TY  - JOUR
AU  - Zhang, Qiang
AU  - Goebel, Alexander
AU  - Wagenknecht, Claudia
AU  - Chen, Yu-Ao
AU  - Zhao, Bo
AU  - Yang, Tao
AU  - Mair, Alois
AU  - Schmiedmayer, Jörg
AU  - Pan, Jian-Wei
PY  - 2006
DA  - 2006//
TI  - Experimental quantum teleportation of a two-qubit composite system
T2  - Nat. Phys.
JO  - Nature Physics
SP  - 678
EP  - 682
VL  - 2
IS  - 10
KW  - fromIPMRAS
KW  - quantum teleportation
AB  - Quantum teleportation, a way to transfer the state of a quantum system from one location to another, is central to quantum communication and plays an important role in a number of quantum computation protocols. Previous experimental demonstrations have been implemented with single photonic or ionic qubits. However, teleportation of single qubits is insufficient for a large-scale realization of quantum communication and computation. Here, we present the experimental realization of quantum teleportation of a two-qubit composite system. In the experiment, we develop and exploit a six-photon interferometer to teleport an arbitrary polarization state of two photons. The observed teleportation fidelities for different initial states are all well beyond the state estimation limit of 0.40 for a two-qubit system. Not only does our six-photon interferometer provide an important step towards teleportation of a complex system, it will also enable future experimental investigations on a number of fundamental quantum communication and computation protocols
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=795), last updated on Wed, 09 May 2012 11:33:41 -0500
ID  - Zhang_etal2006
ER  -