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Ginzburg Landau theory of superconductivity at fractal dimensions
Chul Koo Kim, A. Rakhimov, Jae Hyung Yee
The post Gaussian effective potential in $D=2+2\veps$ dimensions is evaluated for the Ginzburg-Landau theory of superconductivity. Two and three loop integrals for the post Gaussia…
Rayleigh-Schroedinger-Goldstone variational perturbation theory for many fermion systems
Sang Koo You, Chul Koo Kim
We present a Rayleigh-Schroedinger-Goldstone perturbation formalism for many fermion systems. Based on this formalism, variational perturbation scheme which goes beyond the Gaussia…
Post Gaussian effective potential in the Ginzburg Landau theory of superconductivity
Chul Koo Kim, A. Rakhimov, Jae Hyung Yee
The post Gaussian effective potential in D=3 dimensions and the Gaussian effective potential in D=2+epsilon are evaluated for the Ginzburg-Landau theory of superconductivity. It is…
Condensate of a charged boson fluid at non-integer dimensions
Sang-Hoon Kim, Chul Koo Kim, Kyun Nahm
Condensate of a charged boson fluid at non-integer dimensions between 2 and 3 is studied. Interaction between particles is assumed to be Coulombic, and Bogoliubov approximation is…