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quant-ph2002
Tunneling in asymmetric double well: instanton calculus
A. Rivero
The level splitting formula of an asymmetric double well potential is calculated taking into account the multi-instanton contributions (dilute gas approximation). Results can be re…
quant-ph1998
A short derivation of Feynman formula
Alejandro Rivero
The complex exponential weighting of Feynman formalism is seen to happen at the classical level. (Finiteness of) Feynman path integral formula is suspected then to appear as a cons…