EPJ

2011 Impact factor 1.562
EPJ ST - Special Topics
Special Topics
Eur. Phys. J. Special Topics 160, 319-330 (2008)
DOI: 10.1140/epjst/e2008-00735-6

Optimal continuous variable telecloning with bright entangled beams

S. Olivares1, 2, 3 and M.G.A. Paris3, 4

1  CNISM, UdR Milano Università, 20133 Milano, Italy
2  Dipartimento di Fisica e Matematica dell'Università dell'Insubria, 22100 Como, Italy
3  Dipartimento di Fisica dell'Università di Milano, 20133 Milano, Italy
4  Institute for Scientific Interchange, 10133 Torino, Italy

stefano.olivares@mi.infn.it
matteo.paris@fisica.unimi.it

Published online: 18 June 2008

Abstract
We address continuous variable $1 \rightarrow 2$ telecloning based on three-mode entangled states of the radiation field. After reviewing existing protocols using phase-space formalism we suggest a novel scheme which allows telecloning with optimal fidelity also in the high energy regime. Being not limited by energy constraints our scheme is suitable to be implemented with feasible three-mode entanglement sources.



© EDP Sciences, Springer-Verlag 2008