Observing Quantum Tunneling in Perturbation Series

Details Observing Quantum Tunneling in Perturbation Series Observing Quantum Tunneling in Perturbation Series

1997-09-02

arxiv.org/abs/hep-th/9709018v1

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, LaTeX with espcrc2 macro. Talk given at the 7th Asia Pacific Physics Conference, August 19--23, 1997, Peking, China

Scientific paper

It is well-known that the quantum tunneling makes conventional perturbation series non-Borel summable. We use this fact reversely and attempt to extract the decay width of the false-vacuum from the actual perturbation series of the vacuum energy density (vacuum bubble diagrams). It is confirmed that, at least in quantum mechanical examples, our proposal provides a complementary approach to the conventional instanton calculus in the strong coupling region.

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