Numerical determination of entanglement entropy for a sphere

Details Numerical determination of entanglement entropy for a sphere Numerical determination of entanglement entropy for a sphere

2009-11-23

arxiv.org/abs/0911.4283v1

Phys.Lett.B685:222-227,2010

Physics

High Energy Physics

High Energy Physics - Lattice

Scientific paper

10.1016/j.physletb.2010.01.053

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.

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