Cavity coherent-state cloning via Raman scattering
Moorad Alexanian · Physical Review A · 2003
The Raman interaction of atoms singly traversing a two-mode cavity constitutes a quantum-cloning machine for coherent states. The quality of the two identical output coherent states is independent of the initial, albeit different, coherent state, initially present inside the cavity. The cloning of nonorthogonal states indicates that the entanglement of the output states for an arbitrary initial state is the essence of the no-cloning theorem.