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arXiv · 2302.06688

Linear response of entanglement entropy to $T\bar{T}$ in massive QFTs

Shachar Ashkenazi·Soumangsu Chakraborty·Zhanyu Ma·Tom Shachar
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Abstract

We compute the leading correction to entanglement entropy in $T\bar{T}$ deformed massive QFTs. We show that both for massive scalar and Dirac fermion, the leading order correction to the entanglement entropy of half-space comes from the boundary of the entangling surface. For the case of massive scalar, the boundary term is finite while for massive fermion, it diverges logarithmically giving rise to an additional log-square divergence in the entanglement entropy.

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Shachar Ashkenazi, Soumangsu Chakraborty, Zhanyu Ma, Tom Shachar. 2023-02-13. Linear response of entanglement entropy to $T\bar{T}$ in massive QFTs. https://doi.org/10.1007/jhep04(2023)077

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