Added: 1 year ago
From: QuantumPieBlog
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  • Those were kings, not jacks :[

  • Magician's sleight of hand at 2:27. It's so fast it looks like a flash. No chance of catching that without video.

  • 1. I really wish you would have gone into more detail about what the effects on the atom could do (in the molecule in which it is currently housed) caused by its remote formerly entangled counterpart.

    2. What do you think the implications are (if you think there are any) for a pair of entangled atoms that now reside in a pair of people?

  • How can we do that card trick? That was sweet.

  • the "transcribe is not ncessarily over the video it is sufficent also a part and printable"

  • Hate to burst your bubble but doing whatever to one of the entangled particles immediately breaks the supposed entanglement, so no, you don't manipulate one entangled particle and manipulate the other over distance.

  • @avrilinblood This is the one line in the video I wish I had clarified. Strictly speaking, one can still manipulate either of the entangled particles (unitary operations) and still maintain the entanglement and correlations. This is done all the time. It is only when measuring one of the particles that the entanglement is removed (traced out). If one believes in collapse, then measuring one of the particles instantaneously collapses the state of the other. Sorry for the confusion.

  • @QuantumPieBlog there was this very recent news somewhere, where this university has managed to keep the particles entangled for one hour.

  • @QuantumPieBlog I suppose that's the problem. I don't believe in collapse. I didn't in college and I don't today. To me, the wrong interpretation of QM was made a long time ago, and now we're spending a lot of resources trying to create quantum entanglement info (i.e. comms and logic) devices, but I haven't ever seen any papers showing this to be valid. Where can I find an example of the exchange of bits??? Message Security - absolutely! Info transfer - erroneous assumptions! Reference please.

  • please how could I get the transcript of then audio?

  • @giuseppe92205 I will try and transcribe the audio in the video. It will take some time though.

  • I assume arbitrary numbers of atoms across the universe can be entangled at the same time, right? So far, all the online YouTube lecture videos on this subject demostrate the concept with only 2 atoms or molecules.

  • @mphello

    Why would you ASSUME that arbitrary numbers can be entangles? There's a REASON why all the YouTube lectures deal with 2 particles (NOT MOLECULES) are used in the demos.

  • @frazzzer8888

    And what is that reason?

    I assumed that arbitrary numbers of particles can be entangled - even though I'm sure the probability of seeing this happen goes down super-exponentially with the number - only as a general principle that the laws of physics have to be the same everywhere and regardless of the numbers of particles.

  • You said you could take the two molecules to opposite ends of the universe and anything you did to the one molecule, would instantly affect the other molecule. Wouldn't the components of that interaction then move faster than light?

  • @RBBlues The effect would be much faster than the speed of light. How can that be since nothing can travel faster than light? But you are thinking in an Einsteinian frame of reference. The effect is not "traveling" in the sense that matter or energy does. The quantum world cannot be analyzed in the same way our physical world can be. In the quantum world, something can be here, or there, or both places simultaneously. In the quantum world, an effect can occur instantly without delay.

  • @RBBlues There could certainly be some non-local (faster than light) influence happening. The trick is that there is no information transmitted. Strictly speaking what is forbidden by relativity is the communication of information faster than the speed of light. The kind of non-local correlations in entanglement cannot be used to send a message or information faster than light. This seems like a strange concept, but is well studied. Look up "Bell Inequalities" for more information.

  • @QuantumPieBlog

    "The trick is that there is no information transmitted." Your video directly contradicts this statement with several examples around the 1:30 mark. I don't normally criticize folks who put themselves out there doing science education for the lay public, but I have to say that this video sheds no light whatsoever on what quantum entanglement is, even in the places where it's not actively wrong.

  • This vid rocks!!

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