Holographic dual of defect conformal field theory with corner contributions
Year: 2025
Type: article
Abstract: We study defect conformal field theory (CFT) within the framework of holographic duality, emphasizing the impact of corner contributions. We model distinct conformal defects using interface branes that differ in tensions and are connected by a corner. Employing the relationship between CFT scaling dimensions and Euclidean gravity actions, we outline a general procedure for calculating the anomalous dimensions of defect changing operators at nontrivial cusps. Several analytical results are obtained, including the cusp anomalous dimensions at big and small angles. While 1 / ϕ universal divergence appears for small cusp angles due to the fusion of two defects, more interestingly, we uncover a bubble phase rendered by a near zero angle cusp, in which the divergence is absent.
DOI: 10.1103/kqk3-lc64
Authors: Xinyu Sun, Shao-Kai Jian
Institutions: Tsinghua University, Tulane University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funder: Tulane University
OpenAlex ID: W4412480931