Quantum Kalman Filtering and the Heisenberg Limit in Atomic Magnetometry

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dc.creatorGeremia, JM
dc.creatorStockton, John K.
dc.creatorDoherty, Andrew C.
dc.creatorMabuchi, Hideo
dc.date2003-06-28
dc.date2003-12-21
dc.date.accessioned2026-07-07T06:07:12Z
dc.date.available2026-07-07T06:07:12Z
dc.descriptionThe shot-noise detection limit in current high-precision atomic magnetometry is a manifestation of quantum fluctuations that scale as the square root of N in an ensemble of N particles. However, there is a general expectation that the reduced projection noise provided by conditional spin-squeezing could be exploited to surpass the conventional shot-noise limit. We show that continuous measurement coupled with quantum Kalman filtering provides an optimal procedure for magnetic detection limits that scale with 1/N, the Heisenberg squeezing limit. Our analysis demonstrates the importance of optimal estimation procedures for high bandwidth precision magnetometry.
dc.descriptionMore details are available at http://minty.caltech.edu/Ensemble
dc.identifierhttps://arxiv.org/abs/quant-ph/0306192
dc.identifierhttp://arxiv.org/abs/quant-ph/0306192
dc.identifierPhys. Rev. Lett. 91, 250801 (2003)
dc.identifierdoi:10.1103/PhysRevLett.91.250801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91209
dc.subjectQuantum Physics
dc.titleQuantum Kalman Filtering and the Heisenberg Limit in Atomic Magnetometry
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