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hep-th2002★ 5 cited
Linear Sigma model in the Gaussian wave functional approximation II: Analyticity of the S-matrix and the effective potential/action
Issei Nakamura, V. Dmitrasinovic
We show an explicit connection between the solution to the equations of motion in the Gaussian functional approximation and the minimum of the (Gaussian) effective potential/action…
cond-mat.stat-mech2002★ 8 cited
Anomalous Behavior of the Zero Field Susceptibility of the Ising Model on the Cayley Tree
Tatijana Stosic, Borko D. Stosic, Ivon P. Fittipaldi
It is found that the zero field susceptibility chi of the Ising model on the Cayley tree exhibits unusually weak divergence at the critical point Tc. The susceptibility amplitude i…