Variational method in relativistic quantum field theory without cutoff
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DOI: 10.1103/physrevd.104.l091904
Abstract: The variational method is a powerful approach to solve many-body quantum problems non perturbatively. However, in the context of relativistic quantum field theory (QFT), it needs to meet 3 seemingly incompatible requirements outlined by Feynman:… read more here.
Keywords: field; without cutoff; relativistic quantum; quantum field ... See more keywords