Communication security and metrology could be enhanced through a study of the role of quantum correlations in the distinguishability of physical processes, by researchers at the Universities of Strathclyde and Waterloo.
The study involved analysing the impact of quantum steering - the way a measurement performed on a particle can affect another distant particle. The study authors devised a method for both precisely quantifying steering's impact and relating it to the task of distinguishing physical processes.
The research could have significant implications for quantum information processing.
The study was carried out by Dr Marco Piani, of Strathclyde's Department of Physics, and Professor John Watrous, of Waterloo's Institute for Quantum Computing (IQC) and School of Computer Science. Dr Piani was also at IQC at the time of the study.
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