title: Remote information concentration using a bound entangled state.
abstract: Remote information concentration, the reverse process of quantum telecloning, is presented. In this scheme, quantum information originally from a single qubit, but now distributed into three spatially separated qubits, is remotely concentrated back to a single qubit via an initially shared entangled state without performing any global operations. This entangled state is a single unlockable bound entangled state and we analyze its properties.
authors.affiliation: Semiconductors Laboratory, THe Institute of Physical and Chemical Research, Wako-shi, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Murao
authors.forename: V
authors.initials: V
authors.lastname: Vedral