The quantum source of space-time

Post by joshus » Mon, Nov 16, 2015, 4:51 PM UTC

Post by aptwebapps » Wed, Nov 18, 2015, 6:40 AM UTC

crontumCombudor wrote: post #2

Entanglement lets the measurement of one particle instantaneously determine the state of a partner particle, no matter how far away it may be — even on the other side of the Milky Way. Big deal. If I have a bag of coins, and I take out all of the copper coins, it's not very mysterious that the bag now contains only silver coins, no matter whether I hide it under my bed, or in the freezer, or hang it out the window. Y…

Post by aptwebapps » Wed, Nov 18, 2015, 6:53 AM UTC

crontumCombudor wrote: post #4

aptwebapps wrote: post #3

Earlier quoted context omitted.

If you could put the bag into the all-silver state after leaving it across town by taking all the silver coins out of another bag, that would be a big deal.

So magnetize a sample of iron as a permanent magnet, cut the sample in half, send the second half to the moon, and re-polarize first half here on earth, and show me that it's lunar partner has spontaneously re-magnetized itself in agreement with its earthbound phantom amputated Siamese twin. And then back again, ad infinitum.

Post by crontumCombudor » Wed, Nov 18, 2015, 6:57 AM UTC

aptwebapps wrote: post #5

crontumCombudor wrote: post #4

Earlier quoted context omitted.

So magnetize a sample of iron as a permanent magnet, cut the sample in half, send the second half to the moon, and re-polarize first half here on earth, and show me that it's lunar partner has spontaneously re-magnetized itself in agreement with its earthbound phantom amputated Siamese twin. And then back again, ad infinitum.

Is this all a round about way of saying you don't believe in quantum entanglement? Because that would be simpler and I wouldn't bother arguing.

Post by crontumCombudor » Wed, Nov 18, 2015, 7:02 AM UTC

titanomachy wrote: post #6

crontumCombudor wrote: post #2

Entanglement lets the measurement of one particle instantaneously determine the state of a partner particle, no matter how far away it may be — even on the other side of the Milky Way. Big deal. If I have a bag of coins, and I take out all of the copper coins, it's not very mysterious that the bag now contains only silver coins, no matter whether I hide it under my bed, or in the freezer, or hang it out the window. Y…

I also went through a phase where quantum entanglement seemed mundane and easily explained. However, I realized that this was merely because I was taking the analogies too literally. The key difference between a bag of coins and a microscopic quantum system is that the contents of the bag before being observed is unknown , whereas the quantum state is actually indeterminate . By observing one entangled particle, you…

  By observing one entangled particle, you force the 
  other to also take on a definite state.