NASA NTRS · 20040111374
Probing Planck-Scale physics with a Ne-21/He-3 Zeeman maser
Abstract
We completed a search for a sidereal annual variation in the frequency difference between co-located Xe-129 and He-3 Zeeman masers. This search sets a stringent limit of approximately 10(exp -27) GeV on boost-dependent Lorentz and CPT violation involving the neutron. A paper reporting this result has been accepted for publication in Physical Review Letters. We also completed detailed modeling and design of the next-generation dual-noble-gas Zeeman maser for an improved test of Lorentz and CPT violation, and begin construction of this device.
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Walsworth, Ronald L., Phillips, David. 2004-09-01. Probing Planck-Scale physics with a Ne-21/He-3 Zeeman maser. https://ntrs.nasa.gov/citations/20040111374
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