Non-Equilibrium Dynamics of Quantum Dense Coding Process (General)
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概要
- 論文の詳細を見る
Theory of quantum mechanical communication channel under the influence of environmental fluctuations is formulated on the basis of non-equilibrium statistical mechanics. The formalism is explicitly applied to the quantum dense coding process where a qubit signal is sent into the channel in which the temperature and/or quantum fluctuations disturb an initial coherency of the signal. A quantum channel matrix, the Shannon's mutual information and quantum mechanical mutual information are analytically obtained and numerically evaluated. It is shown that the temperature effect is quite large in the signal transmission processes.
- 社団法人日本物理学会の論文
- 2004-04-15
著者
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Kitajima Sachiko
Graduate School Of Humanities And Sciences And Department Of Physics Faculty Of Science Ochanomizu U
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Kitajima Sachiko
Graduate School Of Humanities And Sciences And Department Of Physics Faculty Of Science Ochanomizu U
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Shibata Fumiaki
Graduate School Of Humanities And Sciences And Department Of Physics Faculty Of Science Ochanomizu U
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YONEMURA Tomoko
Graduate School of Humanities and Sciences and Department of Physics, Faculty of Science, Ochanomizu
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Yonemura Tomoko
Graduate School Of Humanities And Sciences And Department Of Physics Faculty Of Science Ochanomizu U
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