Laser Radiation Pressure Slowing of a Molecular Beam

Barry, John F.; Shuman, E. S.; Norrgard, Eric; DeMille, David

doi:10.1103/physrevlett.108.103002

Cited by 164 publications

(184 citation statements)

References 56 publications

Supporting

Mentioning

178

Contrasting

Unclassified

Order By: Relevance

“…They first demonstrated the technique for SrF. [63][64][65] More recently, Hummon et al 66 have applied the scheme to cool YO while Zhelyazkova et al 67 have demonstrated it for the CaF molecule.…”

Section: A Methods For Creation Of Cold and Ultracold Moleculesmentioning

confidence: 99%

Perspective: Ultracold molecules and the dawn of cold controlled chemistry

Balakrishnan

2016

The Journal of Chemical Physics

282

271

View full text Add to dashboard Cite

Ultracold molecules offer unprecedented opportunities for the controlled interrogation of molecular events, including chemical reactivity in the ultimate quantum regime. The proliferation of methods to create, cool, and confine them has allowed the investigation of a diverse array of molecular systems and chemical reactions at temperatures where only a single partial wave contributes. Here we present a brief account of recent progress on the experimental and theoretical fronts on cold and ultracold molecules and the opportunities and challenges they provide for a fundamental understanding of bimolecular chemical reaction dynamics. Published by AIP Publishing. [http://dx

show abstract

Section: A Methods For Creation Of Cold and Ultracold Moleculesmentioning

confidence: 99%

Perspective: Ultracold molecules and the dawn of cold controlled chemistry

Balakrishnan

2016

The Journal of Chemical Physics

282

271

View full text Add to dashboard Cite

show abstract

“…week ending 29 SEPTEMBER 2017 133002-3 vibrational repumpers, enabling longitudinal slowing [35] and direct magneto-optical trapping [7].…”

Section: H Y S I C a L R E V I E W L E T T E R Smentioning

confidence: 99%

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

2017

View full text Add to dashboard Cite

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 comagnetometer 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. DOI: 10.1103/PhysRevLett.119.133002 Precision measurements of heavy atomic and molecular systems have proven to be a powerful probe of high energy scales in the search for new physics beyond the standard model (BSM) [1]. For example, the limit on the electron's electric dipole moment (EDM), set by the ACME Collaboration using ThO, is sensitive to T-violating BSM physics at the ≳TeV scale [2]. This sensitivity relies on the ability to experimentally access the large effective electromagnetic fields (>10 GV=cm) present in heavy polar molecules by fully polarizing them in the laboratory frame. This makes the experimental challenges of working with such a complex species worth the effort.Despite the success of ACME, a current limitation of that experiment and all present molecular beam experiments is that their coherence time is limited to a few milliseconds by the beam transit time through an apparatus of reasonable size. Since EDM sensitivity scales linearly with coherence time, trapping neutral molecules has the potential to increase sensitivity by many orders of magnitude. Trapped molecular ions have shown great power in EDM searches [3], primarily due to their long coherence time of ∼1 s. Neutral species offer the ability to increase the number of trapped molecules much more easily and essentially without limit compared to ions, while retaining strong robustness against systematic errors. Here we show that laser-cooled and trapped polyatomic molecules offer a combination of features not available in other systems, including long lifetimes, robustness against systematic errors, and scalability, and present a feasible approach to access PeV-scale BSM physics.A very promising route to trapping EDM-sensitive molecules is direct laser cooling and trapping from cryogenic buffer gas beams (CBGBs), which has advanced tremendously in the last few years [4][5][6][7][8][9][10][11]. The molecules that have been cooled so far posses an electronic structure that makes them amenable to laser cooling, but also precludes the existence of Ω doublets, such as the 3 Δ 1 molecular state used in the two most sensitive electron EDM measurements [2,3]. These doublets enable full po...

show abstract

“…Molecules in the low velocity tail of such a buffer gas beam can be selected (26,27), trapped (28,29) and cooled (30). Recently, buffer-gascooled beams of a few molecular species have been slowed to low velocity using radiation pressure (31)(32)(33)(34)(35), and CONTACT S. Truppe s.truppe09@imperial.ac.uk The underlying research materials for this article can be accessed at Zenodo (https://doi.org/10.5281/zenodo.995663) and may be used under the Creative Commons CCZero license. these slow molecules have been captured and cooled to low temperatures in magneto-optical traps (36)(37)(38).…”

Section: Introductionmentioning

confidence: 99%