Quantum cloning and teleportation fidelity in the noncommutative phase-space

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Leal, P (Autor) Outra; Bernardini, AE (Autor) Outra; Bertolami, O (Autor) FCUP

Revista

Título: Journal of Physics A: Mathematical and Theoretical

Vol. 52

ISSN: 1751-8113

Editora: Institute of Physics Publishing

Indexação

ISI Web of Knowledge - 5 Citações

Scopus - 5 Citações

Outras Informações

ID Authenticus: P-00Q-YFZ

DOI: 10.1088/1751-8121/ab359b

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18