Light shift averaging in paraffin-coated alkali vapor cells

Abstract

Light shifts are an important source of noise and systematics in optically pumped magnetometers. We demonstrate that the long spin coherence time in paraffin-coated cells leads to spatial averaging of the light shifts over the entire cell volume. This renders the averaged light shift independent, under certain approximations, of the light-intensity distribution within the sensor cell. These results and the underlying mechanism can be extended to other spatially varying phenomena in anti-relaxation-coated cells with long coherence times.

arXiv comment6 pages, 4 figures

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Cited by in corpus (10)

• Constraints on long-range spin-gravity and monopole-dipole couplings of the proton
• Characterization of high-temperature performance of cesium vapor cells with anti-relaxation coating
• Transient dynamics of nonlinear magneto-optical rotation
• In-situ measurement of light polarization with ellipticity-induced nonlinear magneto-optical rotation
• Limitations of rotating-wave approximation in magnetic resonance: Characterization and elimination of the Bloch-Siegert shift in magneto-optics
• A single atom noise probe operating beyond the Heisenberg limit
• Optimized experimental optical tomography of quantum states of room-temperature alkali-metal vapor
• Optical reconstruction of collective density matrix of qutrit
• A measurement method of transverse light-shift in atomic spin co-magnetometer
• Isolating Pure Quadratic Zeeman Splitting