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Quo Vadis Wheeler–DeWitt Time?: Challenging Emergent Time in Quantum Cosmology

Published inPhilosophy of science, vol. 92, no. 5, p. 1327-1337
Publication date2025-12
First online date2025-09-02
Abstract

This paper challenges the notion of emergent time in quantum cosmology by examining the reconciliation of the timeless Wheeler–DeWitt equation with the Universe’s dynamical evolution. We critically evaluate the analogy between the Wheeler–DeWitt and Klein–Gordon equations, highlighting challenges for the identification of an emergent time parameter. We conclude that refining this analogy may lead to a better understanding of emergent time in quantum cosmology, though it is still not free from complications.

Citation (ISO format)
BAMONTI, Nicola, CINTI, Enrico, SANCHIONI, Marco. Quo Vadis Wheeler–DeWitt Time?: Challenging Emergent Time in Quantum Cosmology. In: Philosophy of science, 2025, vol. 92, n° 5, p. 1327–1337. doi: 10.1017/psa.2025.10146
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Journal ISSN0031-8248
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