Analytical solution of the Gross-Neveu model at finite density

Aug, 2003
4 pages
Published in:
  • Phys.Rev.D 69 (2004) 067703
e-Print:
Report number:
  • FAU-TP3-03-9

Citations per year

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Abstract:
Recent numerical calculations have shown that the ground state of the Gross-Neveu model at finite density is a crystal. Guided by these results, we can now present the analytical solution to this problem in terms of elliptic functions. The scalar potential is the superpotential of the non-relativistic Lame Hamiltonian. This model can also serve as analytically solvable toy model for a relativistic superconductor in the Larkin-Ovchinnikov-Fulde-Ferrell phase.
  • 11.10.Kk
  • Gross-Neveu model
  • dimension: 2
  • density: finite
  • energy
  • Hartree-Fock approximation