Abstract
Doppler and Sisyphus cooling of 174YbOH are achieved and studied. This polyatomic molecule has high sensitivity to physics beyond the Standard Model and represents a new class of species for future high-precision probes of new T-violating physics. The transverse temperature of the YbOH beam is reduced by nearly two orders of magnitude to < 600 μK and the phase-space density is increased by a factor of > 6 via Sisyphus cooling. We develop a full numerical model of the laser cooling of YbOH and find excellent agreement with the data. We project that laser cooling and magneto-optical trapping of long-lived samples of YbOH molecules are within reach and these will allow a high sensitivity probe of the electric dipole moment of the electron. The approach demonstrated here is easily generalized to other isotopologues of YbOH that have enhanced sensitivity to other symmetry-violating electromagnetic moments.
Original language | English (US) |
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Article number | 022003 |
Journal | New Journal of Physics |
Volume | 22 |
Issue number | 2 |
DOIs | |
State | Published - 2020 |
Keywords
- electron electric dipole moment
- laser cooling
- molecular laser cooling
- precision measurements
- ultracold molecules
ASJC Scopus subject areas
- General Physics and Astronomy