Entanglement Entropy in String Compactifications

• URL: http://arxiv.org/abs/2310.13735v2
• Date: Tue, 24 Sep 2024 12:40:47 GMT
• Title: Entanglement Entropy in String Compactifications
• Abstract summary: We compute entanglement entropy in orbifolds of Type-II compactifications to four and six dimensions. We show that all tachyonic contributions in these models admit a resummation and analytic continuation that yields finite entropy in the physical region $0 N leq 1$ just as in ten dimensions.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We consider $\mathbb{Z}_N$ orbifolds of Type-II compactifications to four and six dimensions on several Calabi-Yau manifolds in the orbifold limit with the aim to compute the entanglement entropy. The spectrum can contain tachyons in the doubly-twisted sectors which can lead to new infrared divergences for the partition function that are not present in the orbifolds of the uncompactified ten-dimensional theory. We show that all tachyonic contributions in these models admit a resummation and analytic continuation that yields finite entropy in the physical region $0 < N \leq 1$ just as in ten dimensions.

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