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Line Defects and Radiation in N=2 Conformal Theories

Bianchi, Lorenzo; Lemos, Madalena; Meineri, Marco

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Lorenzo Bianchi

Marco Meineri


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.


Bianchi, L., Lemos, M., & Meineri, M. (2018). Line Defects and Radiation in N=2 Conformal Theories. Physical Review Letters, 121(14), Article 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


Published Journal Article (158 Kb)

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Copyright Statement
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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