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arXiv · hep-th/9403106

Instantons in Large Order of the Perturbative Series

Hideaki Aoyama
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Abstract

Behavior of the Euclidean path integral at large orders of the perturbation series is studied. When the model allows tunneling, the path-integral functional in the zero instanton sector is known to be dominated by bounce-like configurations at large order of the perturbative series, which causes non-convergence of the series. We find that in addition to this bounce the perturbative functional has a subleading peak at the instanton and anti-instanton pair, and its sum reproduces the non-perturbative valley.

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Hideaki Aoyama. 1994-03-18. Instantons in Large Order of the Perturbative Series. https://doi.org/10.1016/0370-2693(94)90773-0

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