Storage and Adiabatic Cooling of Polar Molecules in a Microstructured Trap

Details Storage and Adiabatic Cooling of Polar Molecules in a Microstructured Trap Storage and Adiabatic Cooling of Polar Molecules in a Microstructured Trap

2011-07-14

arxiv.org/abs/1107.2821v1

Physics

Quantum Physics

Scientific paper

We demonstrate loading, trapping and adiabatic cooling of polar molecules in a new type of electric trap. The trap consists of two microstructured capacitor plates with an additional perimeter electrode, allowing for homogeneous fields in the trap volume and steep fields at the trap boundary. CH3F molecules are trapped up to 60 seconds, with a 1/e storage time of 12 seconds. Applying different electric fields in two halves of the trap, adiabatic cooling is achieved by slowly expanding the trap volume. The trap is ideally suited for precision studies of ultracold molecular collisions and spectroscopy. Moreover, it combines all ingredients for the recently proposed opto-electrical molecular cooling scheme [M. Zeppenfeld et al., Phys. Rev. A 80, 041401(R) (2009)].

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