A Model of Quantum Mechanical Communication Channel with Quantum and Thermal Noises

DOI Web Site Web Site BIBCODE 参考文献45件
  • Kitajima Sachiko
    Graduate School of Humanities and Sciences and Department of Physics, Faculty of Science, Ochanomizu University
  • Ban Masashi
    Advanced Research Laboratory, Hitachi, Ltd. CREST, Japan Science and Technology Agency
  • Shibata Fumiaki
    Graduate School of Humanities and Sciences and Department of Physics, Faculty of Science, Ochanomizu University

書誌事項

タイトル別名
  • Model of Quantum Mechanical Communication Channel with Quantum and Thermal Noises
公開日
2005
DOI
  • 10.1143/jpsj.74.1436
公開者
一般社団法人 日本物理学会

この論文をさがす

説明

Dynamics of quantum information channel is studied with the use of a boson detector model. Explicit results are given for quantum dense coding process on the basis of an equivalence relation between a classical capacity and von Neumann mutual information. Reduced density matrices for an entangled spin degree of freedom of an incoming particle are exactly solved to give complete time evolution under influence of fluctuations due to a detector. Quantum mechanical channel matrix and the classical capacity are determined as functions of time and temperature. Decoherence properties of the entangled states under quantum and thermal noises are fully discussed.

収録刊行物

参考文献 (45)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ