Quantum State Control via Trap-induced Shape Resonance in Ultracold Atomic Collisions
arXiv:quant-ph/0304093 · doi:10.1103/PhysRevLett.91.183201
Abstract
We investigate controlled collisions between trapped but separated ultracold atoms. The interaction between atoms is treated self-consistently using an energy-dependent delta-function pseudopotential model, whose validity we establish. At a critical separation, a "trap-induced shape resonance" between a molecular bound states and a vibrational eigenstate of the trap can occur. This resonance leads to an avoided crossing in the eigenspectrum as a function of separation. We investigate how this new resonance can be employed for quantum control.
4 pages, 3 figures, RevTeX; final version
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