Dynamically error-corrected gates for universal quantum computation.

Abstract

Scalable quantum computation in realistic devices requires that precise control can be implemented efficiently in the presence of decoherence and operational errors. We propose a general constructive procedure for designing robust unitary gates on an open quantum system without encoding or measurement overhead. Our results allow for a low-level error correction strategy solely based on Hamiltonian engineering using realistic bounded-strength controls and may substantially reduce implementation requirements for fault-tolerant quantum computing architectures.

Cite this paper

@article{Khodjasteh2009DynamicallyEG, title={Dynamically error-corrected gates for universal quantum computation.}, author={Kaveh Khodjasteh and Lorenza Viola}, journal={Physical review letters}, year={2009}, volume={102 8}, pages={080501} }