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State Ensembles and Quantum Entropy

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Abstract

This paper considers quantum communication involving an ensemble of states. Apart from the von Neumann entropy, it considers other measures one of which may be useful in obtaining information about an unknown pure state and another that may be useful in quantum games. It is shown that under certain conditions in a two-party quantum game, the receiver of the states can increase the entropy by adding another pure state.

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Acknowledgments

I am thankful to Kam Wai C. Chan for his comments on an earlier version of the paper. I am also thankful to the National Science Foundation for its support through grant #1117068.

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  1. Oklahoma State University, Stillwater, USA

    Subhash Kak

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  1. Subhash Kak
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Correspondence to Subhash Kak.

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Kak, S. State Ensembles and Quantum Entropy. Int J Theor Phys 55, 3017–3026 (2016). https://doi.org/10.1007/s10773-016-2934-x

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  • DOI: https://doi.org/10.1007/s10773-016-2934-x

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