Geometric quantum gates robust against stochastic control errors

Abstract

We analyze a scheme for quantum computation where quantum gates can be continuously changed from standard dynamic gates to purely geometric ones. These gates are enacted by controlling a set of parameters that are subject to unwanted stochastic fluctuations. This kind of noise results in a departure from the ideal case that can be quantified by a gate fidelity. We find that the maximum of this fidelity corresponds to quantum gates with a vanishing dynamical phase.

4 pagers

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Cited by in corpus (98)

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• Piecewise Adiabatic Following in Non-Hermitian Cycling
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• Geometric Quantum Gates, Composite Pulses, and Trotter-Suzuki Formulas
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• Towards Large-Scale Quantum Computation
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