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cond-mat.mes-hall2004
Diamagnetic response of Aharonov-Bohm rings: Impurity backward scatterings
Mun Dae Kim, Chul Koo Kim, Kyun Nahm
We report a theoretical calculation on the persistent currents of disordered normal-metal rings. It is shown that the diamagnetic responses of the rings in the vicinity of the zero…
cond-mat.supr-con2004
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…
cond-mat.supr-con2004
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…