Results 11 to 20 of about 2,536 (203)
Molecule–molecule and atom–molecule collisions with ultracold RbCs molecules [PDF]
New Journal of Physics, 2021 Abstract Understanding ultracold collisions involving molecules is of fundamental importance for current experiments, where inelastic collisions typically limit the lifetime of molecular ensembles in optical traps. Here we present a broad study of optically trapped ultracold RbCs molecules in collisions with one another, in reactive ...
Philip D Gregory +6 more
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Ultracold polar molecules as qudits
New Journal of Physics, 2020 Abstract We discuss how the internal structure of ultracold molecules, trapped in the motional ground state of optical tweezers, can be used to implement qudits. We explore the rotational, fine and hyperfine structure of 40Ca19F and 87Rb133Cs, which are examples of molecules with 2Σ and 1Σ electronic ground states, respectively.
Rahul Sawant +8 more
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Ultracold molecule assembly with photonic crystals
New Journal of Physics, 2017 Photoassociation (PA) is a powerful technique to synthesize molecules directly and continuously from cold and ultracold atoms into deeply bound molecular states. In freespace, however, PA efficiency is constrained by the number of spontaneous decay channels linking the initial excited molecular state to a sea of final (meta)stable rovibronic levels ...
Jesús Pérez-Ríos +2 more
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Ultracold collisions of polyatomic molecules: CaOH
New Journal of Physics, 2019 Abstract Ultracold collisions of the polyatomic species CaOH are considered, in internal states where the collisions should be dominated by long-range dipole–dipole interactions. The computed rate constants suggest that evaporative cooling can be quite efficient for these species, provided they start at temperatures achievable by laser ...
Lucie D Augustovičová, John L Bohn
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Formation of ultracold NaRb Feshbach molecules
New Journal of Physics, 2015 We report the creation of ultracold bosonic $^{23}$Na$^{87}$Rb Feshbach molecules via magneto-association. By ramping the magnetic field across an interspecies Feshbach resonance, at least 4000 molecules can be produced out of the near degenerate ultracold mixture.
Fudong Wang +5 more
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Cavity-controlled formation of ultracold molecules
New Journal of Physics, 2018 Ultracold ground-state molecules can be formed from ultracold atoms via photoassociation followed by a spontaneous emission process. Typically, the molecular products are distributed over a range of final states. Here, we propose to use an optical cavity
Hecker Denschlag, Johannes +1 more
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Measurement of the variation of electron-to-proton mass ratio using ultracold molecules produced from laser-cooled atoms. [PDF]
Nat Commun, 2019 Ultracold molecules are suitable platforms for precision measurements due to their internal degrees of freedom. Here the authors derive a limit on the variation of the electron-to-proton mass ratio by using the spectroscopy of ultracold KRb molecules.
Kobayashi J, Ogino A, Inouye S.
europepmc +2 more sources
Two- and many-body physics of ultracold molecules dressed by dual microwave fields. [PDF]
Nat CommunWe investigate the two- and many-body physics of ultracold polar molecules dressed by dual microwaves with distinct polarizations. Using Floquet theory and multichannel scattering calculations, we identify a regime with the largest elastic-to-inelastic ...
Deng F, Hu X, Jin WJ, Yi S, Shi T.
europepmc +2 more sources
A conveyor-belt magneto-optical trap of CaF. [PDF]
Nat CommunAchieving high-density samples of laser-cooled molecules is a critical step toward advancing applications in precision measurements, ultracold chemistry and quantum science.
Yu SS +10 more
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Observation of microwave shielding of ultracold molecules [PDF]
Science, 2021 Shielding ultracold molecules Ultracold molecules hold promise for a wide range of exciting applications. However, such applications are currently hampered by the limited number of ultracold molecular ensembles that can be created and by their short lifetimes. Anderegg et al .
Loïc Anderegg +8 more
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