Estimation of a classical parameter with Gaussian probes: Magnetometry with collective atomic spins

Journal Article · Mon Nov 01 04:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.052102· OSTI ID:20646160

Moelmer, Klaus ^[1]; Madsen, Lars Bojer ^[2]

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1. Danish National Research Foundation Center for Quantum Optics and Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark)
2. Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark)

We present a theory for the estimation of a classical magnetic field by an atomic sample with a Gaussian distribution of collective spin components. By incorporating the magnetic field and the probing laser field as quantum variables with Gaussian distributions on equal footing with the atoms, we obtain a very versatile description which is readily adapted to include probing with squeezed light, dissipation, and loss and additional measurement capabilities on the atomic system.

• OSTI ID: 20646160
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
GAUSS FUNCTION
LASER RADIATION
MAGNETIC FIELDS
MAGNETOMETERS
OPTICS
PROBES
QUANTUM MECHANICS
SPIN
VISIBLE RADIATION