Recursive Calculation of Effective Potential and Variational Resummation
arXiv:quant-ph/0406206 · doi:10.1063/1.1824212
Abstract
We set up a method for a recursive calculation of the effective potential which is applied to a cubic potential with imaginary coupling. The result is resummed using variational perturbation theory (VPT), yielding an exponentially fast convergence.
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