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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.

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Authors and Affiliations

  1. Department of Theoretical Sciences, S N Bose National Centre for Basic Sciences, 700098, Kolkata, India

    Suman Ghosh

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  1. Suman Ghosh
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Correspondence to Suman Ghosh.

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Ghosh, S. Entanglement entropy due to near-horizon degrees of freedom. Eur. Phys. J. Plus 130, 154 (2015). https://doi.org/10.1140/epjp/i2015-15154-9

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  • DOI: https://doi.org/10.1140/epjp/i2015-15154-9

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