Corner contributions to holographic entanglement entropy in non-conformal backgrounds
arXiv:1506.07979 · doi:10.1007/JHEP09(2015)133
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.
25 pages, 1 figure, discussions in section 5.2 improved, typos corrected and references added
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