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2015

Perturbative entanglement entropy in nonlocal theories

Rabideau, Charles

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Entanglement entropy in the vacuum state of local field theories exhibits an area law.

However, nonlocal theories at large N and strong coupling violate this area law.
In these theories, the leading divergence in the entanglement entropy is extensive for regions smaller than the effective nonlocality scale and proportional to this effective nonlocality scale for regions larger than it.
This raises the question: is a volume law a generic feature of nonlocal theories, or is it only present at strong coupling and large N? This paper investigates entanglement entropy of large regions in weakly coupled nonlocal theories, to leading order in the coupling.

Perturbative entanglement entropy in nonlocal theories · Around

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J. L. Karczmarek and C. Rabideau, Holographic entanglement entropy in nonlocal theories

2013

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P. Sabella-Garnier, Mutual information on the fuzzy sphere

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Online companion to [ 20 ]

“NIST Digital Library of Mathematical Functions.” http://dlmf.nist.gov/, Release 1.0.8 of 2014-04-25 · 2014

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