Sympathetic cooling of molecular ion motion to the ground state

We demonstrate sympathetic sideband cooling of a 40CaH+ molecular ion co-trapped with a 40Ca+ atomic ion in a linear Paul trap. Both axial modes of the two-ion chain are simultaneously cooled to near the ground state of motion. The center of mass mode is cooled to an average quanta of harmonic motio...

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Bibliographic Details
Published in:New journal of physics 2015-03, Vol.17 (3), p.35009
Main Authors: Rugango, R, Goeders, J E, Dixon, T H, Gray, J M, Khanyile, N B, Shu, G, Clark, R J, Brown, K R
Format: Article
Language:English
Subjects:
Axial modes
Breathing
Calcium isotopes
Center of mass
Chains
Cooling
Ground state
ground state cooling
Harmonic motion
Ion motion
laser cooling
Molecular ions
Physics
Sidebands
sympathetic cooling
ultracold molecules
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Summary:We demonstrate sympathetic sideband cooling of a 40CaH+ molecular ion co-trapped with a 40Ca+ atomic ion in a linear Paul trap. Both axial modes of the two-ion chain are simultaneously cooled to near the ground state of motion. The center of mass mode is cooled to an average quanta of harmonic motion , corresponding to a temperature of . The breathing mode is cooled to , corresponding to a temperature of .
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/17/3/035009