# Theoretical High Energy Seminar

## Masanori Hanada (U. of Washington)

### Orbifold equivalence in large-N QCD with finite baryon chemical potential and the sign problem

### Abstract:

We point out that large-N_c QCD in the 't Hooft limit is equivalent to SO(2*N_c) Yang-Mills with fundamental fermions. In the latter, notorious "sign problem" is absent even with finite baryon chemical potential, and hence the Monte-Carlo study is tractable. We also show the same idea can be applied in related models -- chiral random matrix theory (RMT) and holographic models. We explain nice old results like the exactness of the phase quenching in RMT in a certain parameter region is naturally understood and is generalized from the point of view of the equivalence.

### Details

Date: Tuesday, 15/2/11

Time: 14:15

Place: Auditorium A, Blegdamsvej 17, 2100, Copenhagen