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michael_nielsen's profile
michael_nielsen
michael_nielsen
michael_nielsen
@michael_nielsen

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michael_nielsen

@michael_nielsen

Searching for the numinous. Co-purveyor of https://quantum.country/ 

San Francisco, CA
michaelnielsen.org
Joined July 2008

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    1. ⟨dl|yonge|mallo⟩‏ @dlyongemallo Mar 20
      • Report Tweet
      Replying to @michael_nielsen @andy_matuschak

      In the proof of "a matrix is unitary iff it preserves length", should |ψ> be |e_j> + i|e_k> rather than |e_j> - |e_k>? At first glance it doesn't look like it'd be possible to have the middle two terms in the expansion of ||M|ψ>||^2 have opposite signs if the amplitudes are real.

      2 replies 0 retweets 2 likes
    2. Giacomo Randazzo‏ @RAN3000 Mar 25
      • Report Tweet
      Replying to @dlyongemallo @michael_nielsen @andy_matuschak

      +1

      2 replies 0 retweets 1 like
      michael_nielsen‏ @michael_nielsen Mar 25
      • Report Tweet
      Replying to @RAN3000 @dlyongemallo @andy_matuschak

      Fixed, will go out in the next deploy.

      3:10 PM - 25 Mar 2019
      • 1 Like
      • ⟨dl|yonge|mallo⟩
      0 replies 0 retweets 1 like

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