Cooling and trapping polar molecules in an electrostatic trap

An electrostatic trap for polar molecules is proposed. Loading and trapping of polar molecules can be realized by applying different voltages to the two electrodes of the trap. For ND3 molecular beams centered at ~10 m/s, a high loading efficiency of ~67% can be obtained, as confirmed by our Monte Carlo simulations. The volume of our trap is as large as ~3.6 cm3, suitable for study of the adiabatic cooling of trapped molecules. Our simulations indicate that trapped ND3 molecules can be cooled from ~23.3 mK to 1.47 mK by reducing the trapping voltages on the electrodes from 50.0 kV to 1.00 kV.

[1]  Jianping Yin,et al.  Adiabatic cooling for cold polar molecules on a chip using a controllable high-efficiency electrostatic surface trap , 2014 .

[2]  Jianping Yin,et al.  Electrostatic surface trap for cold polar molecules on a chip , 2014 .

[3]  Jianping Yin,et al.  Optically accessible electrostatic trap for cold polar molecules , 2013 .

[4]  G. Rempe,et al.  Storage and adiabatic cooling of polar molecules in a microstructured trap. , 2011, Physical review letters.

[5]  S. Willitsch,et al.  Cold Reactive Collisions between laser-cooled ions and velocity-selected neutral molecules. , 2008, Physical review letters.

[6]  Yin Jian-ping,et al.  Novel electrostatic trap for cold polar molecules , 2007 .

[7]  G. Groenenboom,et al.  The radiative lifetime of metastable CO (a 3Pi, v=0). , 2007, The Journal of chemical physics.

[8]  Yin Jian-ping,et al.  Electrostatic Surface Trap for Cold Polar Molecules with a Charged Circular Wire , 2007 .

[9]  G. Meijer,et al.  Versatile electrostatic trap , 2006, physics/0603006.

[10]  Jun Ye,et al.  Cold molecule spectroscopy for constraining the evolution of the fine structure constant. , 2006, Physical review letters.

[11]  G. Rempe,et al.  Continuous loading of an electrostatic trap for polar molecules. , 2005, Physical review letters.

[12]  R. Jongma,et al.  Deceleration and electrostatic trapping of OH radicals. , 2004, Physical review letters.

[13]  G. Meijer,et al.  Decelerated molecular beams for high-resolution spectroscopy , 2004 .

[14]  Carl J. Williams,et al.  Quantum encounters of the cold kind , 2002, Nature.

[15]  D. DeMille.  Quantum computation with trapped polar molecules. , 2001, Physical review letters.

[16]  J. Bohn.  Inelastic collisions of ultracold polar molecules , 2000, physics/0008017.

[17]  G. Berden,et al.  Electrostatic trapping of ammonia molecules , 2000, Nature.