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 ogarithmic 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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Pang, DW. Corner contributions to holographic entanglement entropy in non-conformal backgrounds. J. High Energ. Phys. 2015, 133 (2015). https://doi.org/10.1007/JHEP09(2015)133
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DOI: https://doi.org/10.1007/JHEP09(2015)133