Author:Sastrawan, J; Jones, C; Akhalwaya, I; Uys, H; Biercuk, MJDate:Aug 2016We introduce concepts from optimal estimation to the stabilization of precision frequency standards limited by noisy local oscillators. We develop a theoretical framework casting various measures for frequency standard variance in terms of ...Read more
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:Soare, A; Ball, H; Hayes, D; Zhen, X; Jarratt, MC; Sastrawan, J; Uys, H; Biercuk, MJDate:Apr 2014We develop and demonstrate a technique to engineer universal unitary baths in quantum systems. Using the correspondence between unitary decoherence due to ambient environmental noise and errors in a control system for quantum bits, we show ...Read more