Loss of molecules in magneto-electrostatic traps due to nonadiabatic transitions

Abstract

We analyze the dynamics of a paramagnetic, dipolar molecule in a generic "magneto-electrostatic'' trap where both magnetic and electric fields may be present. The potential energy that governs the dynamics of the molecules is found using a reduced molecular model that incorporates the main features of the system. We discuss the shape of the trapping potentials for different field geometries, as well as the possibility of nonadiabatic transitions to untrapped states, i.e., the analog of Majorana transitions in a quadrupole magnetic atomic trap. Maximizing the lifetime of molecules in a trap is of great concern in current experiments, and we assess the effect of nonadiabatic transitions on obtainable trap lifetimes.

13 pages, 6 figures

References in corpus (10)

• Quo vadis, cold molecules? - Editorial review
• Magneto-electrostatic trapping of ground state OH molecules
• Magnetic trapping and Zeeman relaxation of imidogen (NH X-triplet-Sigma)
• Continuous loading of an electrostatic trap for polar molecules
• Optical pumping of trapped neutral molecules by blackbody radiation
• Prospects for the cavity-assisted laser cooling of molecules
• Ultracold atom-molecule collisions and bound states in magnetic fields: tuning zero-energy Feshbach resonances in He-NH (3Sigma-)
• Electrostatic trapping of metastable NH molecules
• Mitigation of loss within a molecular Stark decelerator
• Majorana spin-flip transitions in a magnetic trap

Cited by in corpus (3)

• Nonadiabatic transitions in electrostatically trapped ammonia molecules
• Controlling Spin-flips of Molecules in an Electromagnetic Trap
• Electronic structure of ultralong-range Rydberg pentaatomic molecules with two polar diatomic molecules