http://www.cnr.it/ontology/cnr/individuo/prodotto/ID294287
Quantum Process Nonclassicality (Articolo in rivista)
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- Quantum Process Nonclassicality (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevLett.110.160401 (literal)
- Alternative label
Rahimi-Keshari, Saleh; Kiesel, Thomas; Vogel, Werner; Grandi, Samuele; Zavatta, Alessandro; Bellini, Marco (2013)
Quantum Process Nonclassicality
in Physical review letters (Print)
(literal)
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- Rahimi-Keshari, Saleh; Kiesel, Thomas; Vogel, Werner; Grandi, Samuele; Zavatta, Alessandro; Bellini, Marco (literal)
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- Centre for Quantum Computation and Communication Technology, School of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, Australia; Arbeitsgruppe Quantenoptik, Institut für Physik, Universität Rostock, D-18051 Rostock, Germany; Dipartimento di Fisica, Università Degli Studi di Milano, I-20133 Milano, Italy; Istituto Nazionale di Ottica, INO-CNR, Largo Enrico Fermi, 6, I-50125 Firenze, Italy; Department of Physics and LENS, University of Firenze, 50019 Sesto Fiorentino, Firenze, Italy (literal)
- Titolo
- Quantum Process Nonclassicality (literal)
- Abstract
- We propose a definition of nonclassicality for a single-mode quantum-optical process based on its action on coherent states. If a quantum process transforms a coherent state to a nonclassical state, it is verified to be nonclassical. To identify nonclassical processes, we introduce a representation for quantum processes, called the process-nonclassicality quasiprobability distribution, whose negativities indicate nonclassicality of the process. Using this distribution, we derive a relation for predicting nonclassicality of the output states for a given input state. We experimentally demonstrate our method by considering the single-photon addition as a nonclassical process and predicting nonclassicality of the output state for an input thermal state. DOI: 10.1103/PhysRevLett.110.160401 (literal)
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