Scott_Aaronson2 comments on Spooky Action at a Distance: The No-Communication Theorem - Less Wrong

10 Post author: Eliezer_Yudkowsky 05 May 2008 02:43AM

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Comment author: Scott_Aaronson2 05 May 2008 03:07:03PM 0 points [-]

Mitchell: No, even if you want to think of the position basis as the only "real" one, how does that let you decompose any density matrix uniquely into pure states? Sure, it suggests a unique decomposition of the maximally mixed state, but how would you decompose (for example) ((1/2,1/4),(1/4,1/2))?