Self-calibrating vector atomic magnetometry through microwave polarization reconstruction

Abstract

Atomic magnetometry is one of the most sensitive ways to measure magnetic fields. We present a method for converting a naturally scalar atomic magnetometer into a vector magnetometer by exploiting the polarization dependence of hyperfine transitions in rubidium atoms. First, we fully determine the polarization ellipse of an applied microwave field using a self-calibrating method, i.e. a method in which the light-atom interaction provides everything required to know the field in an orthogonal laboratory frame. We then measure the direction of an applied static field using the polarization ellipse as a three-dimensional reference defined by Maxwell's equations. Although demonstrated with trapped atoms, this technique could be applied to atomic vapors, or a variety of atom-like systems.

arXiv comment5 pages, 3 figures + supplementary 11 pages, 5 figure

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Cited by in corpus (11)

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• Optimal Generators for Quantum Sensing
• Pulsed Vector Atomic Magnetometer Using an Alternating Fast-Rotating Field
• Correcting heading errors in optically pumped magnetometers through microwave interrogation
• Accurate vector optically pumped magnetometer with microwave-driven Rabi frequency measurements
• Investigating the hyperfine systematic error and relative phase in low spin-polarization alkali FID magnetometers
• Encoding quantum bits in bound electronic states of a graphene nanotorus
• Optimizing Population Accumulation in Quantum States Using Microwave Spectroscopy
• Multiparameter quantum metrology using strongly interacting spin systems