A double-resonance spectrum of warm 87Rb, decoded by a 1D convolutional neural network, yields the orientation and magnitude of a ~50 µT external field with about 1.5 degrees angular error and 115 nT field stability.
In the experimental configuration used in this work, the optical field is left-circularly polarized and travelling down the ˆy-axis
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Microwave-optical double-resonance vector magnetometry with warm Rb atoms
A double-resonance spectrum of warm 87Rb, decoded by a 1D convolutional neural network, yields the orientation and magnitude of a ~50 µT external field with about 1.5 degrees angular error and 115 nT field stability.