Entanglement entropy due to near-horizon degrees of freedom

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Abstract

Assuming that the dominant contribution to the entropy due to entanglement across a spherical hypersurface comes from the near-horizon degrees of freedom, we analytically derive the entropy of a free massless scalar field in Minkowski spacetime across a spherical entangling surface. The resulting entanglement entropy is found to be proportional to the entangling surface as expected. A logarithmic subleading term with positive coefficient is also found through numerical computation. We have extended the analysis to higher dimensions as well.

Keywords

Entropy Black Hole Entanglement Entropy Total Entropy Logarithmic Correction 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Department of Theoretical SciencesS N Bose National Centre for Basic SciencesKolkataIndia

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