Author:Green, TJ; Sastrawan, J; Uys, H; Biercuk, MJDate:Sep 2013We address the problem of deriving analytic expressions for calculating universal decoherence-induced errors in qubits undergoing arbitrary, unitary, time-dependent quantum control protocols. We show that the fidelity of a control operation ...Read more
Author:Konrad, T; Uys, HDate:Jan 2012Unsharp measurements allow the estimation and tracking of quantum wave functions in real time with minimal disruption of the dynamics. Here we demonstrate that high-fidelity state monitoring, and hence quantum control, is possible, even in ...Read more
Author:Uys, Hermann; Bassa, H; Du Toit, P; Ghosh, S; Konrad, TDate:Jun 2018Measurement combined with feedback that aims to restore a presumed premeasurement quantum state will yield this state after a few measurement-feedback cycles even if the actual state of the system initially had no resemblance to the presumed ...Read more
