31 August 2007 What is the information in a photon?
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Abstract
This paper considers the amount of information in a photon. It is argued that a photon in a pure state also carries information, which is contrary to established opinion based on von Neumann entropy.
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Subhash Kak, "What is the information in a photon?", Proc. SPIE 6664, The Nature of Light: What Are Photons?, 666403 (31 August 2007); doi: 10.1117/12.734680; https://doi.org/10.1117/12.734680
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