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Decoherence suppression for oscillator-assisted geometric quantum gates via symmetrization

Li-Xiang Cen·Paolo Zanardi
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Abstract

We propose a novel symmetrization procedure to beat decoherence for oscillator-assisted quantum gate operations. The enacted symmetry is related to the global geometric features of qubits transformation based on ancillary oscillator modes, e.g. phonons in an ion-trap system. It is shown that the devised multi-circuit symmetrized evolution endows the system with a two-fold resilience against decoherence: insensitivity to thermal fluctuations and quantum dissipation.

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Li-Xiang Cen, Paolo Zanardi. 2004-10-14. Decoherence suppression for oscillator-assisted geometric quantum gates via symmetrization. https://doi.org/10.1103/physreva.71.060307

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