New classes of systematic effects in gas spin co-magnetometers

Abstract

Atomic co-magnetometers are widely used in precision measurements searching for spin interactions beyond the Standard Model. We describe a new ${}^3$He-${}^{129}$Xe co-magnetometer probed by Rb atoms and use it to identify two general classes of systematic effects in gas co-magnetometers, one associated with diffusion in second-order magnetic field gradients and another due to temperature gradients. We also develop a general and practical approach for calculating spin relaxation and frequency shifts due to arbitrary magnetic field gradients and confirm it experimentally.

arXiv comment5 pages, 4 figures

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• New Atomic probes for Dark Matter detection: Axions, Axion-like particles and Topological Defects
• Frequency shifts in noble-gas magnetometers
• Electric quadrupole shifts of the precession frequencies of ${}^{131}$Xe atoms in rectangular cells
• Searches for exotic spin-dependent interactions with spin sensors
• Isotope shift of nuclear magnetic resonances in 129Xe and 131Xe caused by spin-exchange pumping by alkali metal atoms
• Interactions between non-resonant rf fields and atoms with strong spin-exchange collisions
• All-Optical Single-Species Cesium Atomic Comagnetometer with Optical Free Induction Decay Detection
• Measurement of the ratio between g-factors of the ground states of ${}^{87}$Rb and ${}^{85}$Rb
• Frequency Shift Caused by Nonuniform Field and Boundary Relaxation in Magnetic Resonance and Comagnetometers
• Dual-Species Synchronous Spin-Exchange Optical Pumping
• Comparison of Compensation Mechanism Between an NMR Gyroscope and an SERF Gyroscope -- Equivalence of NMR and SERF gyroscopes