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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Quantum cloning and teleportation fidelity in the noncommutative phase-space

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Author(s):
Leal, P. [1] ; Bernardini, A. E. ; Bertolami, O.
Total Authors: 3
Affiliation:
[1] Univ Porto, Fac Ciencias, Dept Fis & Astron, Rua Campo Alegre 687, P-4169007 Porto - Portugal
Total Affiliations: 1
Document type: Journal article
Source: Journal of Physics A-Mathematical and Theoretical; v. 52, n. 37 SEP 13 2019.
Web of Science Citations: 0
Abstract

The formulation of the no-cloning theorem in the framework of phasespace noncommutative (NC) quantum mechanics (QM) is examined, and its implications for the computation of quantum cloning probabilities and teleportation fidelity are investigated through the Weyl-Wigner formulation of QM. The principles of QM re-edited in terms of a deformed Heisenberg-Weyl algebra are shown to provide a covariant formulation for the quantum fidelity, through which the results from the no-cloning theorem for the ordinary QM can be reproduced. Besides exhibiting an explicit correspondence between standard and NC QM for Gaussian Wigner functions, our results suggest a feasible interpretation for the NC continuous variable quantum cloning given in terms of quantum teleportation protocols. (AU)

FAPESP's process: 17/02294-2 - The classical-quantum correspondence of cosmological scenarios from the analysis of Quantum Decoherence and Gaussian correlations
Grantee:Alex Eduardo de Bernardini
Support type: Scholarships abroad - Research