Demonstration of a Neutral Atom Controlled-NOT Quantum Gate

Journal Article · Fri Jan 08 00:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.104.010503· OSTI ID:21386879

Isenhower, L; Urban, E; Zhang, X L; Gill, A T; Henage, T; Johnson, T A; Walker, T G; Saffman, M ^[1]

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1. Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, Wisconsin 53706 (United States)

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 >8 {mu}m. 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.

• OSTI ID: 21386879
• Journal Information: Physical Review Letters, Vol. 104, Issue 1; Other Information: DOI: 10.1103/PhysRevLett.104.010503; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
INTERACTIONS
MATHEMATICAL LOGIC
PARTICLE LOSSES
PROBABILITY
QUANTUM COMPUTERS
QUANTUM ENTANGLEMENT
RYDBERG EQUATION
COMPUTERS
EQUATIONS
LOSSES