Boundary effect of deterministic dense coding

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Zhengfeng Ji, Yuan Feng, Runyao Duan, and Mingsheng Ying
State Key Laboratory of Intelligent Technology and Systems, Department of Computer Science and Technology, Tsinghua University, Beijing 100084, People's Republic of China

Received 20 January 2006; published 20 March 2006

Wepresent a rigorous proof of an interesting boundary effect ofdeterministic dense coding first observed by S. Mozes, J. Oppenheim,and B. Reznik [Phys. Rev. A 71, 012311 (2005)]. Namely,it is shown that d²–1 cannot be the maximal alphabetsize of any isometric deterministic dense coding schemes utilizing d-levelpartial entanglement.

URL:	http://link.aps.org/doi/10.1103/PhysRevA.73.034307
DOI:	10.1103/PhysRevA.73.034307
PACS:	03.67.Hk; 03.65.Ud; 03.67.Mn 03.67.Hk Quantum communication 03.65.Ud Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) 03.67.Mn Quantum entanglement production, characterization, and manipulation YEAR: 2006
KEYWORDS:	quantum communication, quantum entanglement, protocols, encoding

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