Comment on "Dense coding in entangled states"

Abstract

In a recent Brief Report, Lee et al. [L. Lee, D. Ahn, and S.W. Hwang, Phys. Rev. A 66, 024304 (2002)] have claimed that using pairwise entangled qubits gives rise to an exponentially more efficient dense coding when two parties are involved than using maximally entangled qubits shared among N parties. Here, we show that their claim is not true.

1 page, no figure, revtex

References in corpus (2)

• A Multiparticle Generalization of Entanglement Swapping
• Quantum dense coding by spatial state entanglement

Cited by in corpus (2)

• Practical scheme for quantum dense coding between three parties using microwave radiation in trapped ions
• Some Novel Thought Experiments Involving Foundations of Quantum Mechanics and Quantum Information