Selective recoupling and stochastic dynamical decoupling

Abstract

An embedded selective recoupling method is proposed which is based on the idea of embedding the recently proposed deterministic selective recoupling scheme of Yamaguchi et al. [quant-ph/0411099] into a stochastic dynamical decoupling method, such as the recently proposed Pauli-random-error-correction-(PAREC) scheme [Eur. Phys. J. D 32, 153, quant-ph/0407262]. The recoupling scheme enables the implementation of elementary quantum gates in a quantum information processor by partial suppression of the unwanted interactions. The random dynamical decoupling method cancels a significant part of the residual interactions. Thus the time scale of reliable quantum computation is increased significantly. Numerical simulations are presented for a conditional two-qubit swap gate and for a complex iterative quantum algorithm.

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Cited by in corpus (7)

• Enhanced Convergence and Robust Performance of Randomized Dynamical Decoupling
• Coherent Control of Quantum Dynamics with Sequences of Unitary Phase-Kick Pulses
• Experimental protection of quantum gates against decoherence and control errors
• Advantages of Randomization in Coherent Quantum Dynamical Control
• Randomized Dynamical Decoupling Techniques for Coherent Quantum Control
• One, Two, and $n$ Qubit Decoherence
• Engineering Precise and Robust Effective Hamiltonians