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Trapped Ion Quantum Computing

Projected Optimal Sensors from Operator Orbits

arXiv
Authors: Sooryansh Asthana, Yeshma Ibrahim, Norman Tze Wei Koo, Sai Vinjanampathy

Year

2025

Paper ID

36531

Status

Preprint

Abstract Read

~2 min

Abstract Words

80

Citations

N/A

Abstract

We unify Ramsey, twist-untwist, and random quantum sensors using operator algebra and account for the Fisher scaling of various sensor designs. We illustrate how the operator orbits associated with state preparation inform the scaling of the sensitivity with the number of subsystems. Using our unified model, we design a novel set of sensors in which a projected ensemble of quantum states exhibits beyond-shot-noise metrological performance. We also show favorable scaling of Fisher information with decoherence models and loss of particles.

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  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
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  • We unify Ramsey, twist-untwist, and random quantum sensors using operator algebra and account for the Fisher scaling of various sensor designs.

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