Deterministic entanglement of ions in thermal states of motion

Details Deterministic entanglement of ions in thermal states of motion Deterministic entanglement of ions in thermal states of motion

2008-10-03

arxiv.org/abs/0810.0670v2

New. J. Phys. 11, 023002 (2009)

Physics

Quantum Physics

18 pages, 9 figures (author name spelling corrected)

Scientific paper

10.1088/1367-2630/11/2/023002

We give a detailed description of the implementation of a Molmer-Sorensen gate entangling two Ca+ ions using a bichromatic laser beam near-resonant with a quadrupole transition. By amplitude pulse shaping and compensation of AC-Stark shifts we achieve a fast gate operation without compromising the error rate. Subjecting different input states to concatenations of up to 21 individual gate operations reveals Bell state fidelities above 0.80. In principle, the entangling gate does not require ground state cooling of the ions as long as the Lamb-Dicke criterion is fulfilled. We present the first experimental evidence for this claim and create Bell states with a fidelity of 0.974(1) for ions in a thermal state of motion with a mean phonon number of =20(2) in the mode coupling to the ions' internal states.

Affiliated with

Also associated with

No associations

Rating

Deterministic entanglement of ions in thermal states of motion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Deterministic entanglement of ions in thermal states of motion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deterministic entanglement of ions in thermal states of motion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-410059