Results 41 to 50 of about 880 (150)
Quantum-State-Controlled Collisions of Ultracold Polyatomic Molecules
Physical Review XCollisions between ultracold calcium monohydroxide (CaOH) molecules are realized and studied. Inelastic collision rate constants are measured for CaOH prepared in ground and excited vibrational states, and the electric field dependence of these rates is ...
Nathaniel B. Vilas +9 more
doaj +1 more source
Überresonant Scattering of Ultracold Molecules
, 2012 Compared to purely atomic collisions, ultracold molecular collisions potentially support a much larger number of Fano-Feshbach resonances due to the enormous number of ro-vibrational states available. In fact, for alkali-metal dimers we find that the resulting density of resonances cannot be resolved at all, even on the sub-$μ$K temperature scale of ...
Mayle, Michael +3 more
openaire +2 more sources
Synthetic dimensions in ultracold polar molecules [PDF]
Scientific Reports, 2018 AbstractSynthetic dimensions alter one of the most fundamental properties in nature, the dimension of space. They allow, for example, a real three-dimensional system to act as effectively four-dimensional. Driven by such possibilities, synthetic dimensions have been engineered in ongoing experiments with ultracold matter. We show that rotational states
Bhuvanesh Sundar +2 more
openaire +3 more sources
An approach to spin-resolved molecular gas microscopy
New Journal of Physics, 2018 Ultracold polar molecules are an ideal platform for studying many-body physics with long-range dipolar interactions. Experiments in this field have progressed enormously, and several groups are pursuing advanced apparatus for manipulation of molecules ...
Jacob P Covey +4 more
doaj +1 more source
Formation of ultracold RbCs molecules by photoassociation [PDF]
Laser Physics, 2012 The formation of ultracold metastable RbCs molecules is observed in a double species magneto-optical trap through photoassociation below the ^85Rb(5S_1/2)+^133Cs(6P_3/2) dissociation limit followed by spontaneous emission. The molecules are detected by resonance enhanced two-photon ionization.
BouloufaMaafa N +3 more
openaire +4 more sources
Probing the limits of optical cycling in a predissociative diatomic molecule
Physical Review Research, 2023 Molecular predissociation, the spontaneous nonradiative bond-breaking process, can limit the ability to scatter a large number of photons required to reach the ultracold regime in laser cooling.
Qi Sun +8 more
doaj +1 more source
Dynamics of ultracold polar molecules in a microwave field
New Journal of Physics, 2015 We analyze the temporal evolution of the population of ultracold polar molecules in a microwave (mw) field with a circular polarization. The molecules are in their ground $^{1}\Sigma $ state and treated as rigid rotors with a permanent dipole moment ...
Alexander V Avdeenkov
doaj +1 more source
Ultracold 88Sr2 molecules in the absolute ground state
New Journal of Physics, 2021 We report efficient all-optical creation of an ultracold gas of alkaline-earth-metal dimers, ^88 Sr _2 , in their absolute ground state. Starting with weakly bound singlet molecules formed by narrow-line photoassociation in an optical lattice, followed ...
K H Leung +5 more
doaj +1 more source
Ultracold Heteronuclear Fermi-Fermi Molecules [PDF]
Physical Review Letters, 2009 5 ...
Voigt, A-C +6 more
openaire +4 more sources
Continuous formation of vibronic ground state RbCs molecules via photoassociation
New Journal of Physics, 2014 We demonstrate the direct formation of vibronic ground state RbCs molecules by photoassociation of ultracold atoms followed by radiative stabilization. The photoassociation proceeds through deeply bound levels of the (2) ^3 Π _0 ^+_+ state. From analysis
C D Bruzewicz +3 more
doaj +1 more source