A High Phase-Space-Density Gas of Polar Molecules
National Institute of Standards and Technology · Joint Institute for Laboratory Astrophysics · +2 more institutions
Abstract
A quantum gas of ultracold polar molecules, with long-range and anisotropic interactions, not only would enable explorations of a large class of many-body physics phenomena but also could be used for quantum information processing. We report on the creation of an ultracold dense gas of potassium-rubidium (40K87Rb) polar molecules. Using a single step of STIRAP (stimulated Raman adiabatic passage) with two-frequency laser irradiation, we coherently transfer extremely weakly bound KRb molecules to the rovibrational ground state of either the triplet or the singlet electronic ground molecular potential. The polar molecular gas has a peak density of 10(12) per cubic centimeter and an expansion-determined…
Citation impact
- FWCI
- 112.08
- Percentile
- 100%
- References
- 37
Authors
10- KNKang-Kuen NiCorresponding
National Institute of Standards and Technology, Joint Institute for Laboratory Astrophysics, Joint Quantum Institute, Temple University
- SOSilke OspelkausCorresponding
National Institute of Standards and Technology, Joint Institute for Laboratory Astrophysics, Joint Quantum Institute, Temple University
- MHM. H. G. de Miranda
National Institute of Standards and Technology, Joint Institute for Laboratory Astrophysics, Joint Quantum Institute, Temple University
- APAsaf Pe’er
National Institute of Standards and Technology, Joint Institute for Laboratory Astrophysics, Joint Quantum Institute, Temple University
- BNBrian Neyenhuis
National Institute of Standards and Technology, Joint Institute for Laboratory Astrophysics, Joint Quantum Institute, Temple University
Topics & keywords
- Polar
- Gas phase
- Space (punctuation)
- Chemical physics
- Chemical polarity
- Molecule
- Phase (matter)
- Astrobiology