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arXiv · 1107.5905

Nonlinear Schrodinger equations with multiple-well potential

Andrea Sacchetti
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Abstract

We consider the stationary solutions for a class of Schrodinger equations with a N-well potential and a nonlinear perturbation. By means of semiclassical techniques we prove that the dominant term of the ground state solutions is described by a N-dimensional Hamiltonian system, where the coupling term among the coordinates is a tridiagonal Toeplitz matrix. In particular we consider the case of N=4 wells, where we show the occurrence of spontaneous symmetry-breaking bifurcation effect. In particular, in the limit of large focusing nonlinearity we prove that the ground state stationary solutions consist of N wavefunctions localized on a single well.

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Andrea Sacchetti. 2011-07-29. Nonlinear Schrodinger equations with multiple-well potential. https://doi.org/10.1016/j.physd.2012.08.015

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