Perturbation theory at large order: The choice of integration contour |
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| Authors: | Davison E. Soper |
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| Affiliation: | Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403, USA |
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| Abstract: | I discuss two technical points in the method of Lipatov for extracting the large-order behavior of field theories. The first is an adjustment of the integration contour required to make the action bounded below. The second is a method for treating fluctuations in the coupling constant exactly. |
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