Physical Review Letters
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 err or correction strategy solely based on Hamiltonian engineering using realistic bounded-strength controls and may substantially reduce implementation requirements for fault-tolerant quantum computing architectures.
Khodjasteh, Kaveh and Viola, Lorenza, "Dynamically Error-Corrected Gates for Universal Quantum Computation" (2009). Open Dartmouth: Faculty Open Access Articles. 2665.