Physics – Quantum Physics
Scientific paper
2006-04-20
Phys. Rev. A 74, 012310 (2006)
Physics
Quantum Physics
5 pages, journal version
Scientific paper
10.1103/PhysRevA.74.012310
We examine dense coding with an arbitrary pure entangled state sharing
between the sender and the receiver. Upper bounds on the average success
probability in approximate dense coding and on the probability of conclusive
results in unambiguous dense coding are derived. We also construct the optimal
protocol which saturates the upper bound in each case.
Duan Runyao
Feng Yangyue
Ji Zhengfeng
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