Defects and perturbation

2020/11/30 by Enrico M. Brehm · 2 citations
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #Conformal field theory #Conformal map #Diagonal #Entropy (arrow of time) #Perturbation (astronomy) #Perturbation theory (quantum mechanics) #Quantum entanglement #Quantum many-body systems #Topological defect #hep-th

paper · pdf · doi:10.1007/jhep04(2021)300

published in Journal of High Energy Physics 2021(4) (Springer Nature) · 28 pages, 3 figures, 1 table, references added, some typos corrected

openalex created_date 2020/12/07 · arxiv created 2021/01/05 · openalex publication_date 2021/04/01 · arxiv updated 2021/05/19 · openalex updated_date 2026/08/05

Abstract

A bstract We investigate perturbatively tractable deformations of topological defects in two-dimensional conformal field theories. We perturbatively compute the change in the g -factor, the reflectivity, and the entanglement entropy of the conformal defect at the end of these short RG flows. We also give instances of such flows in the diagonal Virasoro and Super-Virasoro Minimal Models.

Citations

• Perturbed defects and T-systems in conformal field theory
• A-D-E Classification of Conformal Field Theories
• Defects and bulk perturbations of boundary Landau-Ginzburg orbifolds
• Conformal Field Theory