Disentangling and broadcasting an entangled state simultaneously by asymmetric cloning
Yafei Yu, Jian Feng, Xiaoqing Zhou, Mingsheng Zhan
Abstract
We construct a quantum machine which, by using asymmetric cloner, deals with disentangling and broadcasting entanglement in a single unitary evolution. The attainable maximum value of the scaling parameter s for disentangling is identical to that obtained in previous works. The fidelity of the cloning state with respect to the input entangled state is state-dependent.
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