclude that the same appl...
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| Format: | article |
| Publication Date: | 2025 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/438889 |
| Online Access: | https://hdl.handle.net/2117/438889 https://dx.doi.org/10.1088/1742-6596/2948/1/012008 |
| Access Level: | Open access |
| Keyword: | Time -- Philosophy Quantum gravity -- Mathematical models Quantum cosmology -- Research Temps -- Filosofia Gravetat quàntica -- Models matemàtics Cosmologia quàntica -- Investigació Àrees temàtiques de la UPC::Física::Astronomia i astrofísica::Cosmologia i cosmogonia Àrees temàtiques de la UPC::Física::Mecànica quàntica |
| Summary: | In this article I study how the problem of time of canonical approaches to quantum gravity affects the simple minisuperspace models used in quantum cosmology. I follow some authors who have argued that this issue makes the quantization of general relativity problematic to conclude that the same applies in the case of quantum cosmology. In particular, I argue that temporal structures are lost in quantization and that this is a problem, as they encode part of the empirical content of classical cosmology, such as the age of the universe. |
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