Separating the classical and quantum information via quantum cloning

Details Separating the classical and quantum information via quantum cloning Separating the classical and quantum information via quantum cloning

2005-08-06

arxiv.org/abs/quant-ph/0508055v1

Phys. Rev. Lett. 95, 090504 (2005)

Physics

Quantum Physics

4 pages, 2figures

Scientific paper

10.1103/PhysRevLett.95.090504

An application of quantum cloning to optimally interface a quantum system with a classical observer is presented, in particular we describe a procedure to perform a minimal disturbance measurement on a single qubit by adopting a 1->2 cloning machine followed by a generalized measurement on a single clone and the anti-clone or on the two clones. Such scheme has been applied to enhance the transmission fidelity over a lossy quantum channel.

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