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Quantum State Via Trap-Induced Shape Resonance in Ultracold Atomic Collisions
Published
Author(s)
R Stock, I H. Deutsch, E L. Bolda
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.
Stock, R.
, Deutsch, I.
and Bolda, E.
(2021),
Quantum State Via Trap-Induced Shape Resonance in Ultracold Atomic Collisions, Physical Review Letters
(Accessed October 10, 2025)