@article{071b11f226cb4c66a5e4aaa721d2ec87,
title = "Frequency shifts in noble-gas comagnetometers",
abstract = "Polarized nuclei are a powerful tool in nuclear-spin studies and in the search for physics beyond the standard model. Systems which compare two nuclear species have thus far been limited by anomalous yet reproducible frequency variations of unknown origin. We studied the self-interactions in a He3-Xe129 system by independently addressing, controlling, and measuring the influence of each component of the nuclear-spin polarization. Our results directly rule out prior explanations of the shifts and demonstrate experimentally that they can be explained by species-dependent self-interactions. We also report a gas-phase frequency shift induced by Xe129 on He3.",
author = "Terrano, {W. A.} and J. Meinel and N. Sachdeva and Chupp, {T. E.} and S. Degenkolb and P. Fierlinger and F. Kuchler and Singh, {J. T.}",
note = "Funding Information: The authors thank F. R{\"o}hrer and M. Weidenthaler for help with gathering the data. We would also like to thank PTB-Berlin for lending us a SQUID system and lots of help in getting our comagnetometer running. In particular, we thank J. Voigt for helping us keep the SQUID operational, W. Kilian for helping us set up our polarizer, and L. Trahms and S. Knappe-Gr{\"u}neberg for helpful discussions of magnetometry. We also want to thank E. Babcock for help on the polarizer and the Lurie Nanofabrication Facility for help producing our cells. This work was supported by the DFG Cluster of Excellence “Origin and Structure of the Universe” and Michigan State University. W.A.T. would like to thank the A Von Humboldt Foundation for financial support. Publisher Copyright: {\textcopyright} 2019 American Physical Society.",
year = "2019",
month = jul,
day = "3",
doi = "10.1103/PhysRevA.100.012502",
language = "English (US)",
volume = "100",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "1",
}