https://doi.org/10.1140/epjd/e2002-00196-9
Continuous variables quantum switch teleportation using two-mode squeezed light
Kansai Advanced Research Center, Communications Research Laboratory,
588-2 Iwaoka, Nishi-ku, Kobe 651-2492, Japan
Corresponding author: a zhangyun@crl.go.jp
Received:
20
May
2002
Revised:
29
July
2002
Published online:
24
September
2002
We propose a novel quantum switch teleportation with a continuous variable, which can teleport a quantum state to two different receivers alternatively, using a pair of two-mode squeezed lights as the quantum switching to manipulate the transmission route. In this scheme, the EPR entangled beams shared by sender and receivers are produced by mixing a pair of two-mode squeezed lights on one beamsplitter and separating them by using a polarizing beam splitter. The teleportation capability of this system is examined by the criteria proposed by Ralph and Lam [10] from a small signal quantum optical point of view.
PACS: 03.67.-a – Quantum information / 42.50.Dv – Nonclassical field states; squeezed, antibunched, and sub-Poissonian states; operational definitions of the phase of the field; phase measurements
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002
