Quantum

Mode-Selective Micromotion Compensation via Coherent Excitation of a Ground-State-Cooled Motional Mode

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 23/10/2026, 04:13:25 UTC.

Briefings

A new method for micromotion compensation in trapped-ion experiments uses coherent excitation of a ground-state-cooled motional mode via an auxiliary RF drive, detected through a qubit. This approach offers better compatibility with quantum-enhanced sensing protocols than existing displacement monitoring techniques. The optimal compensation field was determined with a 1-sigma statistical uncertainty of 8 mV/m.

Key points

• The method converts ion displacement into a coherent motional excitation using an auxiliary RF drive, which is detected via a qubit.
• The optimal compensation field was determined with a 1-sigma statistical uncertainty of 8 mV/m.

Context

This research addresses excess micromotion from stray DC electric fields that limits control fidelity in trapped-ion experiments. It provides a pathway toward quantum-enhanced micromotion compensation compatible with nonclassical motional states.

Limitations

The evidence is from an arXiv preprint dated October 2026, indicating preprint status and uncertainty. The study focuses on a specific ground-state-cooled motional mode and does not cover other motional states or experimental setups.

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