Demonstration of a Neutral Atom Controlled-NOT Quantum Gate
Abstract
We present the first demonstration of a CNOT gate between two individually addressed neutral atoms. Our implementation of the CNOT uses Rydberg blockade interactions between neutral atoms held in optical traps separated by >8μm. Using two different gate protocols we measure CNOT fidelities of F=0.73 and 0.72 based on truth table probabilities. The gate was used to generate Bell states with fidelity F=0.48±0.06. After correcting for atom loss we obtain an a posteriori entanglement fidelity of F=0.58.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 2010
- DOI:
- arXiv:
- arXiv:0907.5552
- Bibcode:
- 2010PhRvL.104a0503I
- Keywords:
-
- 03.67.Lx;
- 03.67.Bg;
- 32.80.Ee;
- 32.80.Qk;
- Quantum computation;
- Entanglement production and manipulation;
- Rydberg states;
- Coherent control of atomic interactions with photons;
- Quantum Physics
- E-Print:
- text revised, with additional references