12 citations · 76 across the 16 of their papers we have counts for
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A Variational Perturbation Approximation Method in Tsallis Non-Extensive Statistical Physics
Wen-Fa Lu
For the generalized statistical mechanics based on the Tsallis entropy, a variational perturbation approximation method with the principle of minimal sensitivity is developed by ca…
Gaussian Effective Potential and the Coleman's normal-ordering Prescription : the Functional Integral Formalism
Wen-Fa Lu, Chul Koo Kim
For a class of system, the potential of whose Bosonic Hamiltonian has a Fourier representation in the sense of tempered distributions, we calculate the Gaussian effective potential…
Phase Diagram of a Two-Dimensional Neutral Classical Coulomb Gas from a Non-perturbative sine-Gordon Expansion
Wen-Fa Lu, Chul Koo Kim
Within the sine-Gordon formalism of a two-dimensional neutral classical Coulomb gas, a convergent expansion with non-perturbative nature is performed to calculate the thermodynamic…
Rayleigh-Schrödinger Perturbation Theory Based on Gaussian Wavefunctional Approch
Wen-Fa Lu, Chul Koo Kim, Jae Hyung Yee +1
A Rayleigh-Schrödinger perturbation theory based on the Gaussian wavefunctional is constructed. The method can be used for calculating the energies of both the vacuum and the excit…