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Article Dans Une Revue Stochastic Processes and their Applications Année : 2023

Limit theorems for Quantum Trajectories

Résumé

Quantum trajectories are Markov processes modeling the evolution of a quantum system subjected to repeated independent measurements. Under purification and irreducibility assumptions, these Markov processes admit a unique invariant measure - see Benoist et al. Probab. Theory Relat. Fields 2019. In this article we prove, finer limit theorems such as Law of Large Number (LLN), Functional Central Limit Theorem, Law of Iterated Logarithm and Moderate Deviation Principle. The proof of the LLN is based on Birkhoff's ergodic theorem and an analysis of harmonic functions. The other theorems are proved using martingale approximation of empirical sums.
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Dates et versions

hal-03987853 , version 1 (08-01-2024)

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Tristan Benoist, Jan-Luka Fatras, Clément Pellegrini. Limit theorems for Quantum Trajectories. Stochastic Processes and their Applications, 2023, 164, pp.288-310. ⟨10.1016/j.spa.2023.07.014⟩. ⟨hal-03987853⟩
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