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Technology: More quantum weirdness.

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  1.  
    Posted By: TrimHolography and criticality in matchgate tensor networks.
    https://phys.org/news/2019-08-holography-criticality-matchgate-tensor-networks.html
    That is awesome and probably renders
    https://hackernoon.com/16-best-resources-to-learn-quantum-computing-in-2019-e5d8b797aeb6
    even more relevant.

    It's really these simple little ideas and transformations which people come up with which cause the biggest ructions, when taken to their conclusions.

    ETA Although it's "only an optimising technique", it allows exploration of aspects of bulk/boundary entanglement dualities heretofore inaccessible without planet-scale compute resources.
    •  
      CommentAuthorTrim
    • CommentTimeAug 23rd 2019
     
    Scientists ‘teleport’ complex info using physics trick branded ‘spooky’ by Einstein – and it could create ‘unhackable’ internet.

    https://www.thesun.co.uk/tech/9782112/quantum-teleportation-spooky-einstein-unhackable-internet/
    •  
      CommentAuthorTrim
    • CommentTimeAug 28th 2019
     
    Entangling photons generated millions of miles apart.

    https://phys.org/news/2019-08-entangling-photons-millions-miles.html
    •  
      CommentAuthorgoatcheez
    • CommentTimeSep 3rd 2019 edited
     
  5.  
    For some reason I find that Paul bloke profoundly irritating.
  6.  
    “There is a clear roadmap for several orders of magnitude in mass ahead, and we are looking forward to taking the next steps,” he says.
    https://www.popularmechanics.com/science/math/a29339863/quantum-superposition-molecules/

    Looks as though phrases like "Ah, there you are Smithers" may become passe'.
    •  
      CommentAuthorTrim
    • CommentTimeNov 1st 2019
     
  8.  
    It's a lovely little mover.
  9.  
    •  
      CommentAuthorgoatcheez
    • CommentTimeNov 12th 2019
     
    https://www.space.com/schrodingers-cat-can-be-peeked-at.html

    There may be a way of sneaking a peak at Schrödinger's cat — the famous feline-based thought experiment that describes the mysterious behavior of subatomic particles — without permanently killing the (hypothetical) animal.
  11.  
    "This is an historic moment, Igor! We are going to be the first to glimpse the Schrödinger Space inside the catbox. Is the MouseProbe ready?"
    • CommentAuthorAsterix
    • CommentTimeNov 12th 2019
     
    Posted By: goatcheezThere may be a way of sneaking a peak at Schrödinger's cat — the famous feline-based thought experiment that describes the mysterious behavior of subatomic particles — without permanently killing the (hypothetical) animal.


    So one kills the animal temporarily?
  13.  
    Posted By: Andrew Palfreyman“There is a clear roadmap for several orders of magnitude in mass ahead, and we are looking forward to taking the next steps,” he says.
    https://www.popularmechanics.com/science/math/a29339863/quantum-superposition-molecules/

    Looks as though phrases like "Ah, there you are Smithers" may become passe'.


    So a single massive particle that appears to be in two places at once - or, more accurately perhaps, in one place or the other? Let's assume the former as a working description and ask the question: what is its mass? If we move away a little, surely in the limit the combined gravity must equal that of a single particle, and so each state masses half?

    What if the molecule were charged? Here the effect we're looking at is massively stronger (electromagnetism beats gravity). Do the two states experience mutual Coulomb repulsion?
    •  
      CommentAuthorAngus
    • CommentTimeNov 28th 2019
     
    They are in two places at once, on the average, as long as you don't look.
  15.  
    Yes, but consider the questions I asked.
    •  
      CommentAuthorAngus
    • CommentTimeNov 28th 2019
     
    I did. That's looking.
    • CommentAuthorAsterix
    • CommentTimeNov 28th 2019
     
    Posted By: AngusThey are in two places at once, on the average, as long as you don't look.


    Which brings to mind the title of this album
    •  
      CommentAuthoraber0der
    • CommentTimeNov 28th 2019 edited
     
    The frontmost person on the 1st photograph looks like an Obelisk's sidekick. Coincidence?
  19.  
    Not remotely funny.

    I think my questions are piquant.
    •  
      CommentAuthoraber0der
    • CommentTimeNov 29th 2019
     
    *Opinions may vary.

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