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Uncertainty trade-off and disturbance trade-off for quantum measurements
Published in Indian Academy of Sciences
2015
Volume: 109
   
Issue: 11
Pages: 2044 - 2051
Abstract
An important non-classical feature of quantum measurements is the celebrated uncertainty trade-off, namely that the uncertainties in the outcomes of measurements performed on distinct yet identically prepared ensembles of systems cannot all be made arbitrarily small. Recently, we have shown that quantum measurements also exhibit another non-classical feature of disturbance trade-off namely, that the disturbances associated with measurements performed on distinct yet identically prepared ensembles of systems in a pure state cannot all be made arbitrarily small. In this article, we review the known results on uncertainty trade-off and disturbance trade-off for projective and non-projective measurements.
About the journal
JournalCurrent Science
PublisherIndian Academy of Sciences
ISSN00113891
Open AccessNo