Energy levels in a symmetric triple well

Abstract

We show, by analogy with the double square well, the energy levels of the triple square well. More specifically, it is interesting the analysis of the lowest energy levels when E < V0 because the three lowest energy levels are non-degenerate in contrast with the classical solution, and the transition between different wells is possible. As a result, we develop the corresponding energy formulae which are confirmed numerically and the tunnel effect is also described.