High-fidelity universal quantum gates through quantum interference

Ran Li; Frank Gaitan

doi:10.1117/12.851211

16 April 2010 High-fidelity universal quantum gates through quantum interference

Ran Li, Frank Gaitan

Proceedings Volume 7702, Quantum Information and Computation VIII; 77020U (2010) https://doi.org/10.1117/12.851211
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Numerical simulation results are presented which suggest that a class of non-adiabatic rapid passage sweeps first realized experimentally in 1991, and which give rise to controllable quantum interference effects observed using NMR in 2003, should be capable of implementing a universal set of quantum gates G_u that operate with high-fidelity. G_u consists of the Hadamard and NOT gates, together with variants of the phase, π/8, and controlled-phase gates. Sweep parameter values are provided which simulations indicate will produce the different gates in G_u, and for each gate, yield an operation with error probability P_e < 10^-4. The simulations suggest that the universal gate set produced by these rapid passage sweeps show promise as possible elements of a fault-tolerant scheme for quantum computing.

Citation Download Citation

Ran Li and Frank Gaitan "High-fidelity universal quantum gates through quantum interference", Proc. SPIE 7702, Quantum Information and Computation VIII, 77020U (16 April 2010); https://doi.org/10.1117/12.851211

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