Relaxation to a Phase-locked Equilibrium State in a One-dimensional Bosonic Josephson Junction
arXiv:1711.06635 · doi:10.1103/PhysRevLett.120.173601
Abstract
We present an experimental study on the non-equilibrium tunnel dynamics of two coupled one-dimensional Bose-Einstein quasi-condensates deep in the Josephson regime. Josephson oscillations are initiated by splitting a single one-dimensional condensate and imprinting a relative phase between the superfluids. Regardless of the initial state and experimental parameters, the dynamics of the relative phase and atom number imbalance shows a relaxation to a phase-locked steady state. The latter is characterized by a high phase coherence and reduced fluctuations with respect to the initial state. We propose an empirical model based on the analogy with the anharmonic oscillator to describe the effect of various experimental parameters. A microscopic theory compatible with our observations is still missing.
arXiv comment9 pages, 5 figures
References in corpus (24)
- Thermalization and its mechanism for generic isolated quantum systems
- Nonequilibrium dynamics of closed interacting quantum systems
- Direct Observation of Tunneling and Nonlinear Self-Trapping in a single Bosonic Josephson Junction
- Relaxation in a Completely Integrable Many-Body Quantum System: An Ab Initio Study of the Dynamics of the Highly Excited States of Lattice Hard-Core Bosons
- Quantum many-body systems out of equilibrium
- Long Phase Coherence Time and Number Squeezing of two Bose-Einstein Condensates on an Atom Chip
- Ultracold atoms out of equilibrium
- On solving quantum many-body problems by experiment
- Integrated Mach-Zehnder interferometer for Bose-Einstein condensates
- Radio-frequency dressed state potentials for neutral atoms
- Exact quantum dynamics of a bosonic Josephson junction
- Adiabatic radio frequency potentials for the coherent manipulation of matter waves
- Linear response theory for a pair of coupled one-dimensional condensates of interacting atoms
- Dynamics of a tunable superfluid junction
- Single-particle-sensitive imaging of freely propagating ultracold atoms
- Quasi-1D Bose-Einstein condensates in the dimensional crossover regime
- Crossing Over from Attractive to Repulsive Interactions in a Tunneling Bosonic Josephson Junction
- Universal Rephasing Dynamics after a Quantum Quench via Sudden Coupling of Two Initially Independent Condensates
- Comment on ``Phase and Phase Diffusion of a Split Bose-Einstein Condensate''
- Yang-Yang thermometry and momentum distribution of a trapped one-dimensional Bose gas
- Multi-layer atom chips for versatile atom micro manipulation
- Non-equilibrium dynamics of coupled Luttinger liquids
- Relaxation dynamics of two coherently coupled one-dimensional bosonic gases
- Modulational instabilities in Josephson oscillations of elongated coupled condensates
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