Holographic k-string Tensions in Higher Representations and Luescher Term Universality
arXiv:1209.5149 · doi:10.1103/PhysRevD.87.126005
Abstract
We investigate a holographic description of k-strings in higher representations via D5 branes with worldvolume fluxes. The D-brane configurations are embedded in supergravity backgrounds dual to confining field theories in 3 and 4 dimensions. We compute the tensions and find qualitative agreement for the totally symmetric and totally anti-symmetric representations with the results of other methods such as lattice as well as the Hamiltonian approach of Karabali and Nair. A one-loop computation on the D-brane configurations yields the Luescher term and allows us to confirm a previously proposed universal expression following from holography.
32 pages, 2 figures, 1 table. v2 references added; comparison with other methods enhanced
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