Quantum limit of optical magnetometry in the presence of ac-Stark shifts
arXiv:quant-ph/0001072 · doi:10.1103/PhysRevA.62.013808
Abstract
We analyze systematic (classical) and fundamental (quantum) limitations of the sensitivity of optical magnetometers resulting from ac-Stark shifts. We show that in contrast to absorption-based techniques, the signal reduction associated with classical broadening can be compensated in magnetometers based on phase measurements using electromagnetically induced transparency (EIT). However due to ac-Stark associated quantum noise the signal-to-noise ratio of EIT-based magnetometers attains a maximum value at a certain laser intensity. This value is independent on the quantum statistics of the light and defines a standard quantum limit of sensitivity. We demonstrate that an EIT-based optical magnetometer in Faraday configuration is the best candidate to achieve the highest sensitivity of magnetic field detection and give a detailed analysis of such a device.
11 pages, 4 figures
References in corpus (1)
Cited by in corpus (32)
- Optical Magnetometry
- Resonant nonlinear magneto-optical effects in atoms
- Interaction-based quantum metrology showing scaling beyond the Heisenberg limit
- Squeezed-Light Optical Magnetometry
- Storing light with subradiant correlations in arrays of atoms
- Enhancement of Kerr nonlinearity via multi-photon coherence
- Quantum Enhanced Magnetometer with Low-Frequency Squeezing
- Radiation trapping in coherent media
- Optimal Atomic Quantum Sensing using EIT Readout
- Interaction of light with planar lattices of atoms: Reflection, transmission and cooperative magnetometry
- Nonlinear Magneto-Optical Rotation of Elliptically Polarized Light
- Cooperative quantum-optical planar arrays of atoms
- Coherent Control of Magneto-optical Rotation in Inhomogeneously Broadened Medium
- Quantum metrology with generalized cat states
- Laser induced breakdown of the magnetic field reversal symmetry in the propagation of unpolarized light
- Detection of a weak magnetic field via cavity enhanced Faraday rotation
- Electromagnetically induced transparency in a V-system with Rb vapor in the hyperfine Paschen-Back regime
- Coherent medium as a polarization splitter of pulses
- Electromagnetically induced transparency in inhomogeneously broadened solid media
- Linear and nonlinear magneto-optical rotation on the narrow strontium intercombination line
- Nonlinear magneto-optical rotation in optically thick media
- Experimental studies of light propagation and storage
- Intensity correlations in resonance nonlinear magneto-optical rotation
- Quantum lock-in detection of a vector light shift
- Transverse optical pumping of spin states
- Probing vacuum-induced coherence via magneto-optical rotation in molecular systems
- Fisher information analysis on quantum-enhanced parameter estimation in electromagnetically-induced-transparency spectrum with single photons
- Light slowdown in the vicinity of cross-over resonances
- Homodyne detection of a two-photon resonance assisted by cooperative emission
- Algebraic metrology: Pretty good states and bounds
- Characterization and generation of a SQL-beating catlike state through repetitive measurements
- Direct Imaging of Slow, Stored, and Stationary EIT Polaritons