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arXiv · 2610.38208

Covering Surfaces, Conical-Defect Continuation, and Multi-Entropy at Arbitrary Genus

Chen-Te Ma
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Abstract

We derive normalized geometric factors for permutation-twist correlators at arbitrary genus. For three uniformly ramified branch values, hypergeometric uniformization shows that the real part of the continued conical-defect exponent equals the covering-space anomaly factor. Its imaginary part is an Euler-characteristic Weyl phase. We extend the normalization to additional branch values, derive higher replica-index corrections to the geometric multi-entropy, and state the extra condition required for a holographic limit. A reducible conformal/topological example demonstrates why large central charge alone does not fix the complete entanglement result.

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Chen-Te Ma. 2026-10-28. Covering Surfaces, Conical-Defect Continuation, and Multi-Entropy at Arbitrary Genus. https://arxiv.org/abs/2610.38208

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