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Entanglement and Thermal Entropy of Gauge Fields

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons45841

Eling,  Christopher
Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons20718

Theisen,  Stefan
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Volltexte (frei zugänglich)

1308.4964.pdf
(Preprint), 181KB

JHEP2013_11_19.pdf
(beliebiger Volltext), 295KB

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Zitation

Eling, C., Oz, Y., & Theisen, S. (2013). Entanglement and Thermal Entropy of Gauge Fields. Journal of high energy physics: JHEP, 2013(11): 019. doi:10.1007/JHEP11(2013)019.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0014-BF0B-7
Zusammenfassung
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.