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A quantum-chaotic cesium-vapor magnetometer
Author(s): Lukas J. Fiderer; Daniel Braun
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Paper Abstract

Quantum-enhanced measurements represent the path towards the best measurement precision allowed by the laws of quantum mechanics. Known protocols usually rely on the preparation of entangled states and promise high or even optimal precision, but fall short in real-word applications because of the difficulty to generate entangled states and to protect them against decoherence. Here, we refrain from the preparation of entangled states but supplement the integrable parameter-encoding dynamics by non-linear kicks driving the system in the dynamical regime of quantum chaos. We show that large improvements in measurement precision are possible by modeling a spin-exchange relaxation-free alkali-vapor magnetometer where the non-linear kicks are realized by exploiting the ac Stark effect.

Paper Details

Date Published: 1 March 2019
PDF: 9 pages
Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 109342S (1 March 2019); doi: 10.1117/12.2515204
Show Author Affiliations
Lukas J. Fiderer, Univ. Tübingen (Germany)
Daniel Braun, Univ. Tübingen (Germany)


Published in SPIE Proceedings Vol. 10934:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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