Path-Integral for Quantum Tunneling
arXiv:hep-th/9204059 · doi:10.1016/0550-3213(92)90467-P
Abstract
Path-integral for theories with degenerate vacua is investigated. The origin of the non Borel-summability of the perturbation theory is studied. A new prescription to deal with small coupling is proposed. It leads to a series, which at low orders and small coupling differs from the ordinary perturbative series by nonperturbative amount, but is Borel-summable.
25 pages + 12 figures (not included, but available upon request) [No changed in content in this version. Problem with line length fixed.]