Realization of the Quantum Toffoli Gate with Trapped Ions

Journal Article · Thu Jan 29 23:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.040501· OSTI ID:21180153

Monz, T; Kim, K; Haensel, W; Riebe, M; Schindler, P; Chwalla, M; Hennrich, M ^[1]; Villar, A S; Blatt, R ^[1]

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1. Institut fuer Experimentalphysik, Universitaet Innsbruck, Technikerstrasse 25, A-6020 Innsbruck (Austria)

Gates acting on more than two qubits are appealing as they can substitute complex sequences of two-qubit gates, thus promising faster execution and higher fidelity. One important multiqubit operation is the quantum Toffoli gate that performs a controlled NOT operation on a target qubit depending on the state of two control qubits. Here we present the first experimental realization of the quantum Toffoli gate in an ion trap quantum computer, achieving a mean gate fidelity of 71(3)%. Our implementation is particularly efficient as the relevant logic information is directly encoded in the motion of the ion string.

• OSTI ID: 21180153
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONTROL THEORY
DATA PROCESSING
IONS
QUANTUM COMPUTERS
QUANTUM MECHANICS
QUBITS
TRAPPING