3 S ep 2 00 9 A Tail of a Quark in N = 4 SYM
نویسنده
چکیده
We study the dynamics of a ‘composite’ or ‘dressed’ quark in stronglycoupled large-Nc N = 4 super-Yang-Mills, 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. We explore the consequences of the equation in a few simple examples.
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متن کاملar X iv : h ep - t h / 06 05 23 5 v 2 1 J un 2 00 6 Drag Force in a Charged N = 4 SYM Plasma Elena Cáceres
Following recent developments, we employ the AdS/CFT correspondence to determine the drag force exerted on an external quark that moves through an N = 4 super-Yang-Mills plasma with a non-zero R-charge density (or, equivalently, a non-zero chemical potential). We find that the drag force is larger than in the case where the plasma is neutral.
متن کاملar X iv : h ep - t h / 06 05 23 5 v 3 1 5 N ov 2 00 6 Drag Force in a Charged N = 4 SYM Plasma
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