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arXiv · 0806.0753

Quantum computation in decoherence-free subspace with superconducting devices

Zheng-Yuan Xue·Shi-Liang Zhu·Z. D. Wang
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Abstract

We propose a scheme to implement quantum computation in decoherence-free subspace with superconducting devices inside a cavity by unconventional geometric manipulation. Universal single-qubit gates in encoded qubit can be achieved with cavity assisted interaction. A measurement-based two-qubit Controlled-Not gate is produced with parity measurements assisted by an auxiliary superconducting device and followed by prescribed single-qubit gates. The measurement of currents on two parallel devices can realize a projective measurement, which is equivalent to the parity measurement on the involved devices.

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Zheng-Yuan Xue, Shi-Liang Zhu, Z. D. Wang. 2009-09-08. Quantum computation in decoherence-free subspace with superconducting devices. https://doi.org/10.1140/epjd%2Fe2009-00224-4

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