Feedback cooling of a single trapped ion.

Authors :: Bushev P
Rotter D
Wilson A
Dubin F
Becher C
Eschner J
Blatt R
Steixner V
Rabl P
Zoller P
Source :: Physical review letters [Phys Rev Lett] 2006 Feb 03; Vol. 96 (4), pp. 043003. Date of Electronic Publication: 2006 Feb 03.
Publication Year :: 2006
Abstract: Based on a real-time measurement of the motion of a single ion in a Paul trap, we demonstrate its electromechanical cooling below the Doppler limit by homodyne feedback control (cold damping). The feedback cooling results are well described by a model based on a quantum mechanical master equation.