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Poster Session

Poster Session II

4:00 pm – 6:00 pm, Wednesday June 18 Session H00 Oregon Convention Center, Exhibit Hall E
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Effects of Interactions and Pairing in a Quantum Kicked Rotor with Ultracold Fermions

Poster 104
Presenter: Daniel G Allman (University of Washington)
Collaboration: <br /><br><strong>Daniel Allman, Nicolas Williams, Ian Wang, Subhadeep Gupta</strong>

The quantum kicked rotor (QKR) is a deceptively simple theoretical model that exhibits rich transport phenomena, including a momentum-space analogue of the celebrated Anderson localization effect. In earlier work we realized an atom-optics version of the QKR using Bose-Einstein condensates in a pulsed optical lattice. We observed the interaction dependance of the dynamical Anderson localization in 1D [SeeToh 22] and the Anderson Metal-Insulator transition in 3D [SeeToh 24]. While this localization, distinguished by a saturation in energy growth, occurs for kicking periods incommensurate with the inverse lattice recoil frequency, resonances and anti-resonances can emerge in the system’s energy evolution for commensurate kicking periods. Due to the mass dependence of the recoil frequency, a QKR’s energy spectrum can provide insight into pairing processes. We will report on progress towards experimental realization of the QKR in ultracold 6Li, with a focus on employing the QKR spectrum to probe pairing and superfluidity throughout the BEC-BCS crossover. 

Funding acknowledgement

We acknowledge funding from DoD AFOSR FA9550-22-1-0240.

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