An Improved Gaussian Approximation for Quantum Field Theory

Details An Improved Gaussian Approximation for Quantum Field Theory An Improved Gaussian Approximation for Quantum Field Theory

1998-04-30

arxiv.org/abs/hep-th/9804207v1

Facta Univ.Ser.Phys.Chem.Tech.1:113-120,1998

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, Latex 2e, 4 figures

Scientific paper

We present a new approximation technique for quantum field theory. The standard one-loop result is used as a seed for a recursive formula that gives a sequence of improved Gaussian approximations for the generating functional. In a different setting, the basic idea of this recursive scheme is used in the second part of the paper to substantialy speed up the standard Monte Carlo algorithm.

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