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ABSTRACT: We compute the expectation values of circular Wilson loops in large
representations at strong coupling, in the large-N limit of the N=2
superconformal theory with SU(N) gauge group and 2N hypermultiplets. Employing
Pestun's matrix integral, we focus attention on symmetric and antisymmetric
representations with ranks of order N. We find that large rank antisymmetric
loops are independent of the coupling at strong 't Hooft coupling while
symmetric Wilson loops grow exponentially with it. Symmetric loops display a
non-analyticity as a function of the rank, characterized by the splitting of a
single matrix model eigenvalue from the continuum, bearing close resemblance to
Bose-Einstein condensation in an ideal gas. We discuss implications of these
for a putative large-N string dual. The method of calculation we adopt makes
explicit the connection to Fermi and Bose gas descriptions and also suggests a
tantalizing connection of the above system to a multichannel Kondo model.
12/2011;
