Numerical determination of entanglement entropy for a sphere

Abstract

We apply Srednicki's regularization to extract the logarithmic term in the entanglement entropy produced by tracing out a real, massless, scalar field inside a three dimensional sphere in 3+1 flat spacetime. We find numerically that the coefficient of the logarithm is -1/90 to 0.2 percent accuracy, in agreement with an existing analytical result.

References in corpus (2)

• Holographic Entanglement Entropy: An Overview
• Entanglement Entropy, Trace Anomalies and Holography

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