Inspired by works on information through quantum channels, we propose the use of a couple of mutual entropies to quantify the efficiency of continual measurement schemes in extracting information on the measured quantum system. Properties of these measures of information are studied and bounds on them are derived.
Information gain in quantum continual measurements / A. Barchielli, G. Lupieri - In: Quantum stochastics and information : statistics, filtering and control : University of Nottingham, UK, 15-22 July 2006 / [a cura di] V. P. Belavkin, M. Guta. - [s.l] : World Scientific, 2008. - ISBN 978-981-283-295-5. - pp. 325-345 (( convegno Quantum stochastics and information : statistics, filtering and control tenutosi a University of Nottingham, UK nel 2006.
Information gain in quantum continual measurements
G. LupieriUltimo
2008
Abstract
Inspired by works on information through quantum channels, we propose the use of a couple of mutual entropies to quantify the efficiency of continual measurement schemes in extracting information on the measured quantum system. Properties of these measures of information are studied and bounds on them are derived.
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