Suppression of nonadiabatic losses of molecules from chip-based microtraps
@article{Meek2011SuppressionON, title={Suppression of nonadiabatic losses of molecules from chip-based microtraps}, author={Samuel A. Meek and Gabriele Santambrogio and Boris G. Sartakov and Horst Dr Conrad and Gerard Meijer}, journal={Physical Review A}, year={2011}, volume={83}, pages={033413} }
Polar molecules in selected quantum states can be guided, decelerated, and trapped using electric fields created by microstructured electrodes on a chip. Here we explore how nonadiabatic transitions between levels in which the molecules are trapped and levels in which the molecules are not trapped can be suppressed. We use {sup 12}CO and {sup 13}CO (a {sup 3{Pi}}{sub 1},v=0) molecules, prepared in the upper {Lambda}-doublet component of the J=1 rotational level, and study the trap loss as a…
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References
SHOWING 1-10 OF 35 REFERENCES
Nonadiabatic transitions in electrostatically trapped ammonia molecules
- Physics, Chemistry
- 2009
Nonadiabatic transitions are known to be major loss channels for atoms in magnetic traps but have thus far not been experimentally reported upon for trapped molecules. We have observed and quantified…
Nonadiabatic transitions in a Stark decelerator
- Physics
- 2010
In a Stark decelerator, polar molecules are slowed down and focused by an inhomogeneous electric field which switches between two configurations. For the decelerator to work, it is essential that the…
Magnetic microtraps for ultracold atoms
- Physics
- 2007
Trapping and manipulating ultracold atoms and degenerate quantum gases in magnetic micropotentials is reviewed. Starting with a comprehensive description of the basic concepts and fabrication…
A Stark decelerator on a chip
- Physics, Chemistry
- 2009
A microstructured array of 1254 electrodes on a substrate has been configured to generate an array of local minima of electric field strength with a periodicity of 120µm about 25µm above the…
Trapping Molecules on a Chip
- Chemistry, PhysicsScience
- 2009
A step toward miniaturization in this latter regime is taken by demonstrating the isolation of a cold gas-phase beam of CO molecules just above a microelectrode-decorated chip using direct loading from a supersonic beam.
Submillimeter-Wave Spectroscopy of CO in the a3Π State
- Physics
- 2000
Abstract Submillimeter-wave absorption spectrum of CO in electronically excited a 3 Π state was observed in the 540–830 GHz region by using a phase-locked BWO spectrometer. New rotational transitions…
Trapping molecules on a chip in traveling potential wells.
- PhysicsPhysical review letters
- 2008
A microstructured array of over 1200 electrodes on a substrate has been configured to generate an array of local minima of electric field strength with a periodicity of 120 microm about 25 microm…
The microwave spectrum of CO in the a 3Π state. II. The submillimeter wave transitions in the normal isotope
- Physics
- 1988
Precise measurements of the frequencies of a number of new rotational transitions of a 3Π CO (v=0–4) in the range 250–500 GHz are reported. In addition earlier measurements of the J=0–1 frequencies…
Fine Structure, Dipole Moment, and Perturbation Analysis of a 3Π CO
- Physics
- 1972
Theedio‐frequency spectrum of the a 3Π state of carbon monoxide from 5 to 1000 MHz has been measured in a molecular beam electric resonance spectrometer. Lambda doubling transitions in Ω=2, J=2–8,…
Metastable a 3Π 13CO: Molecular‐Beam Electric‐Resonance Measurements of the Fine Structure, Hyperfine Structure, and Dipole Moment
- Physics
- 1971
The radio‐frequency spectrum of metastable a 3Π 13CO has been measured in molecular‐beam electric resonance in the range 0–2000 MHz. Electric‐dipole transitions with ΔJ = 0 and ΔF = 0, ± 1 have been…