Population redistribution in optically trapped polar molecules

Abstract

We investigate the rovibrational population redistribution of polar molecules in the electronic ground state induced by spontaneous emission and blackbody radiation. As a model system we use optically trapped LiCs molecules formed by photoassociation in an ultracold two-species gas. The population dynamics of vibrational and rotational states is modeled using an ab-initio electric dipole moment function and experimental potential energy curves. Comparison with the evolution of the v"=3 electronic ground state yields good qualitative agreement. The analysis provides important input to assess applications of ultracold LiCs molecules in quantum simulation and ultracold chemistry.

6 pages, 5 figures, EPJD Topical issue on Cold Quantum Matter - Achievements and Prospects

References in corpus (8)

• A High Phase-Space-Density Gas of Polar Molecules
• Precision Test of Mass Ratio Variations with Lattice-Confined Ultracold Molecules
• Calculations of static dipole polarizabilities of alkali dimers. Prospects for alignment of ultracold molecules
• Inelastic collisions of ultra-cold heteronuclear molecules in an optical trap
• The X${}^1{\Sigma }^{+}$ and a${}^3{\Sigma }^{+}$ states of LiCs studied by Fourier-transform spectroscopy
• Continuous loading of an electrostatic trap for polar molecules
• Optical pumping of trapped neutral molecules by blackbody radiation
• Precision measurements with polar molecules: the role of the black body radiation

Cited by in corpus (7)

• Universalities in ultracold reactions of alkali polar molecules
• Ultracold hydrogen and deuterium production via Doppler-cooled Feshbach molecules
• Superradiance in spin-$J$ particles: Effects of multiple levels
• Dynamical process of optically trapped singlet ground state ${}^{85}$Rb${}^{133}$Cs molecules produced via short-range photoassociation
• Vibrational spectroscopy of polar molecules with superradiance
• Impact of Decoherence on Internal State Cooling using Optical Frequency Combs
• Formation of deeply bound polar molecules combining pump-dump pulses with infrared radiation