Continuous variable quantum teleportation and quantum secret sharing

Author

Lam, Ping Koy ; Bowen, W.P. ; Treps, Nicolas ; Buchler, B.C. ; Schnabel, Raik ; Symul, Thomas ; Sanders, Barry C. ; Tyc, Tomas ; Ralph, Timothy C.

Author_Institution

Dept. of Phys., Australian Nat. Univ., Canberra, ACT, Australia

fYear

2003

fDate

22-27 June 2003

Firstpage

410

Abstract

Two quantum communication protocols in the continuous variable regime are studied using a stable source of continuous variable Einstein-Podolsky-Rosen (EPR) entanglement generated from a pair of optical parametric amplifiers. Demonstration of quantum teleportation of the quadrature amplitude information of a light field and realization of a (2,3) threshold QSS (quantum secret sharing) scheme using an EPR entanglement, optical interferometers and an electro-optic feedforward loop are reported.

Keywords

EPR paradox; light interferometers; optical parametric amplifiers; protocols; quantum cryptography; quantum entanglement; teleportation; Einstein-Podolsky-Rosen entanglement; continuous variable quantum secret sharing; continuous variable quantum teleportation; electro-optic feedforward loop; optical interferometers; optical parametric amplifiers; quadrature amplitude information; quantum communication protocols; Cryptography; Nonlinear optics; Optical amplifiers; Optical interferometry; Paramagnetic resonance; Protocols; Quantum entanglement; Semiconductor optical amplifiers; Stimulated emission; Teleportation;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 2003. EQEC '03. European

Print_ISBN

0-7803-7733-8

Type

conf

DOI

10.1109/EQEC.2003.1314268

Filename

1314268