Effects of interatomic collisions on atom laser outcoupling

Abstract

We present a computational approach to the outcoupling in a simple one-dimensional atom laser model, the objective being to circumvent mathematical difficulties arising from the breakdown of the Born and Markov approximations. The approach relies on the discretization of the continuum representing the reservoir of output modes, which allows the treatment of arbitrary forms of outcoupling as well as the incorporation of non-linear terms in the Hamiltonian, associated with interatomic collisions. By considering a single-mode trapped condensate, we study the influence of elastic collisions between trapped and free atoms on the quasi steady-state population of the trap, as well as the energy distribution and the coherence of the outcoupled atoms.

25 pages, 11 figures, to appear in J. Phys. B

References in corpus (9)

• Realization of Bose-Einstein condensates in lower dimensions
• A quasi-pure Bose-Einstein condensate immersed in a Fermi sea
• Bose-Einstein Condensation in a Surface Micro Trap
• Low-dimensional Bose gases
• Bose-Einstein Condensation in a simple Microtrap
• Non-Markovian stochastic Schrödinger equations: Generalization to real-valued noise using quantum measurement theory
• Atom laser divergence
• A perturbative approach to non-Markovian stochastic Schrödinger equations
• Stability of continuously pumped atom lasers

Cited by in corpus (5)

• Entanglement trapping in a non-stationary structured reservoir
• Non-Markovian dynamics in atom-laser outcoupling from a double-well Bose-Einstein condensate
• Effects of relative phase and interactions on atom-laser outcoupling from a double-well Bose-Einstein condensate: Markovian and non-Markovian dynamics
• Generation of entanglement density within a reservoir
• Stationary quantum statistics of a non-Markovian atom laser