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Supersymmetric Wilson loops and the Bremsstrahlung function in ABJ(M) theories

by Luca Griguolo (Università di Parma)

Dec 11, 2014 from 03:00 PM to 05:00 PM

Where Aula Teorici, via Irnerio 46

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Abstract:

We study the vacuum expectation value of a generalized class of bosonic and fermionic BPS Wilson loops in ABJM theory. Exploiting the relation between BPS Wilson loops, cusp anomalous dimension and Bremsstrahlung function we conjecture an exact expression for the latter in the 1/2-BPS case. Using results from localization, we show that in the weak-coupling limit our proposal agrees with the perturbative result, while at strong coupling it matches the leading term of the string prediction.