On the Relationship between Large Order Graphs and Instantons for the Double Well Oscillator

Details On the Relationship between Large Order Graphs and Instantons for the Double Well Oscillator On the Relationship between Large Order Graphs and Instantons for the Double Well Oscillator

2000-08-24

arxiv.org/abs/hep-ph/0008266v1

Nucl.Phys. B595 (2001) 567-586

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, Latex, 6 figures, 1 table

Scientific paper

10.1016/S0550-3213(00)00605-2

The double well oscillator is used as a QCD-like model for studying the relationship between large order graphs and the instanton-antiinstanton solution. We derive an equation for the perturbative coefficients of the ground state energy when the number of 3 and/or 4-vertices is fixed and large. These coefficients are determined in terms of an exact``bounce'' solution. When the number of 4-vertices is analytically continued to be near the negative of half the number of 3-vertices the bounce solution approaches the instanton-antiinstanton solution and detremines leading Borel singularity.

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