International Journal of Quantum Information
A SCHEME FOR IMPLEMENTATION OF DENSE CODING WITH W-CLASS STATES IN CAVITY QED
Liu Ye, Juan He
Abstract
An experimentally feasible scheme for implementing quantum dense coding in cavity QED is proposed. In the scheme a W-class state can first be prepared by letting the atoms interact simultaneously with a highly detuned cavity mode. Then the states coded on this W-class state can be exactly distinguished by detecting atomic states. The scheme is insensitive to the cavity field, and the quantum dense coding can be realized in a simple way.