A note on entanglement entropy and topological defects in symmetric orbifold CFTs

期刊论文
出版模式：

开放获取
发表日期：

2024年9月3日

查看全文

Michael Gutperle,
Yan-Yan Li,
Dikshant Rathore,
Konstantinos Roumpedakis

摘要

In this brief note we calculate the entanglement entropy in M^⊗N/S_N symmetric orbifold CFTs in the presence of topological defects, which were recently constructed in [1, 2]. We consider both universal defects which realize Rep(S_N) non-invertible symmetry and non-universal defects. We calculate the sub-leading defect entropy/g-factor for defects at the boundary of the entangling surface as well as inside it.