Spectral Rigidity for Periodic Schrödinger Operators in Dimension 2

Details Spectral Rigidity for Periodic Schrödinger Operators in Dimension 2 Spectral Rigidity for Periodic Schrödinger Operators in Dimension 2

2012-03-13

arxiv.org/abs/1203.2901v1

Mathematics

Analysis of PDEs

Scientific paper

We consider two dimensional real-valued analytic potentials for the Schr\"odinger equation which are periodic over a lattice $L$. Under certain assumptions on the form of the potential and the lattice $L$, we can show there is a large class of analytic potentials which are Floquet rigid and dense in the set of $C^\infty(R^2/L)$ potentials. The result extends the work of Eskin et. al, in "On isospectral periodic potentials in $R^n$, II."

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