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arXiv · 2111.10506

Quantum metrology with Bloch Oscillations in Floquet phase space

Keye Zhang·Weijie Liang·Pierre Meystre·Weiping Zhang
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Abstract

Quantum particles performing Bloch oscillations in a spatially periodic potential can be used as a very accurate detector of constant forces. We find that the similar oscillations that can appear in the Floquet phase space of a quantum particle subjected a periodic temporal driving, even in the absence of periodic lattice potential, can likewise be exploited as detectors. Compared with their spatial Bloch analog, however, the Floquet-Bloch oscillations provide significant added flexibility and open the way to a broad range of precision metrology applications. We illustrate this property on the examples of a tachometer and a magnetometer.

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Keye Zhang, Weijie Liang, Pierre Meystre, Weiping Zhang. 2021-11-20. Quantum metrology with Bloch Oscillations in Floquet phase space. https://doi.org/10.1103/physreva.107.022605

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