Scheme for Implementation of Optimal Cloning of Arbitrary Single Particle Atomic State into Two Photonic States
Song Wei, Tao Qin · Communications in Theoretical Physics · 2008
We present a feasible scheme to implement the 1 → 2 optimal cloning of arbitrary single particle atomic state into two photonic states, which is important for applications in long distance quantum communication. Our scheme also realizes the tele-NOT gate of one atom to the distant atom trapped in another cavity. The scheme is based on the adiabatic passage and the polarization measurement. It is robust against a number of practical noises such as the violation of the Lamb–Dicke condition, spontaneous emission, and detection inefficiency.