University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Tuesday, March 29th 2016
4:30 pm:
CM Journal Club in PAN 120
Speaker: Mengxing Ye
Subject: Coherent state path integral in quantum spin systems

I will introduce a very useful method to study quantum spin systems, namely, the coherent state path integral. One can see that the Berry phase term appears naturally in the path integral. I will take the antiferromagnetic model on a bipartite lattice as an example, and discuss the phases and phase transitions in this model.

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