Picture of flying drone

Award-winning sensor signal processing 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 involved in award-winning research into technology for detecting drones. - but also other internationally significant research from within the Department of Electronic & Electrical Engineering.

Strathprints also exposes world leading research from the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Identifying an experimental two-state Hamiltonian to arbitrary accuracy

Cole, J H and Schirmer, S G and Greentree, A D and Wellard, C J and Oi, D K L and Hollenberg, L C L (2005) Identifying an experimental two-state Hamiltonian to arbitrary accuracy. Physical Review A, 71 (6). ISSN 1094-1622

[img]
Preview
PDF
0501116v2.pdf - Preprint

Download (285kB) | Preview

Abstract

Precision control of a quantum system requires accurate determination of the effective system Hamiltonian. We develop a method for estimating the Hamiltonian parameters for some unknown two-state system and providing uncertainty bounds on these parameters. This method requires only one measurement basis and the ability to initialize the system in some arbitrary state which is not an eigenstate of the Hamiltonian in question. The scaling of the uncertainty is studied for large numbers of measurements and found to be proportional to the reciprocal of the square root of the number of measurements.