Driving the formation of the RbCs dimer by a laser pulse. A nonlinear dynamics approach

Abstract

We study the formation of the RbCs molecule by an intense laser pulse using nonlinear dynamics. Under the Born-Oppenheimer approximation, the system is modeled by a two degree of freedom rovibrational Hamiltonian, which includes the ground electronic potential energy curve of the diatomic molecule and the interaction of the molecular polarizability with the electric field of the laser. As the laser intensity increases, we observe that the formation probability first increases and then decreases after reaching a maximum. We show that the analysis can be simplified to the investigation of the long-range interaction between the two atoms. We conclude that the formation is due to a very small change in the radial momentum of the dimer induced by the laser pulse. From this observation, we build a reduced one dimensional model which allows us to derive an approximate expression of the formation probability as a function of the laser intensity.

References in corpus (19)

• A High Phase-Space-Density Gas of Polar Molecules
• Cold and Ultracold Molecules: Science, Technology, and Applications
• Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
• Quantum Gas of Deeply Bound Ground State Molecules
• Quantum gas of rovibronic ground-state molecules in an optical lattice
• Reactions of ultracold alkali metal dimers
• Production of Ultracold, Polar RbCs* Molecules via Photoassociation
• Towards the production of ultracold ground-state RbCs molecules: Feshbach resonances, weakly bound states, and coupled-channel model
• Calculations of static dipole polarizabilities of alkali dimers. Prospects for alignment of ultracold molecules
• Ultrastable CO2 Laser Trapping of Lithium Fermions
• Formation of ultracold LiCs molecules
• Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules
• Production of optically trapped ${}^{87}$RbCs Feshbach molecules
• The Hydrogen Atom in Combined Electric and Magnetic Fields with Arbitrary Mutual Orientations
• Strongly driven quantum pendulum of the OCS molecule
• Periodic Orbit Quantization of Mixed Regular Chaotic Systems
• Nonlinear dynamics of ionization stabilization of atoms in intense laser fields
• Bifurcations as dissociation mechanism in bichromatically driven diatomic molecules
• Quantum-classical model for the formation of Rydberg molecules

Cited by in corpus (2)

• Formation of RbCs dimers using an elliptically polarized laser pulse
• Nonlinear dynamics of molecular superrotors