2007/10/20 by A. Robertson, Lei Jiang, Robertson, Andrew +7
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Other Condensed Matter (cond-mat.other) #Quantum optics and atomic interactions
paper · pdf · doi:10.48550/arxiv.0710.3811
openalex publication_date 2007/10/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We show that a robust macroscopic atom-molecule dark state can exist in fermionic systems, which represents a coherent superposition between the ground molecular BEC and the atomic BCS paired state. We take advantage of the tunability offered by external laser fields, and explore this superposition for demonstrating coherent oscillations between ground molecules and atom pairs. We interpret the oscillation frequencies in terms of the collective excitations of the dark state.