Quantum Error Correction and the Limits of Quantum Metrology

Abstract:Quantum metrology has been making amazing progress in the past decades. It is always in researchers' interest to search for new optimal states that improve parameter estimation. In this paper, we point out a connection between the code's error correcting capacity and its ability to act as a sensor. We backed our claim by providing an example that relates the Absorption emission code to the sensor state for arbitrary state rotation. It is hoped that, in building such a unified theory, one can draw inspiration from error correction to develop promising quantum sensors.

Quantum Physics (quant-ph); Optics (physics.optics)

arXiv:2605.24120 [quant-ph]

(or arXiv:2605.24120v2 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2605.24120 Focus to learn more arXiv-issued DOI via DataCite

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