2021/07/02 by Da An, Alberto M. Alonso, Clemens Matthiesen +1
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Conductor #Coupling (piping) #Electrical conductor #Ion #Metal #Noise (video) #Quantum Information and Cryptography #Quantum chaos and dynamical systems #Surface (topology) #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physrevlett.128.063201
arxiv created 2021/07/02 · openalex created_date 2021/07/19 · openalex publication_date 2022/02/07 · arxiv updated 2022/02/16 · openalex updated_date 2026/08/05
We demonstrate coupling between the motions of two independently trapped ions with a separation distance of 620 μm. The ion-ion interaction is enhanced via a room-temperature electrically floating metallic wire which connects two surface traps. Tuning the motion of both ions into resonance, we show flow of energy with a coupling rate of 11 Hz. Quantum-coherent coupling is hindered by strong surface electric-field noise in our device. Our ion-wire-ion system demonstrates that room-temperature conductors can be used to mediate and tune interactions between independently trapped charges over distances beyond those achievable with free-space dipole-dipole coupling. This technology may be used to sympathetically cool or entangle remotely trapped charges and enable coupling between disparate physical systems.