Comments on "Best conventional solutions to the King's problem"
Gen Kimura, Hajime Tanaka, Masanao Ozawa
Abstract
Conventional solutions to the (Mean) King's problem without using entanglement have been investigated by Aravind [P. K. Aravind, ``Best conventional solutions to the King's problem'', Z. Naturforsch. 58a, 682 (2003)]. We report that the upper bound for the success probability claimed there is not valid in general, and give a condition for the claim to be justified.
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