Identifying the Information Gain of a Quantum Measurement
نویسندگان
چکیده
منابع مشابه
analysis of reading comprehension needs of the students of paramedical studies: the case of the students of health information management (him)
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15 صفحه اولInformation gain in quantum eavesdropping
We analyse the information obtained by an eavesdropper during the various stages of a quantum cryptographic protocol associated with key distribution . We provide both an upper and a lower limit on the amount of information that may have leaked to the eavesdropper at the end of the key distribution procedure . These limits are restricted to intercept/resend eavesdropping strategies . The upper ...
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We find quantum signatures of chaos in various metrics of information gain in quantum tomography. We employ a quantum state estimator based on weak collective measurements of an ensemble of identically prepared systems. The tomographic measurement record consists of a sequence of expectation values of a Hermitian operator that evolves under repeated application of the Floquet map of the quantum...
متن کاملInformation gain in quantum continual measurements
Inspired by works on information transmission 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. 1 Quantum measurements and entropies We speak of quantum continual m...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2014
ISSN: 0018-9448,1557-9654
DOI: 10.1109/tit.2014.2365207