[time 1070] RE: Present tense and other concepts


Koichiro Matsuno (kmatsuno@vos.nagaokaut.ac.jp)
Wed, 1 Dec 1999 09:48:00 +0900


Folks,

  On Tuesday, November 30, 1999 2:27 AM, Matti Pitkanen
<matpitka@pcu.helsinki.fi> wrote:

>The definitions of density matrix and associated entanglement entropy are
>actually not at all trivial since quantum states are quantum histories . .



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