Grassmann tensor renormalization group for one-flavor lattice Gross-Neveu model with finite chemical potential

Abstract

We apply the Grassmann tensor renormalization group (GTRG) to the one-flavor lattice Gross-Neveu model in the presence of chemical potential. We compute the fermion number density and its susceptibility and confirm the validity of GTRG for the finite density system. We introduce a method analogous to the reweighting method for Monte Carlo method and test it for some parameters.

18 pages, 8 figures

References in corpus (4)

• Tensor renormalization group approach to 2D classical lattice models
• Grassmann Tensor Renormalization Group Approach to One-Flavor Lattice Schwinger Model
• Critical behavior of lattice Schwinger model with topological term at $\theta =\pi$ using Grassmann tensor renormalization group
• Tensor renormalization group study of the 2d O(3) model

Cited by in corpus (5)

• Density Induced Phase Transitions in the Schwinger Model: A Study with Matrix Product States
• Tensor renormalization group study of the non-Abelian Higgs model in two dimensions
• Higher order tensor renormalization group for relativistic fermion systems
• Examples of symmetry-preserving truncations in tensor field theory
• Tensor RG calculations and quantum simulations near criticality