Dec 15 – 18, 2020
Online (Zoom)
Asia/Tokyo timezone

Restoration of chiral symmetry in cold and dense NambuーJona-Lasinio model with tensor renormalization group

Dec 16, 2020, 4:00 PM
Online (Zoom)

Online (Zoom)

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Mr Shinichiro Akiyama (U. of Tsukuba)


We analyze the chiral phase transition of the NambuーJona-Lasinio model in the cold and dense region on the lattice developing the Grassmann version of the anisotropic tensor renormalization group algorithm. The model is formulated with the KogutーSusskind fermion action. We use the chiral condensate as an order parameter to investigate the restoration of the chiral symmetry. The first-order chiral phase transition is clearly observed in the dense region at vanishing temperature with $\mu /T \sim O(10^3)$ on a large volume of $V=1024^4$. We also present the results for the equation of state.

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