Local Cloning of Entangled Qubits

Details Local Cloning of Entangled Qubits Local Cloning of Entangled Qubits

2007-06-17

arxiv.org/abs/0706.2459v2

Rhysical Review A 76, 052305(2007)

Physics

Quantum Physics

6 pages, 2 figures

Scientific paper

10.1103/PhysRevA.76.052305

We discuss the exact cloning of orthogonal but entangled qubits under local operations and classical communication. The amount of entanglement necessary in blank copy is obtained for various cases. Surprisingly this amount is more than 1 ebit for certain set of two nonmaximal but equally entangled states of two qubits system. To clone any three two qubits Bell states at least log2 3 ebit is necessary.

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