Numerical Experiments on the Capacity of Quantum Channel with Entangled Input States

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概要

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• The capacity of quantum channel with product input states was formulated by the quantum coding theorem.However, whether entangled input states can enhance the quantum channel is still open. It turns out that this problem is reduced to a special case of the more general problem whether the capacity of product quantum channel exhibits additivity. In the present study, we apply one of the quantum Arimoto-Blahut type algorithms to the latter problem. The results suggest that the additivity of product quantum channel capacity always holds and that entangled input states cannot enhance the quantum channel capacity.

• 社団法人電子情報通信学会の論文
• 2001-10-01

著者

• Nagaoka Hiroshi

  The Graduate School Of Information Systems University Of Electro-communications

• Nagaoka Hiroshi

  Graduate School Of Information Systems The University Of Electro-communications

• Osawa Susumu

  The High Energy Accelerator Research Organization (kek)

関連論文

• The exponential family of Markov chains and its information geometry
• A New Proof of the Channel Coding Theorem via Hypothesis Testing in Quantum Information Theory
• Numerical Experiments on the Capacity of Quantum Channel with Entangled Input States

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