Relating quantum discord with the quantum dense coding capacity

Journal Article · Thu Jan 15 00:00:00 EST 2015 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776115010069· OSTI ID:22472440

Wang, Xin; Qiu, Liang; Li, Song; Zhang, Chi ^[1]; Ye, Bin ^[2]

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1. China University of Mining and Technology, School of Sciences (China)
2. China University of Mining and Technology, School of Information and Electrical Engineering (China)

We establish the relations between quantum discord and the quantum dense coding capacity in (n + 1)-particle quantum states. A necessary condition for the vanishing discord monogamy score is given. We also find that the loss of quantum dense coding capacity due to decoherence is bounded below by the sum of quantum discord. When these results are restricted to three-particle quantum states, some complementarity relations are obtained.

• OSTI ID: 22472440
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 120, Issue 1; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAPACITY
LOSSES
PARTICLES
QUANTUM CRYPTOGRAPHY
QUANTUM DECOHERENCE
QUANTUM STATES