TY - JOUR
T1 - Entanglement and thermal entropy of gauge fields
AU - Eling, Christopher
AU - Oz, Yaron
AU - Theisen, Stefan
PY - 2013/11
Y1 - 2013/11
N2 - 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.
AB - 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.
KW - AdS-CFT correspondence
KW - Anomalies in field and string theories
KW - Conformal and W symmetry
KW - Gauge symmetry
UR - http://www.scopus.com/inward/record.url?scp=84896288037&partnerID=8YFLogxK
U2 - 10.1007/JHEP11(2013)019
DO - 10.1007/JHEP11(2013)019
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AN - SCOPUS:84896288037
SN - 1126-6708
VL - 2013
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 11
M1 - 19
ER -