Laser-Cooled Polyatomic Molecules for Improved Electron Electric Dipole Moment Searches

Abstract

Doppler and Sisyphus cooling of ${}^{174}$YbOH 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 $<600\mu$K 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 (EDM) 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.

9 pages, 4 figures

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• Theoretical study of ${}^{173}$YbOH to search for the nuclear magnetic quadrupole moment
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• On-Demand Entanglement of Molecules in a Reconfigurable Optical Tweezer Array
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• Sub-Doppler Cooling and Compressed Trapping of YO Molecules at $\mu$K Temperatures
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• Opportunities for Fundamental Physics Research with Radioactive Molecules
• Enhanced Yield from a Cryogenic Buffer Gas Beam Source via Excited State Chemistry
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• Quantum control of molecules for fundamental physics
• Functionalizing Aromatic Compounds with Optical Cycling Centers
• Direct laser cooling of calcium monohydride molecules
• Accurate prediction and measurement of vibronic branching ratios for laser cooling linear polyatomic molecules
• Prospects for laser cooling of polyatomic molecules with increasing complexity
• Optical Mass Spectrometry of Cold ${\mathrm{RaOH}}^{+}$ and ${{\mathrm{RaOCH}}_3}^{+}$
• Franck-Condon tuning of optical cycling centers by organic functionalization
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• Magnetic Feshbach resonances in collisions of ${}^{23}$Na${}^{40}$K with ${}^{40}$K
• Establishing a nearly closed cycling transition in a polyatomic molecule
• Three-dimensional Magneto-optical Trapping of Barium Monofluoride
• Observation and laser spectroscopy of ytterbium monomethoxide, YbOCH${}_3$
• Optical Trapping of a Polyatomic Molecule in an $\ell$-Type Parity Doublet State
• A laser cooling scheme for precision measurements using barium monofluoride (137Ba19F) molecules
• New techniques for a measurement of the electron's electric dipole moment
• Fine and hyperfine interactions in ${}^{171}$YbOH and ${}^{173}$YbOH
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• Characterizing the Fundamental Bending Vibration of a Linear Polyatomic Molecule for Symmetry Violation Searches
• Calculations of Time-Reversal Symmetry Violation Sensitivity Parameters Based on Analytic Relativistic Coupled-Cluster Gradient Theory
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• Laser-coolable AcOH${}^{+}$ ion for $\mathcal{C}\mathcal{P}$-violation searches
• Rovibrational structure of the Ytterbium monohydroxide molecule and the $\mathcal{P}$,$\mathcal{T}$-violation searches
• Inner-shell excitation in the YbF molecule and its impact on laser cooling
• Saturated absorption spectroscopy of buffer-gas-cooled Barium monofluoride molecules
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• Optical cycling in polyatomic molecules with complex hyperfine structure
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• Fully saturated hydrocarbons as hosts of optical cycling centers
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• Rotating and vibrating symmetric top molecule RaOCH${}_3$ in the fundamental $\mathcal{P}$, $\mathcal{T}$-violation searches
• Sympathetic cooling and slowing of molecules with Rydberg atoms
• Multivalent optical cycling centers in polyatomic molecules
• Fast and High-Yield Loading of a D${}_2$ MOT of Potassium from a Cryogenic Buffer Gas Beam
• Vibrational Branching Ratios for Laser-Cooling of Nonlinear Strontium-Containing Molecules
• Impact of the ligand deformation on the $\mathcal{P}$,$\mathcal{T}$-violation effects in the YbOH molecule
• Static electric dipole moment of the francium atom induced by axionlike particle exchange
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• Maximizing the capture velocity of molecular magneto-optical traps with Bayesian optimization
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