Coupling two laser-cooled ions via a room-temperature conductor

We demonstrate coupling between the motions of two independently trapped ions with a separation distance of 620 \(\mu\)m. 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...

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Bibliographic Details
Published in:arXiv.org 2021-07
Main Authors: An, Da, Alonso, Alberto M, Matthiesen, Clemens, Häffner, Hartmut
Format: Article
Language:English
Subjects:
Conductors
Dipole interactions
Electric fields
Laser cooling
Room temperature
Wire
Online Access:Get full text
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Summary:We demonstrate coupling between the motions of two independently trapped ions with a separation distance of 620 \(\mu\)m. 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.
ISSN:2331-8422
DOI:10.48550/arxiv.2107.00851