Work

Spin dynamics dominated by superexchange via virtual molecules

Year: 2022

Type: preprint

Abstract: Simple, paradigmatic systems are important tools in understanding strongly correlated systems. One such system is the Bose-Hubbard model, which can be realized using atoms in optical lattices with delta-function interactions. We report the first experimental observation of two features of the Bose-Hubbard model: superexchange via virtual molecules in excited bands and off-site contact interactions. Adiabatic sweeps confirm the creation of such molecules, exemplifying a new kind of Feshbach resonance.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2208.06054

Authors: Lee, Yoo Kyung, Lin, Hanzhen, Ketterle, Wolfgang

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Aspen Center for Physics, Defense Advanced Research Projects Agency, Center for Ultracold Atoms, Massachusetts Institute of Technology

Awards: G2229954460, G2432923657, A Program in Ultralow-Temperature Atomic Physics, G5927126518, Graduate Research Fellowship Program (GRFP), Programs on Critical Problems in Physics, Astrophysics and Biophysics at the Aspen Center for Physics

OpenAlex ID: W4291961433

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