ac Electric Trap for Ground-State Molecules

An AC electric trap for ground-state molecules

A linear AC trap for polar molecules in their ground state.

A linear AC trap for polar molecules in high-field seeking states has been devised and implemented, and its characteristics have been investigated both experimentally and theoretically. The trap is loaded with slow 15ND3 molecules in their ground state (para-ammonia) from a Stark decelerator. The trap's geometry offers optimal access as well as improved loading. We present measurements of the d...

Trapping polar molecules in an ac trap

Polar molecules in high-field seeking states cannot be trapped in static traps as Maxwell’s equations do not allow a maximum of the electric field in free space. It is possible to generate an electric field that has a saddle point by superposing an inhomogeneous electric field to an homogeneous electric field. In such a field, molecules are focused along one direction, while being defocused alo...

Rb atoms in a blue-detuned dipole trap: Coherence and ground-state differential ac Stark shift

Blue-detuned dipole traps and their ability to preserve atomic coherences are interesting for precision measurement applications. In this paper, we present experimental studies on the differential ac Stark shift of the ground-state hyperfine splitting in 87Rb atoms confined in a dynamic blue-detuned dipole trap. We systematically study the power and detuning effects on the Rabi resonance freque...

An electron electric dipole moment search in the X"1 ground state of tungsten carbide molecules

An electron electric dipole moment search in the X"1 ground state of tungsten carbide molecules J. Lee, E.R. Meyer, R. Paudel, J.L. Bohn and A.E. Leanhardt* Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA; JILA, NIST and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA; Department of Physics, Wabash College, Crawfordsville, Indi...