Radiation Damping in a Non-Abelian Strongly-Coupled Gauge Theory

6th International Symposium on Quantum Theory and Symmetries

Chernicoff, Mariano^1 ; García, J Antonio^2 ; Güijosa, Alberto^2

Departament de Física Fonamental, Universitat de Barcelona, Marti i Franquès 1, E-08028 Barcelona, Spain^1

Departamento de Física de Altas Energías, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apdo. Postal 70-543, México D.F. 04510, Mexico^2

关键词: AdS/CFT;    Covariant;    Dispersion relations;    Equation of motion;    Gauge theory;    Lorentz;    Radiation damping;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/462/1/012018/pdf
DOI  :  10.1088/1742-6596/462/1/012018

来源: IOP

【 摘 要 】

We study a 'composite' or 'dressed' quark in strongly-coupled N = 4 super- Yang-Mills (SYM), making use of the AdS/CFT correspondence. We show that the standard string dynamics nicely captures the physics of the quark and its surrounding non-Abelian field configuration, making it possible to derive a relativistic equation of motion that incorporates the effects of radiation damping. From this equation one can deduce a non-standard dispersion relation for the composite quark, as well as a Lorentz covariant formula for its rate of radiation.