2025/01/31 by Anthony N. Zulli, Zulli, Anthony N., Brendan C. Mulkerin +5 · 1 citation
Engineering · Physics and Astronomy · #Atomic and Subatomic Physics Research #Characterization and Applications of Magnetic Nanoparticles #FOS: Physical sciences #Quantum Gases (cond-mat.quant-gas) #Quantum, superfluid, helium dynamics
paper · pdf · doi:10.48550/arxiv.2501.18844
openalex publication_date 2025/01/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the behavior of the Efimov effect -- a universal quantum few-body phenomenon -- in the presence of an external driving field. Specifically, we consider up to three bosonic atoms, such as 133Cs, interacting with a light atom, such as 6Li, where the latter has two internal spin states \\uparrow, \downarrow\ that are Rabi coupled. Assuming that only the spin-\uparrow light atom interacts with the bosons, we find that the Rabi drive transposes the entire Efimov spectrum such that the Efimov trimers and tetramers are centered around the Rabi-shifted two-body scattering resonance. Crucially, we show that the Rabi drive preserves the trimers' discrete scaling symmetry, while universally shifting the Efimov three-body parameter, leading to a log-periodic modulation in the spectrum as the Rabi drive is varied. Our results suggest that Efimov physics can be conveniently explored using an applied driving field, opening up the prospect of an externally tunable three-body parameter.