Abstract
In this paper we prove an abstract KAM theorem for infinite dimensional Hamiltonians systems. This result extends previous works of S.B. Kuksin and J. Pöschel and uses recent techniques of H. Eliasson and S.B. Kuksin. As an application we show that some 1D nonlinear Schrödinger equations with harmonic potential admits many quasi-periodic solutions. In a second application we prove the reducibility of the 1D Schrödinger equations with the harmonic potential and a quasi periodic in time potential.
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Communicated by G. Gallavotti
The first author was supported in part by the grant ANR-06-BLAN-0063.
The second author was supported in part by the grant ANR-07-BLAN-0250.
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Grébert, B., Thomann, L. KAM for the Quantum Harmonic Oscillator. Commun. Math. Phys. 307, 383–427 (2011). https://doi.org/10.1007/s00220-011-1327-5
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DOI: https://doi.org/10.1007/s00220-011-1327-5