Helffer, B.; Sjöstrand, J. Semiclassical expansions of the thermodynamic limit for Schrödinger equation. II: The double well case. (English) Zbl 0979.35520 Helv. Phys. Acta 65, No. 5, 748-765 (1992). Cited in 3 Documents MSC: 35Q55 NLS equations (nonlinear Schrödinger equations) 81Q05 Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics Citations:Zbl 0788.35109 PDFBibTeX XMLCite \textit{B. Helffer} and \textit{J. Sjöstrand}, Helv. Phys. Acta 65, No. 5, 748--765 (1992; Zbl 0979.35520)