Closed-loop Quantum Parameter Estimation: Spins in a Magnetic Field

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dc.creatorGeremia, JM
dc.creatorStockton, John K.
dc.creatorMabuchi, Hideo
dc.date2003-09-03
dc.date.accessioned2026-07-07T06:07:45Z
dc.date.available2026-07-07T06:07:45Z
dc.descriptionWe present an experimental demonstration of closed-loop quantum parameter estimation in which real-time feedback is used to achieve robustness to modeling uncertainty. By performing broadband estimation of a magnetic field acting on hyperfine spins in a cold atom ensemble, we show that accuracy is not compromised by fluctuations in total atom number even though the measured signal in our canonical configuration depends only on the product of the field and atom number. This methodology could be essential for efforts to utilize conditional squeezing in spin-resonance measurements.
dc.identifierhttps://arxiv.org/abs/quant-ph/0309034
dc.identifierhttp://arxiv.org/abs/quant-ph/0309034
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91400
dc.subjectQuantum Physics
dc.titleClosed-loop Quantum Parameter Estimation: Spins in a Magnetic Field
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