DOAJ Open Access 2021

Time and Evolution in Quantum and Classical Cosmology

Alexander Yu Kamenshchik Jeinny Nallely Pérez Rodríguez Tereza Vardanyan

Abstrak

We analyze the issue of dynamical evolution and time in quantum cosmology. We emphasize the problem of choice of phase space variables that can play the role of a time parameter in such a way that for expectation values of quantum operators the classical evolution is reproduced. We show that it is neither necessary nor sufficient for the Poisson bracket between the time variable and the super-Hamiltonian to be equal to unity in all of the phase space. We also discuss the question of switching between different internal times as well as the Montevideo interpretation of quantum theory.

Topik & Kata Kunci

Elementary particle physics

Penulis (3)

Alexander Yu Kamenshchik

Jeinny Nallely Pérez Rodríguez

Tereza Vardanyan

Format Sitasi

APA MLA BibTeX

Kamenshchik, A.Y., Rodríguez, J.N.P., Vardanyan, T. (2021). Time and Evolution in Quantum and Classical Cosmology. https://doi.org/10.3390/universe7070219

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Informasi Jurnal

Tahun Terbit: 2021
Sumber Database: DOAJ
DOI: 10.3390/universe7070219
Akses: Open Access ✓