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Invariant measures and large deviation principles for stochastic Schrödinger delay lattice systems

Part of: Infinite-dimensional dissipative dynamical systems Stochastic analysis Limit theorems

Published online by Cambridge University Press:  04 March 2024

Zhang Chen ,
Xiaoxiao Sun  and
Bixiang Wang
Zhang Chen
Affiliation:
School of Mathematics, Shandong University, Jinan 250100, People's Republic of China (zchen@sdu.edu.cn, xsun@mail.sdu.edu.cn)
Xiaoxiao Sun
Affiliation:
School of Mathematics, Shandong University, Jinan 250100, People's Republic of China (zchen@sdu.edu.cn, xsun@mail.sdu.edu.cn)
Bixiang Wang
Affiliation:
Department of Mathematics, New Mexico Institute of Mining and Technology, Socorro 87801, NM, USA (bwang@nmt.edu)
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Abstract

This paper is concerned with stochastic Schrödinger delay lattice systems with both locally Lipschitz drift and diffusion terms. Based on the uniform estimates and the equicontinuity of the segment of the solution in probability, we show the tightness of a family of probability distributions of the solution and its segment process, and hence the existence of invariant measures on $l^2\times L^2((-\rho,\,0);l^2)$ with $\rho >0$. We also establish a large deviation principle for the solutions with small noise by the weak convergence method.

Keywords

Stochastic Schrödinger lattice systemtime delayinvariant measuretightnesslarge deviation principleLaplace principleweak convergence

MSC classification

Primary: 37L40: Invariant measures
Secondary: 37L55: Infinite-dimensional random dynamical systems; stochastic equations 60F10: Large deviations 60H10: Stochastic ordinary differential equations

Information

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh Section A: Mathematics , Volume 155 , Issue 5 , October 2025 , pp. 1813 - 1854
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of The Royal Society of Edinburgh

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