Abstract
Under a constraint of local self-energy, specific heat, the static magnetic susceptibility, and the compressibility for the one-band Hubbard model are calculated exactly in the framework of Fermi liquid theory. On the basis of the path integral formulation, exact relations among derivative self-energy and the vertex functions are derived, thereby establishing a general relation between the thermodynamic quantities. At half filling, as the charge Drude weight vanishes, both the magnetic susceptibility and specific heat are strongly enhanced, and the Wilson ratio saturates at 2, indicating that the local Fermi liquid behavior is stable against a ferromagnetic instability.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
