Entanglement and Thermal Entropy of Gauge Fields
High Energy Physics - Theory
2015-06-17 v1
Abstract
We consider the universal logarithmic divergent term in the entanglement entropy of gauge fields in the Minkowski vacuum with an entangling sphere. Employing the mapping in arXiv:1102.0440, we analyze the corresponding thermal entropy on open Einstein universe and on the static patch of de Sitter. Using the heat kernel of the vector Laplacian we resolve a discrepancy between the free field calculation and the expected Euler conformal anomaly. The resolution suggests a modification of the well known formulas for the vacuum expectation value of the spin-1 energy-momentum tensor on conformally flat space-times.
Keywords
Cite
@article{arxiv.1308.4964,
title = {Entanglement and Thermal Entropy of Gauge Fields},
author = {Christopher Eling and Yaron Oz and Stefan Theisen},
journal= {arXiv preprint arXiv:1308.4964},
year = {2015}
}
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17 pages