A deterministic teleportation scheme for an arbitrary two-particle state is proposed in cavity QED. The success probability can reach 1.0. In addition, the scheme is insensitive to both the cavity decay and the thermal field.
We propose a scheme for controlled teleportion of an arbitrary two-atom state in cavity QED. In the scheme a GHZ state and an EPR pair are chosen as quantum channels. The sender can teleport quantum information to the receiver with the help of the controller. In the teleportation process two pairs of atoms interact respectively with two identical single-mode cavities; meanwhile, the two pairs of atoms are respectively driven by two identical classical fields. The scheme is insensitive to the cavity decay and thermal field and the success probability is 1.0.