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DanielleFong's profile
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@DanielleFong

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Empire of the Future
Joined February 2008

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    1. Raeez‏ @raeez 1 Jul 2020
      Replying to @raeez @DanielleFong

      asking questions like: assuming you could classically control some particle excitations (i.e. control macroscopic variables like position) that have some quantum state, what could you compute?

      1 reply 1 retweet 1 like
    2.  🤷🏻‍♀️‏ @DanielleFong 1 Jul 2020
      Replying to @raeez

      extremely interesting to me! sometimes i like thinking about it in other ways, like depending upon the theory and the configuration, what computational constraints are imposed on the universe. e.g. is the complexity of qcd in a nucleon tied to its mass & therefore time (sluggish)

      1 reply 1 retweet 2 likes
    3. Raeez‏ @raeez 1 Jul 2020
      Replying to @DanielleFong

      The most fruitful approach I've found to answering these questions is to realize the particles as objects in some representation category of some symmetry (group, quantum group etc.).

      2 replies 1 retweet 1 like
    4.  🤷🏻‍♀️‏ @DanielleFong 1 Jul 2020
      Replying to @raeez

      right, I see how a lot of things can collapse to that approximately, classical dynamics even can collapse to this (e.g. noether's theorem)

      1 reply 1 retweet 1 like
    5. Raeez‏ @raeez 1 Jul 2020
      Replying to @DanielleFong

      I've yet to find a limit to this principle 😋

      1 reply 1 retweet 1 like
    6. Raeez‏ @raeez 1 Jul 2020
      Replying to @raeez @DanielleFong

      aka Emmy Noether knew what's up!

      1 reply 1 retweet 1 like
    7.  🤷🏻‍♀️‏ @DanielleFong 1 Jul 2020
      Replying to @raeez

      we still end up with weirdness on branch cuts between symmetries/ 3-manifold. wondering if this is where a lot of quantum weirdness comes from. e.g. free will theorem for, as @EricRWeinstein says, questions we ask of quantum particles the classical theory says are not well posed.

      3 replies 1 retweet 1 like
    8. Raeez‏ @raeez 1 Jul 2020
      Replying to @DanielleFong @EricRWeinstein

      Then you're led to ask what non-commutative deformations correspond to 3-fold topology... and the waters get pretty deep quite fast 😋 There's a pretty deep connection, happy to explain it as I see it some time

      1 reply 1 retweet 1 like
    9.  🤷🏻‍♀️‏ @DanielleFong 1 Jul 2020
      Replying to @raeez @EricRWeinstein

      yeah so that's a fascinating question, right? it's not clear there are limits. following from the free will theorem, it's possible that an extremely willful and intelligent electron could play a sort of... extremely intelligent game of quantum go at the boundaries ⚪️⚪️ ⚪️⚫️⚪️⚫️

      1 reply 1 retweet 4 likes
    10.  🤷🏻‍♀️‏ @DanielleFong 1 Jul 2020
      Replying to @DanielleFong @raeez @EricRWeinstein

      i mean there's a singularity in there. anything can happen, anything could be hidden and is just behnd the renormalization

      2 replies 1 retweet 1 like
       🤷🏻‍♀️‏ @DanielleFong 1 Jul 2020
      Replying to @DanielleFong @raeez @EricRWeinstein

      i think there are computational complexity constraints, constraints of dynamics, but maybe not physical constraints, constraints to scale as you'd normally see it.

      9:28 AM - 1 Jul 2020
      • 1 Like
      • 🤷🏻‍♀️
      0 replies 0 retweets 1 like

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