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arXiv · 2412.17276

Comagnetometry using mirror-symmetric ions in a crystal

Bassam Nima·Mingyu Fan·Aleksandar Radak·Andrew M. Jayich·Amar C. Vutha
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Abstract

Searches for physics beyond the Standard Model using spin sensors are susceptible to spurious frequency shifts and noise due to magnetic fields. Therefore a comagnetometer -- an auxiliary sensor that allows mundane magnetic field effects to be differentiated from new physics -- is an essential feature of many precision searches. Here we demonstrate the operation of a novel type of comagnetometer using nuclear spins of dopant ions in a crystal, comparing four different sub-ensembles of ions. We demonstrate rejection of magnetic-field-induced shifts to better than 1 part in 10$^5$ using this system, laying the groundwork for improved searches of time-reversal symmetry violation using solid-state systems.

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Bassam Nima, Mingyu Fan, Aleksandar Radak, Andrew M. Jayich, Amar C. Vutha. 2024-12-23. Comagnetometry using mirror-symmetric ions in a crystal. https://doi.org/10.1103/jykv-rsd1

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