Quantum criticality in SU(N) anti-ferromagnets: general strategies to circumvent the sign problem

In the first part of the seminar, I will describe a general approach to write down a large family of model SU(N) anti-ferromagnets that do not suffer from the sign problem. In the second half I will show how such Hamiltonians are useful for the study of deconfined quantum critical points and possibly other exotic physics.

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Event Date: 
Mardi, Avril 22, 2014 - 15:30 to 17:00
Space Room