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        for FAIR logo       CRC-TR 211 Logo        Nuclear Physics Colloquium

Venue: Physics Building, Max-von-Laue-Str. 1, PHYS 02.116
Time: Thursday, November 21, 4:30pm (s.t.)
Contact: hees@itp.uni-frankfurt.de

Phase structure of the NJL$_2$ model with isospin - all inclusive

Michael Thies (Erlangen-Nuremberg University)

Using a finite-mode approach, the Frankfurt group has found that the phase diagram of the massless two-flavour NJL$_2$ model in the $(\mu,T)$-plane is identical to that of the Gross-Neveu model (A. Heinz et al., 2016). This surprising observation has incited us to explore the phase diagram of the two-flavour NJL$_2$ model systematically. In the chiral limit, we include all three possible chemical potentials (fermion density, isospin density and chiral isospin density) and come up with the full analytical solution. The corresponding massive model can only be solved numerically. First results of such a numerical solution will also be presented, with special emphasis on the anatomy of inhomogeneous phases.

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