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Maximally dense coding capable quantum states

Research paper by Rabindra Nepal, R. Prabhu, Aditi Sen De, Ujjwal Sen

Indexed on: 26 Dec '12Published on: 26 Dec '12Published in: Quantum Physics



Abstract

A complementarity relation is established between the capacity of multiport classical information transmission via quantum states and multiparty quantum correlation measures for three-qubit pure states. The multiparty quantum correlation measures considered are the generalized geometric measure, the tangle, and the discord monogamy score. The complementarity relation is revealed by the identification of a one-parameter family of pure three-qubit states, which we call the maximally dense coding capable family of states. These states have the maximal multiport dense coding capacity among all three-qubit pure states with an arbitrary fixed amount of the multiparty quantum correlations.