Minimal Factorization of Chern-Simons Theory -- Gravitational Anyonic Edge Modes

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Hauptverfasser: Mertens, Thomas G., Wu, Qi-Feng
Format: Preprint
Veröffentlicht: 2025
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author Mertens, Thomas G.
Wu, Qi-Feng
author_facet Mertens, Thomas G.
Wu, Qi-Feng
contents One approach to analyzing entanglement in a gauge theory is embedding it into a factorized theory with edge modes on the entangling boundary. For topological quantum field theories (TQFT), this naturally leads to factorizing a TQFT by adding local edge modes associated with the corresponding CFT. In this work, we instead construct a minimal set of edge modes compatible with the topological invariance of Chern-Simons theory. This leads us to propose a minimal factorization map. These minimal edge modes can be interpreted as the degrees of freedom of a particle on a quantum group. Of particular interest is three-dimensional gravity as a Chern-Simons theory with gauge group SL$(2,\mathbb{R}) \times$ SL$(2,\mathbb{R})$. Our minimal factorization proposal uniquely gives rise to quantum group edge modes factorizing the bulk state space of 3d gravity. This agrees with earlier proposals that relate the Bekenstein-Hawking entropy in 3d gravity to topological entanglement entropy.
format Preprint
id arxiv_https___arxiv_org_abs_2505_00501
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Minimal Factorization of Chern-Simons Theory -- Gravitational Anyonic Edge Modes
Mertens, Thomas G.
Wu, Qi-Feng
High Energy Physics - Theory
Mathematical Physics
Quantum Algebra
Symplectic Geometry
One approach to analyzing entanglement in a gauge theory is embedding it into a factorized theory with edge modes on the entangling boundary. For topological quantum field theories (TQFT), this naturally leads to factorizing a TQFT by adding local edge modes associated with the corresponding CFT. In this work, we instead construct a minimal set of edge modes compatible with the topological invariance of Chern-Simons theory. This leads us to propose a minimal factorization map. These minimal edge modes can be interpreted as the degrees of freedom of a particle on a quantum group. Of particular interest is three-dimensional gravity as a Chern-Simons theory with gauge group SL$(2,\mathbb{R}) \times$ SL$(2,\mathbb{R})$. Our minimal factorization proposal uniquely gives rise to quantum group edge modes factorizing the bulk state space of 3d gravity. This agrees with earlier proposals that relate the Bekenstein-Hawking entropy in 3d gravity to topological entanglement entropy.
title Minimal Factorization of Chern-Simons Theory -- Gravitational Anyonic Edge Modes
topic High Energy Physics - Theory
Mathematical Physics
Quantum Algebra
Symplectic Geometry
url https://arxiv.org/abs/2505.00501