Hyperbolic cylinders and entanglement entropy: gravitons, higher spins, $p$-forms

Abstract

We show that the entanglement entropy of $D=4$ linearized gravitons across a sphere recently computed by Benedetti and Casini coincides with that obtained using the Kaluza-Klein tower of traceless transverse massive spin-2 fields on $S^1\times Ad{S}_3$. The mass of the constant mode on $S^1$ saturates the Brietenholer-Freedman bound in $Ad{S}_3$. This condition also ensures that the entanglement entropy of higher spins determined from partition functions on the hyperbolic cylinder coincides with their recent conjecture. Starting from the action of the 2-form on $S^1\times Ad{S}_5$ and fixing gauge, we evaluate the entanglement entropy across a sphere as well as the dimensions of the corresponding twist operator. We demonstrate that the conformal dimensions of the corresponding twist operator agrees with that obtained using the expectation value of the stress tensor on the replica cone. For conformal $p$-forms in even dimensions it obeys the expected relations with the coefficients determining the $3$-point function of the stress tensor of these fields.

arXiv comment52 pages, published version, improved treatment of the graviton

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• Generalized Symmetries of the Graviton
• Entanglement entropy of gravitational edge modes
• Pseudo Entropy in $U(1)$ gauge theory
• Partition functions of higher derivative conformal fields on conformally related spaces
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• Dynamical Edge Modes in $p$-form Gauge Theories
• Entanglement entropy of local gravitational quenches
• Entanglement entropy of a Rarita-Schwinger field in a sphere
• Extractable entanglement from a Euclidean hourglass
• Partition functions of $p$-forms from Harish-Chandra characters