Xue, Zheng-Yuan; Yi, You-Min; Cao, Zhuo-Liang - In: Physica A: Statistical Mechanics and its Applications 374 (2007) 1, pp. 119-126
We investigate economic protocol to securely distribute and reconstruct a single-qubit quantum state between two users via a tripartite entangled state in cavity QED. Our scheme is insensitive to both the cavity decay and the thermal field.