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arXiv · 1506.07979

Corner contributions to holographic entanglement entropy in non-conformal backgrounds

Da-Wei Pang
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Abstract

We study corner contributions to holographic entanglement entropy in non-conformal backgrounds: a kink for D2-branes as well as a cone and two different types of crease for D4-branes. Unlike 2+1-dimensional CFTs, the corner contribution to the holographic entanglement entropy of D2-branes exhibits a power law behaviour rather than a logarithmic term. However, the logarithmic term emerges in the holographic entanglement entropy of D4-branes. We identify the logarithmic term for a cone in D4-brane background as the universal contribution under appropriate limits and compare it with other physical quantities.

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Da-Wei Pang. 2015-06-26. Corner contributions to holographic entanglement entropy in non-conformal backgrounds. https://doi.org/10.1007/jhep09(2015)133

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