Effect of optical-lattice heating on the momentum distribution of a one-dimensional Bose gas

  title={Effect of optical-lattice heating on the momentum distribution of a one-dimensional Bose gas},
  author={J. F. Riou and Laura A. Zundel and Aaron Reinhard and David S. Weiss},
  journal={Physical Review A},
We theoretically study how excitations due to spontaneous emission and trap fluctuations combine with elastic collisions to change the momentum distribution of a trapped non-degenerate one-dimensional (1D) Bose gas. Using calculated collisional relaxation rates, we first present a semi-analytical model for the momentum distribution evolution to get insight into the main processes responsible for the system dynamics. We then present a Monte-Carlo simulation that includes features that cannot be… 

Figures from this paper

Generalized hydrodynamics in strongly interacting 1D Bose gases
Results show that GHD can accurately describe the quantum dynamics of a 1D nearly integrable experimental system even when particle numbers are low and density changes are large and fast.
Energy-Dependent Three-Body Loss in 1D Bose Gases.
It is found that the three-body collision rate in one-dimension is strongly energy dependent, as predicted by a strictly 1D theory, and the observed loss to the adapted theory is compared to find that they agree well.
Thermalization near Integrability in a Dipolar Quantum Newton's Cradle
Isolated quantum many-body systems with integrable dynamics generically do not thermalize when taken far from equilibrium. As one perturbs such systems away from the integrable point, thermalization
One-dimensional atomic superfluids as a model system for quantum thermodynamics
In this chapter we will present the one-dimensional (1d) quantum degenerate Bose gas (1d superfluid) as a testbed to experimentally illustrate some of the key aspects of quantum thermodynamics.
Relaxation of bosons in one dimension and the onset of dimensional crossover
We study ultra-cold bosons out of equilibrium in a one-dimensional (1D) setting and probe the breaking of integrability and the resulting relaxation at the onset of the crossover from one to three


Beautiful Models: 70 Years of Exactly Solved Quantum Many-Body Problems
A key element of theoretical physics is the conceptualisation of physical phenomena in terms of models, which are then investigated by the tools at hand. For quantum many-body systems, some models
however (for it was the literal soul of the life of the Redeemer, John xv. io), is the peculiar token of fellowship with the Redeemer. That love to God (what is meant here is not God’s love to men)
  • Rev. A 86, 033412
  • 2012
Nature 440
  • 900
  • 2006
  • Rev. A 58, 3914
  • 1998
  • Rev. B 84, 054304
  • 2011
  • Rev. A 82, 013615
  • 2010
  • Rev. A 82, 063605
  • 2010
Nature 452
  • 854
  • 2008
Nature 449
  • 324
  • 2007