Seminar “Theory of Hadronic Matter Under Extreme Conditions”

On Monday, 11 April 2016, at 4.00 pm in the Blokhintsev Hall (4 floor) of BLTP a seminar “Competition and duality correspondence between chiral and superconducting channels in (2+1)-dimensional four-fermion models” will be held.

Speaker: Dietmar Ebert (Institute of Physics, Humboldt-University, Berlin)

Abstract:

I will explain the duality correspondence between fermion-antifermion and di-fermion interaction channels as established in two (2+1)-dimensional Gross-Neveu type models with a fermion number chemical potential μ and a chiral chemical potential μ_5. The role and influence of this property on the phase structure of the models are investigated. In particular, it is shown that the chemical potential μ_5 promotes the appearance of dynamical chiral symmetry breaking, whereas the chemical potential μ contributes to the emergence of superconductivity. arXiv:1603.00357