Localization of the states of a \(PT\)-symmetric double well. (English) Zbl 1329.81168

Giachetti, Riccardo; Grecchi, Vincenzo

Int. J. Theor. Phys. 54, No. 11, 3889-3899 (2015).

Summary: We make a nodal analysis of the processes of level crossings in a model of quantum mechanics with a \(PT\)-symmetric double well. We prove the existence of infinite crossings with their selection rules. At the crossing, before the PT-symmetry breaking and the localization, we have a total P-symmetry breaking of the states.

MSC:

81Q05	Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics
81R05	Finite-dimensional groups and algebras motivated by physics and their representations

Keywords:

\(PT\)-symmetric; quantum mechanics; spectrum; level crossing; double well localization; Bander-Wu singularities

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