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N. Spagnolo, F. Sciarrino and F. De Martini, “Resilience to Decoherence of the Macroscopic Quantum Superpositions Generated by Universally Covariant Optimal Quantum Cloning,” Physical Review A, Vol. 82, No. 3, 2010, Article ID: 032325. doi:10.1103/PhysRevA.82.032325

has been cited by the following article:

• TITLE: Remote Quantum-Information Concentration: Reversal of Ancilla-Free Phase-Covariant Telecloning

  AUTHORS: Xinwen Wang, Shiqing Tang

  KEYWORDS: Remote Quantum-Information Concentration; Phase-Covariant Telecloning; W State

  JOURNAL NAME: Open Journal of Microphysics, Vol.3 No.1, February 27, 2013

  ABSTRACT: Telecloning and its reverse process, referred to as remote quantum-information concentration (RQIC), have been attracting considerable interest because of their potential applications in quantum-information processing. The previous RQIC protocols were focused on the reverse process of the optimal universal telecloning. We here study the reverse process of ancilla-free phase-covariant telecloning (AFPCT). It is shown that the quantum information originally distributed into two spatially separated qubits from a single qubit via the optimal AFPCT procedure can be remotely concentrated back to a single qubit with a certain probability by using an asymmetric W state as the quantum channel.