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Pré-Publication, Document De Travail Année : 2023

Invariant Gibbs measures for 1D NLS in a trap

Résumé

We consider the one dimensional cubic nonlinear Schrödinger equation with trapping potential behaving like |x| s (s > 1) at infinity. We construct Gibbs measures associated to the equation and prove that the Cauchy problem is globally well-posed almost surely on their support. Consequently, the Gibbs measure is indeed invariant under the flow of the equation. We also address the construction and invariance of canonical Gibbs measures, conditioned on the L 2 mass.
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Dates et versions

hal-03926436 , version 1 (06-01-2023)
hal-03926436 , version 2 (30-01-2023)

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Van Duong Dinh, Nicolas Rougerie. Invariant Gibbs measures for 1D NLS in a trap. 2023. ⟨hal-03926436v2⟩
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