Atomic and molecular matter fields in periodic potentials

Details Atomic and molecular matter fields in periodic potentials Atomic and molecular matter fields in periodic potentials

2003-11-26

arxiv.org/abs/cond-mat/0311603v1

Physics

Condensed Matter

Invited talk at 'Quantum Challenges', Falenty, Poland, Sep. 2003. Submitted to J. Mod. Opt

Scientific paper

This paper deals with the conversion between atoms and molecules in optical lattices. We show that in the absence of collisional interaction, the atomic and molecular components in different lattice wells combine into states with macroscopic condensate fractions, which can be observed as a strong diffraction signal, if the particles are abruptly released from the lattice. The condensate population, and the diffraction signal are governed not only by the mean number of atoms or molecules in each well, but by the precise amplitudes on state vector components with different numbers of particles. We discuss ways to control these amplitudes and to maximize the condensate fraction in the molecular formation process.

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