Comment II on ''Dense coding in entangled states''

Journal Article · Tue Jul 01 00:00:00 EDT 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.68.016302· OSTI ID:20639995

Akhavan, O ^[1]; Rezakhani, A T ^[1]

---

1. Department of Physics, Sharif University of Technology, P.O. Box 11365-9161, Tehran, Iran (Iran, Islamic Republic of)

In a recent Brief Report, 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.

• OSTI ID: 20639995
• Journal Information: Physical Review. A, Vol. 68, Issue 1; Other Information: DOI: 10.1103/PhysRevA.68.016302; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CORRELATIONS
DATA TRANSMISSION
ENERGY LEVELS
INFORMATION THEORY
QUANTUM MECHANICS
SECRECY PROTECTION