The Controlled Teleportation of an Arbitrary Two-Atom Entangled State in Driven Cavity QED

• DOI: 10.1007/s10773-008-9924-6
• Publication Date: 2009-01-05T15:19:13Z
• Authors: Chuan-Jia Shan; Ji-Bing Liu; Tang-Kun Liu; Yan-Xia Huang; Hong Li
• Keywords: Quantum Physics; 0103 physical sciences; FOS: Physical sciences; Quantum Physics (quant-ph); 01 natural sciences

In this paper, we propose a scheme for the controlled teleportation of an arbitrary two-atom entangled state $|��>_{12}=a|gg>_{12}+b|ge>_{12}+c|eg>_{12}+d|ee>_{12}$ in driven cavity QED. An arbitrary two-atom entangled state can be teleported perfectly with the help of the cooperation of the third side by constructing a three-atom GHZ entangled state as the controlled channel. This scheme does not involve apparent (or direct) Bell-state measurement and is insensitive to the cavity decay and the thermal field. The probability of the success in our scheme is 1.0.<br/>10 pages<br/>