Nonequilibrium coherence dynamics of a soft boson lattice

2005/04/28 by A. K. Tuchman, Chad Orzel, C. Orzel +4 · 2 citations
Physics and Astronomy · #Bose–Einstein condensate #Boson #Coherence (philosophical gambling strategy) #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Lattice (music) #Non-equilibrium thermodynamics #Nonlinear Photonic Systems #Optical lattice #Phase coherence #Physics #Quantum mechanics #Strong Light-Matter Interactions #Superfluidity #cond-mat.other #quant-ph

paper · pdf · doi:10.1103/physreva.74.051601

10 pages. 4 figures

arxiv created 2005/04/28 · openalex publication_date 2006/11/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study the nonequilibrium evolution of the phase coherence of a Bose-Einstein condensate in a one-dimensional optical lattice as the lattice array is suddenly quenched from a highly-number-squeezed to a superfluid state. We observe slowly damped phase coherence oscillations in the regime of large filling factor (\ensuremath∼100 bosons per site) at a frequency proportional to the generalized Josephson frequency.

Citations

• Nonequilibrium Gross-Pitaevskii dynamics of boson lattice models
• Efficient Simulation of One-Dimensional Quantum Many-Body Systems
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Evolution of the macroscopically entangled states in optical lattices
• Interferometric detection of optical phase shifts at the Heisenberg limit
• Quantum corrections to the dynamics of interacting bosons: Beyond the truncated Wigner approximation
• The Josephson plasmon as a Bogoliubov quasiparticle
• Effect of Quantum Fluctuations on the Dipolar Motion of Bose-Einstein Condensates in Optical Lattices

Cited by

• Ultracold Bosons in a Tilted Multilevel Double-Well Potential
• Finite-rate quenches of site bias in the Bose-Hubbard dimer