High Energy Theory Seminar

18 March 2011

Erich Poppitz (Toronto)

Deformations, bions, and (de)confinement


Recent observations, first made in string theory, led to the realization that introducing various "deformations" (finite volume, appropriate double-trace operators...) allows for an analytic study of many nonperturbative aspects of arbitrary four-dimensional gauge theories. Notably, the confinement mechanism, the generation of mass gap, and, in some cases, chiral symmetry breaking can be studied in a theoretically controlled manner. In this talk, I will review: i) the ideas and tools involved, ii) the main results obtained so far in this approach and its limitations, iii) our understanding of its relation to other approaches to (non-)supersymmetric gauge dynamics, iv) ongoing and possible future work.

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