Scheme for implementing an economical phase-covariant quantum cloning machine of distant atomic qubits with single-photon interference
Y. H. Zhou, Lei Wang, Xiao-Lei Lai · Chinese Physics B · 2013
By means of cavity-assisted photon interference, a simple scheme is proposed to implement a symmetric economical phase-covariant quantum cloning machine of two remote qubits, with each in a separate cavity. With our present scheme, a high-fidelity cloning machine is realized. Our scheme may be quite useful in terms of distributed quantum information processing.