Investigations of a two-mode atom laser model

Abstract

Atom lasers based on rf-outcoupling from a trapped Bose-Einstein condensate can be described by a set of generalized, coupled Gross-Pitaevskii equations (GPE). If not only one but two radio frequencies are used for outcoupling, the atoms emerging from the trap have two different energies and the total wavefunction of the untrapped spin-state is a coherent superposition which leads to a pulsed atomic beam. We present results for such a situation obtained from a 1D-GPE model for magnetically trapped Rb-87 in the F=1 state. The wavefunction of the atomic beam can be approximated by a sum of two Airy functions. In the limit of weak coupling we calculate the intensity analytically.

7 pages, 7 figures, submitted to Phys. Rev. A

References in corpus (10)

• Theory of Bose-Einstein condensation in trapped gases
• An Atom Laser with a cw Output Coupler
• The Born and Markov approximations for atom lasers
• Generic model of an atom laser
• The steady state quantum statistics of a non-Markovian atom laser
• Output from an atom laser: theory vs. experiment
• The Markov approximation for the atomic output coupler
• Non-Markovian dynamics in pulsed and continuous wave atom lasers
• Self-consistent effects of continuous wave output coupling of atoms from a Bose-Einstein condensate
• Theory of strong outcoupling from Bose-Einstein condensates

Cited by in corpus (8)

• Theoretical tools for atom laser beam propagation
• Atom laser dynamics
• Fringe spacing and phase of interfering matter waves
• Gravitational Caustics in an Atom Laser
• Magnetic noise spectrum measurement by an atom laser in gravity
• Wave-packet analysis of interference patterns in output coupled atoms
• Theory of output coupling for trapped fermionic atoms
• Atomic scattering from Bose-Einstein condensates