Entanglement in anisotropic expanding spacetime
General Relativity and Quantum Cosmology
2019-03-13 v1 Quantum Physics
Abstract
We study the effect of space anisotropy in the entanglement generated by expanding universe on spin 0 and 1/2 fields. For massive scalar field we find revivals of entanglement entropy vs momentum after decreasing from the maximum at k = 0. In massive Dirac field the effect is a slight distortion of the non-monotonic profile giving rise to the maximum of entanglement entropy at k > 0. More interestingly, massless field of both type can only get entangled through anisotropy, with a maximum of entanglement entropy occurring at k > 0.
Keywords
Cite
@article{arxiv.1812.02835,
title = {Entanglement in anisotropic expanding spacetime},
author = {Roberto Pierini and Shahpoor Moradi and Stefano Mancini},
journal= {arXiv preprint arXiv:1812.02835},
year = {2019}
}