Confinement Induced Resonance with Weak Bare Interaction in a Quasi 3+0 Dimensional Ultracold Gas
arXiv:1910.04545 · doi:10.1007/s00601-019-1530-z
Abstract
Confinement induced resonance (CIR) is a useful tool for the control of the interaction between ultracold atoms. In most cases the CIR occurs when the characteristic length atrap of the confinement is similar as the scattering length as of the two atoms in the free three-dimensional (3D) space. If there is a CIR which can occur with weak bare interaction, i.e., under the condition , then it can be realized for much more systems, even without the help of a magnetic Feshbach resonance, and would be very useful. In a previous research by Massignan and Castin (Phys Rev A 74:013616, 2006), it was shown that it is possible to realize such a CIR in a quasi-(3+0)D system, where one ultracold atom is moving in the 3D space and another one is localized by a 3D harmonic trap. In this work we carefully investigate the properties of the CIRs in this system. We show that the CIR with can really occur, and the number of the CIRs of this type increases with the mass ratio between the moving and localized atoms. However, when the CIR becomes extremely narrow, and thus are difficult to be controlled in realistic experiments.
References in corpus (34)
- Many-Body Physics with Ultracold Gases
- Feshbach Resonances in Ultracold Gases
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- Production of cold molecules via magnetically tunable Feshbach resonances
- Tuning the scattering length with an optically induced Feshbach resonance
- Influence of nearly resonant light on the scattering length in low-temperature atomic gases
- Interatomic collisions in a tightly confined Bose gas
- Confinement-Induced Resonances in Low-Dimensional Quantum Systems
- Nanometer-scale spatial modulation of an inter-atomic interaction in a Bose-Einstein condensate
- Localized magnetic moments with tunable spin exchange in a gas of ultracold fermions
- Scattering in Mixed Dimensions with Ultracold Gases
- Systematic study of Optical Feshbach Resonances in an ideal gas
- Universal Fermi gases in mixed dimensions
- Controlling Condensate Collapse and Expansion with an Optical Feshbach Resonance
- Microscopic derivation of Hubbard parameters for cold atomic gases
- Three-dimensional strong localization of matter waves by scattering from atoms in a lattice with a confinement-induced resonance
- Coherent molecule formation in anharmonic potentials near confinement-induced resonances
- Suppression of Quantum Scattering in Strongly Confined Systems
- Extended molecules and geometric scattering resonances in optical lattices
- Inelastic Confinement-Induced Resonances in Low-Dimensional Quantum Systems
- Multi-Channel Atomic Scattering and Confinement-Induced Resonances in Waveguides
- Dipolar confinement-induced resonances of ultracold gases in waveguides
- Confinement induced resonances in anharmonic waveguides
- Quantum dynamics of resonant molecule formation in waveguides
- Rabi Oscillations between Atomic and Molecular Condensates Driven with Coherent One-Color Photoassociation
- Resonance Scattering in Optical Lattices and Molecules: Interband versus Intraband Effects
- Confinement-induced Resonances in Quasi-one-dimensional Traps with Transverse Anisotropy
- Enhancing Kondo Coupling in Alkaline-Earth Atomic Gases with Confinement-induced Resonances in Mixed Dimensions
- Observation of a p-wave Optical Feshbach Resonance
- Multichannel Effects near Confinement-Induced Resonances in Harmonic Waveguides
- Theory of inelastic confinement-induced resonances due to the coupling of center-of-mass and relative motion
- Confinement-Induced Resonances in Ultracold Atom-Ion Systems
- Impact of ion motion on atom-ion confinement-induced resonances in hybrid traps
- Confinement-Induced Resonances in Two-Center Problem via Pseudopotential Approach