Abstract
A form of stochastic perturbation theory is described, where the representative stochastic fields are generated instantaneously rather than through a Markov process. The correctness of the procedure is established to all orders of the expansion and for a wide class of field theories that includes all common formulations of lattice QCD.
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Lüscher, M. Instantaneous stochastic perturbation theory. J. High Energ. Phys. 2015, 142 (2015). https://doi.org/10.1007/JHEP04(2015)142
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DOI: https://doi.org/10.1007/JHEP04(2015)142