Resurgence Theory: Understanding Nonperturbative Effects from Perturbation Theory

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Other Title
  • リサージェンス理論:摂動論から非摂動効果を理解する
  • リサージェンス リロン : セツドウロン カラ ヒセツドウ コウカ オ リカイ スル

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Abstract

<p>Application of resurgence theory to quantum physics attracts a great deal of attention. Resurgence theory was originally developed in ODE to obtain solutions from formal power-series solutions by use of nontrivial relation between formal solutions. It has been recently revealed that a similar relation between perturbative and nonperturbative contributions also exists in quantum theory. We give a brief review on the recent progress in the topic.</p>

Journal

  • Butsuri

    Butsuri 73 (6), 352-360, 2018-06-05

    The Physical Society of Japan

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