Quantum State Control via Trap-induced Shape Resonance in Ultracold Atomic Collisions

Phys. Rev. Lett. 91, 183201 (2003) 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 &...

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Bibliographic Details
Main Authors Stock, R, Bolda, E. L, Deutsch, I. H
Format Journal Article
LanguageEnglish
Published 12.04.2003
Subjects
Physics - Atomic Physics
Physics - Quantum Physics
Physics - Soft Condensed Matter
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Summary:Phys. Rev. Lett. 91, 183201 (2003) 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.
DOI:10.48550/arxiv.quant-ph/0304093