Unitarity in quantum cosmology: symmetries protected and violated
General Relativity and Quantum Cosmology
2021-02-19 v2
Abstract
This work deals with the violation or retention of symmetries associated with the self-adjoint extension of the Hamiltonian for homogeneous but anisotropic Bianchi I cosmological model. This extension is required to make sure the quantum evolution is unitary. It is found that the scale invariance is lost, but the Noether symmetries are preserved.
Keywords
Cite
@article{arxiv.1911.11839,
title = {Unitarity in quantum cosmology: symmetries protected and violated},
author = {Sachin Pandey and Narayan Banerjee},
journal= {arXiv preprint arXiv:1911.11839},
year = {2021}
}
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4 pages