Precision Measurement of Time-Reversal Symmetry Violation with Laser-Cooled Polyatomic Molecules

Abstract

Precision searches for time-reversal symmetry violating interactions in polar molecules are extremely sensitive probes of high energy physics beyond the Standard Model. To extend the reach of these probes into the PeV regime, long coherence times and large count rates are necessary. Recent advances in laser cooling of polar molecules offer one important tool -- optical trapping. However, the types of molecules that have been laser-cooled so far do not have the highly desirable combination of features for new physics searches, such as the ability to fully polarize and the existence of internal co-magnetometer states. We show that by utilizing the internal degrees of freedom present only in molecules with at least three atoms, these features can be attained simultaneously with molecules that have simple structure and are amenable to laser cooling and trapping.

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Cited by in corpus (148)

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• Observation and laser spectroscopy of ytterbium monomethoxide, YbOCH${}_3$
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• High-resolution 'magic'-field spectroscopy on trapped polyatomic molecules
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