Line Defects and Radiation in N=2 Conformal Theories

Bianchi, Lorenzo; Lemos, Madalena; Meineri, Marco

Abstract

We study the conformal data of a generic superconformal line defect preserving half of the supercharges in a four-dimensional N = 2 conformal theory. We prove a theory independent relation between the one-point function of the stress tensor in the presence of the line defect and the two-point function of the displacement operator. When the defect is interpreted as a heavy charged particle in a gauge theory, the result relates the energy emitted through bremsstrahlung with the coupling of the stress tensor to the particle at rest.

Citation

Bianchi, L., Lemos, M., & Meineri, M. (2018). Line Defects and Radiation in N=2 Conformal Theories. Physical Review Letters, 121(14), Article 141601. https://doi.org/10.1103/physrevlett.121.141601

• Journal Article Type: Article
• Acceptance Date: Sep 12, 2018
• Online Publication Date: Oct 1, 2018
• Publication Date: Oct 5, 2018
• Deposit Date: Jun 4, 2020
• Publicly Available Date: Jun 9, 2020
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 121
• Issue: 14
• Article Number: 141601
• DOI: https://doi.org/10.1103/physrevlett.121.141601
• Public URL: https://durham-repository.worktribe.com/output/1263206