Showing papers by "Stefano Pirandola published in 2004"
TL;DR: In this paper, the authors show how a qubit can be fault-tolerant encoded in the infinite-dimensional Hilbert space of an optical mode using a cross-Kerr interaction.
Abstract: We show how a qubit can be fault-tolerantly encoded in the infinite-dimensional Hilbert space of an optical mode. The scheme is efficient and realizable with present technologies. In fact, it involves two travelling optical modes coupled by a cross-Kerr interaction, initially prepared in coherent states, one of which is much more intense than the other. At the exit of the Kerr medium, the weak mode is subject to a homodyne measurement and a quantum codeword is conditionally generated in the quantum fluctuations of the intense mode.
71 citations
TL;DR: In this article, an optomechanical system is presented as a paradigm of a three-mode teleportation network, where quantum state transfer among optical and vibrational modes is possible by exploiting correlations established by radiation pressure.
Abstract: We present an optomechanical system as a paradigm of a three-mode teleportation network. Quantum state transfer among optical and vibrational modes becomes possible by exploiting correlations established by radiation pressure.
34 citations
TL;DR: In this article, the authors investigate a game where a sender (Alice) teleports coherent states to two receivers (Bob and Charlie) through a tripartite Gaussian state.
Abstract: We investigate a game where a sender (Alice) teleports coherent states to two receivers (Bob and Charlie) through a tripartite Gaussian state. The aim of the receivers is to optimize their teleportation fidelities by means of local operations and classical communications. We show that a non-cooperative strategy, corresponding to the standard telecloning protocol, can be outperformed by a cooperative strategy, which gives rise to a novel (cooperative) telecloning protocol.
1 citations