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Upcoming Seminars in series RENC-THEO
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Thursday 20 April 2017, 10:00 at IHP, 314 RENC-THEO (Rencontres Théoriciennes) hep-th
Vasilis Niarchos ( Durham ) Aspects of Berry phase in QFT
Abstract: Berry phase is a well-known feature of quantum mechanics. In this talk I will describe several new results about Berry phase in quantum field theory. We will see that even simple quantum field theories can exhibit non-trivial Berry phases and will discuss an explicit example in axion electrodynamics. We will also discuss a general relation between the Berry connection in conformal field theories and the connections on conformal manifolds considered previously by several authors in conformal perturbation theory. The implementation of this relation in 2d N=(2,2) and 4d N=2 superconformal field theories leads to a useful re-derivation of the tt* equations. The latter have important implications on the non-perturbative structure of certain correlation functions, which I will briefly review.

Thursday 1 June 2017, 10:00 at IHP, 314 RENC-THEO (Rencontres Théoriciennes) hep-th
David Tong ( Cambridge U. ) TBA

Thursday 1 June 2017, 11:45 at IHP, 314 RENC-THEO (Rencontres Théoriciennes) hep-th
Mike Blake ( MIT ) TBA

Thursday 15 June 2017, 10:00 at IHP, 314 RENC-THEO (Rencontres Théoriciennes) hep-th
Carlos Hoyos ( University of Oviedo ) TBA

Thursday 15 June 2017, 11:45 at IHP, 314 RENC-THEO (Rencontres Théoriciennes) hep-th
Thomas Hertog ( University of Leuven ) TBA

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