Quantum tomography protocols with positivity are compressed sensing protocols

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Quantum tomography protocols with positivity are compressed sensing protocols

Characterising complex quantum systems is a vital task in quantum information science. Quantum tomography, the standard tool used for this purpose, uses a well-designed measurement record to reconstruct quantum states and processes. It is, however, notoriously inefficient. Recently, the classical signal reconstruction technique known as ‘compressed sensing’ has been ported to quantum informatio...

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ژورنال

عنوان ژورنال: npj Quantum Information

سال: 2015

ISSN: 2056-6387

DOI: 10.1038/npjqi.2015.18