Picture of smart phone in human hand

World leading smartphone and mobile technology research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers from the Department of Computer & Information Sciences involved in researching exciting new applications for mobile and smartphone technology. But the transformative application of mobile technologies is also the focus of research within disciplines as diverse as Electronic & Electrical Engineering, Marketing, Human Resource Management and Biomedical Enginering, among others.

Explore Strathclyde's Open Access research on smartphone technology now...

Identifying a two-state Hamiltonian in the presence of decoherence

Cole, Jared H. and Greentree, Andrew D. and Oi, Daniel K. L. and Schirmer, Sonia G. and Wellard, Cameron J. and Hollenberg, Lloyd C. L. (2006) Identifying a two-state Hamiltonian in the presence of decoherence. Physical Review A, 73 (6). -. ISSN 1094-1622

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Mapping the system evolution of a two-state system allows the determination of the effective system Hamiltonian directly. We show how this can be achieved even if the system is decohering appreciably over the observation time. A method to include various decoherence models is given and the limits of this technique are explored. This technique is applicable both to the problem of calibrating a control Hamiltonian for quantum computing applications and for precision experiments in two-state quantum systems. The accuracy of the results obtained with this technique are ultimately limited by the validity of the decoherence model used.