Prethermalization in one-dimensional Bose gases: description by a stochastic Ornstein-Uhlenbeck process

Abstract

We experimentally study the relaxation dynamics of a coherently split one-dimensional Bose gas using matterwave interference. Measuring the full probability distributions of interference contrast reveals the prethermalization of the system to a non-thermal steady state. To describe the evolution of noise and correlations we develop a semiclassical effective description that allows us to model the dynamics as a stochastic Ornstein-Uhlenbeck process.

Submitted to EPJ Special Topics for the special issue on "Novel Quantum Phases and Mesoscopic Physics in Quantum Gases", Lyon BEC 2012

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Cited by in corpus (6)

• Ultracold atoms out of equilibrium
• Thermalization and light cones in a model with weak integrability breaking
• Pre-relaxation in weakly interacting models
• Entanglement prethermalization in the Tomonaga-Luttinger model
• Prethermalization of quantum systems interacting with non-equilibrium environments
• Interferometry with Atoms