Cancellation of nonlinear Zeeman shifts with light shifts

Abstract

Nonlinear Zeeman (NLZ) shifts arising from magnetic-field mixing of the two hyperfine ground-states in alkali atoms lead to splitting of magnetic-resonance lines. This is a major source of sensitivity degradation and the so-called "heading errors" of alkali-vapor atomic magnetometers operating in the geophysical field range (B approx. 0.2-0.7 G). Here, it is shown theoretically and experimentally that NLZ shifts can be effectively canceled by light shifts caused by a laser field of appropriate intensity, polarization and frequency, a technique that can be readily applied in practical situations.

5 pages, 5 figures, to be published in PRA

References in corpus (9)

• Optical Magnetometry
• Quantum State Engineering and Precision Metrology using State-Insensitive Light Traps
• High-Resolution Magnetometry with a Spinor Bose-Einstein Condensate
• Spin squeezing of atomic ensembles via nuclear-electronic spin entanglement
• Nonlinear magneto-optical rotation with frequency-modulated light in the geophysical field range
• Synchronous Optical Pumping of Quantum Revival Beats for Atomic Magnetometery
• Magic frequencies for cesium primary frequency standard
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• A dual-isotope rubidium comagnetometer to search for anomalous long-range spin-mass (spin-gravity) couplings of the proton
• Heading-error-free optical atomic magnetometry in the Earth-field range
• Performance analysis of an optically pumped magnetometer in Earth's magnetic field
• Multicriticality and quantum fluctuation in generalized Dicke model
• In-situ measurement of light polarization with ellipticity-induced nonlinear magneto-optical rotation
• Reduction of frequency-dependent light shifts in light-narrowing regimes: A study using effective master equations
• Measurement of the ratio between g-factors of the ground states of ${}^{87}$Rb and ${}^{85}$Rb
• Correcting heading errors in optically pumped magnetometers through microwave interrogation
• Tricritical Dicke model with and without dissipation
• Entanglement-enhanced test proposal for local Lorentz-symmetry violation via spinor atoms
• Influence of quadratic Zeeman effect on spin waves in dipolar lattices
• Regulating spin reversal in dipolar systems by the quadratic Zeeman effect
• Spin dynamics in lattices of spinor atoms with quadratic Zeeman effect
• Calibration of Spin-Light Coupling by Coherently Induced Faraday Rotation
• Coherence Protection of Electron Spin in Earth-field Range by All-optical Dynamic Decoupling