Quantum state tracking and control of a single molecular ion in a thermal environment

• URL: http://arxiv.org/abs/2312.17104v2
• Date: Thu, 1 Aug 2024 22:43:50 GMT
• Title: Quantum state tracking and control of a single molecular ion in a thermal environment
• Authors: Yu Liu, Julian Schmidt, Zhimin Liu, David R. Leibrandt, Dietrich Leibfried, Chin-wen Chou,
• Abstract summary: We report real-time observations of thermal radiation-driven transitions between individual states of a single molecule. We reversed these "jumps" through microwave-driven transitions, resulting in a twentyfold improvement in the time the molecule dwells in a chosen state.
• Score: 4.600707934773013
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Understanding molecular state evolution is central to many disciplines, including molecular dynamics, precision measurement, and molecule-based quantum technology. Details of the evolution are obscured when observing a statistical ensemble of molecules. Here, we reported real-time observations of thermal radiation-driven transitions between individual states ("jumps") of a single molecule. We reversed these "jumps" through microwave-driven transitions, resulting in a twentyfold improvement in the time the molecule dwells in a chosen state. The measured transition rates showed anisotropy in the thermal environment, pointing to the possibility of using single molecules as in-situ probes for the strengths of ambient fields. Our approaches for state detection and manipulation could apply to a wide range of species, facilitating their uses in fields including quantum science, molecular physics, and ion-neutral chemistry.

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