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تسجيل مستخدم جديدLine defects and radiation in $mathcal{N}=2$ theories
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We study the conformal data of a generic superconformal half-BPS line defect in a four-dimensional $mathcal{N} = 2$ 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.
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