Laser Cooled YbF Molecules for Measuring the Electron's Electric Dipole Moment

Laser Cooled YbF Molecules for Measuring the Electron's Electric Dipole Moment

We demonstrate one-dimensional sub-Doppler laser cooling of a beam of YbF molecules to 100  μK. This is a key step towards a measurement of the electron's electric dipole moment using ultracold molecules. We compare the effectiveness of magnetically assisted and polarization-gradient sub-Dopple...

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Veröffentlicht in:Physical review letters 2018-03, Vol.120 (12), p.123201-123201, Article 123201
Hauptverfasser: Lim, J, Almond, J R, Trigatzis, M A, Devlin, J A, Fitch, N J, Sauer, B E, Tarbutt, M R, Hinds, E A
Format: Artikel
Sprache:eng
Schlagworte:
Cooling
Cooling effects
Dipole moments
Electric dipoles
Laser beams
Laser cooling
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Zusammenfassung:We demonstrate one-dimensional sub-Doppler laser cooling of a beam of YbF molecules to 100  μK. This is a key step towards a measurement of the electron's electric dipole moment using ultracold molecules. We compare the effectiveness of magnetically assisted and polarization-gradient sub-Doppler cooling mechanisms. We model the experiment and find good agreement with our data.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.120.123201