Decoherence suppression for oscillator-assisted geometric quantum gates via symmetrization

Details Decoherence suppression for oscillator-assisted geometric quantum gates via symmetrization Decoherence suppression for oscillator-assisted geometric quantum gates via symmetrization

2004-10-14

arxiv.org/abs/quant-ph/0410114v1

Phys. Rev. A 71, 060307(R) (2005)

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevA.71.060307

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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