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A Scheme for Dense Coding in the Non-Symmetric Quantum Channel
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YAN Feng-Li1,2;WANG Mei-Yu1 |
1College of Physics, Hebei Normal University, Shijiazhuang 050016
2CCAST (World Laboratory), PO Box 8730, Beijing 100080 |
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Cite this article: |
YAN Feng-Li, WANG Mei-Yu 2004 Chin. Phys. Lett. 21 1195-1197 |
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Abstract We investigate the dense coding in the case of non-symmetric Hilbert spaces of the sender and receiver's particles sharing the quantum maximally entangled state. The efficiency of gaining classical information is also considered. We conclude that when a more level particle is with the sender, she can obtain a non-symmetric quantum channel from a symmetric one by entanglement transfer. Thus the efficiency of information transmission is improved.
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Keywords:
03.67.Hk
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Published: 01 July 2004
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