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5 papers · 1 filter
Hamiltonian Effective Potential
Beth Basista, Peter Suranyi
A Hamiltonian effective potential (the logarithm of the square of the wave functional) is defined and calculated at the tree and one loop levels in a scalar field theory. The…
The Hubbard Model at Infinite Dimensions: Thermodynamic and Transport Properties
Th. Pruschke, D. L. Cox, M. Jarrell
We present results on thermodynamic quantities, resistivity and optical conductivity for the Hubbard model on a simple hypercubic lattice in infinite dimensions. Our results for th…
Transport Properties of the Infinite Dimensional Hubbard Model
Th. Pruschke, D. L. Cox, M. Jarrell
Results for the optical conductivity and resistivity of the Hubbard model in infinite spatial dimensions are presented. At half filling we observe a gradual crossover from a normal…
Magnetic and Dynamic Properties of the Hubbard Model in Infinite Dimensions
M. Jarrell, Thomas Pruschke
An essentially exact solution of the infinite dimensional Hubbard model is made possible by using a self-consistent mapping of the Hubbard model in this limit to an effective singl…
A New Field Theoretic Approach to Criticality
Peter Suranyi
A reorganized perturbation expansion with a propagator of soft infrared behavior is used to study the critical behavior of the mass gap. The condition of relativistic covariance fi…