Quantum Information processing by NMR: Implementation of Inversion-on-equality gate, Parity gate and Fanout gate

Details Quantum Information processing by NMR: Implementation of Inversion-on-equality gate, Parity gate and Fanout gate Quantum Information processing by NMR: Implementation of Inversion-on-equality gate, Parity gate and Fanout gate

2004-04-06

arxiv.org/abs/quant-ph/0404036v1

Physics

Quantum Physics

24 pages, 7 figures

Scientific paper

While quantum information processing by nuclear magnetic resonance (NMR) with small number of qubits is well established, implementation of lengthy computations have proved to be difficult due to decoherence/relaxation. In such circumstances, shallow circuits (circuits using parallel computation) may prove to be realistic. Parity and fanout gates are essential to create shallow circuits. In this article we implement inversion-on-equality gate, followed by parity gate and fanout gate in 3-qubit systems by NMR, using evolution under indirect exchange coupling Hamiltonian.

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