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Title: Exact results for Wilson loops in arbitrary representations
Author: Fiol Núñez, Bartomeu
Torrents, Genís
Keywords: Teoria quàntica de camps
Camps de galga (Física)
Polinomis ortogonals
Partícules (Física nuclear)
Quantum field theory
Gauge fields (Physics)
Orthogonal polynomials
Particles (Nuclear physics)
Issue Date: 8-Jan-2014
Publisher: Springer Verlag
Abstract: We compute the exact vacuum expectation value of 1/2 BPS circular Wilson loops of TeX = 4 U(N) super Yang-Mills in arbitrary irreducible representations. By localization arguments, the computation reduces to evaluating certain integrals in a Gaussian matrix model, which we do using the method of orthogonal polynomials. Our results are particularly simple for Wilson loops in antisymmetric representations; in this case, we observe that the final answers admit an expansion where the coefficients are positive integers, and can be written in terms of sums over skew Young diagrams. As an application of our results, we use them to discuss the exact Bremsstrahlung functions associated to the corresponding heavy probes.
Note: Reproducció del document publicat a:
It is part of: Journal of High Energy Physics, 2014, vol. 2014, num. 1, p. 20
Related resource:
ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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