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Pré-Publication, Document De Travail Année : 2024

Schrödinger eigenfunctions sharing the same modulus and applications to the control of quantum systems

Résumé

In this paper we investigate when linearly independent eigenfunctions of the Schr\"odinger operator may have the same modulus. General properties are established and the one-dimensional case is treated in full generality. The study is motivated by its application to the bilinear control of the Schrödinger equation. By assuming that the potentials of interaction satisfy a saturation property and by adapting a strategy recently proposed by Duca and Nersesyan, we discuss when the system can be steered arbitrarily fast between energy levels. Extensions of the previous results to quantum graphs are finally presented.
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hal-04496433 , version 1 (12-03-2024)

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  • HAL Id : hal-04496433 , version 1

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Ugo Boscain, Kévin Le Balc'H, Mario Sigalotti. Schrödinger eigenfunctions sharing the same modulus and applications to the control of quantum systems. 2024. ⟨hal-04496433⟩
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