Experimental evidence for dipole-phonon quantum logic in a trapped calcium monoxide and calcium ion chain

2024/11/11 by Lu Qi, Qi, Lu, Evan C. Reed +6 · 1 voice · 2 citations
Engineering · Physics and Astronomy · #Advanced Memory and Neural Computing #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Mechanical and Optical Resonators #Quantum Physics (quant-ph) #Spectroscopy and Quantum Chemical Studies #physics.atom-ph #quant-ph

paper · pdf · doi:10.48550/arxiv.2411.07137

openalex publication_date 2024/11/11 · arxiv published 2024/11/11 · arxiv updated 2024/11/11 · openalex created_date 2024/11/15 · openalex updated_date 2026/07/28

Abstract

Dipole-phonon quantum logic (DPQL) offers novel approaches for state preparation, measurement, and control of quantum information in molecular ion qubits. In this work, we demonstrate an experimental implementation of DPQL with a trapped calcium monoxide and calcium ion chain at room temperature. We present evidence for one DPQL signal in two hours of data collection. The signal rises clearly above the characterized noise level and has a lower bound on the statistical significance of 4.1σ. The rate of observation is limited by the low thermal population in the molecular ground rotational state.

Cited by

• Sympathetic rotational cooling of large trapped molecular ions
• High-fidelity quantum state control of a polar molecular ion in a cryogenic environment

Discussions

• It was great to give an invited talk at #DAMOP 2025 on our dipole-phonon quantum logic updating the community on our experimental progress since arxiv.org/abs/2411.07137 We still need more data to con [bsky, 4 points, 1 comments]

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