Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

General Discussion

ljm2002

(10,751 posts)

16. I don't think that's it...

Reply to Kablooie (Reply #8)

Fri Mar 8, 2013, 11:28 AM

Mar 2013

...because the way they test the hypothesis is to spin one of the particles one way, and then test the other particle to determine its spin. The second particle's spin has to be the opposite direction in order to preserve the relationship of the two particles and prove they affect each other even though they have been split off from one another.

Of course there's more nuance to the experiment than that, but the main thing is, if it was one particle then both would have the same spin when measured; while the positive result of the experiment depends upon them having opposite spin when measured.

Edit history

Please sign in to view edit histories.

33 replies

= new reply since forum marked as read

Highlight:

physicists measure speed of Einstein’s ‘spooky action at a distance’: At least 10k x speed of light [View all] The Straight Story Mar 2013 OP

Such speeds would actually make interplanetary travel outside our Solar system somewhat more apocalypsehow Mar 2013 #1

such speeds make time travel possible, for information at least MjolnirTime Mar 2013 #2

+186,282. apocalypsehow Mar 2013 #3

Wouldn't that be strange. sofa king Mar 2013 #30

Acceleration would be a big problem Fearless Mar 2013 #9

Says you Duer 157099 Mar 2013 #22

according to the Copenhagen interpretation, it HAS TO BE instantaneous. Warren DeMontague Mar 2013 #4

Exactly. RagAss Mar 2013 #23

So if I'm understanding this right... white_wolf Mar 2013 #5

Its rather that the concept of space doesn't apply to quantum entaglement bhikkhu Mar 2013 #6

That's what I'm getting from all of this too. As Spock would say, "Fascinating.".... OldDem2012 Mar 2013 #7

Yup! burrowowl Mar 2013 #21

Nope, that would be incorrect. longship Mar 2013 #10

Quantum teleportation cannot be used to transmit information. redgreenandblue Mar 2013 #12

Well, you know what sammie hagar once said... Javaman Mar 2013 #13

Could it be that the two entangled particles are actually the same particle? Kablooie Mar 2013 #8

+1 bigtree Mar 2013 #15

I don't think that's it... ljm2002 Mar 2013 #16

I always liked that idea. hunter Mar 2013 #17

It is not a great analogy, but think of marbles Thor_MN Mar 2013 #11

That's not the way it works though. hunter Mar 2013 #14

But then there isn't much distance the way you do it.... Reread what I posted. Thor_MN Mar 2013 #19

Except it's not. The state of each particle is undefined until the state of one has a consequence. hunter Mar 2013 #20

I said it wasn't a perfect analogy in the first post, you may have missed that. Thor_MN Mar 2013 #25

The double slit experiment with individual electrons suggests the marble is gray. hunter Mar 2013 #29

You have done a double slit experiment with marbles? Thor_MN Mar 2013 #33

They are like twins or soul mates who have an inverse reaction to each other's experiences? Jamastiene Mar 2013 #18

Time and space are properties of perception. Not real entities. RagAss Mar 2013 #24

I believe its instantaneous DCBob Mar 2013 #26

And I believe it is not instantaneous 1-Old-Man Mar 2013 #31

Far out, but not out of sight Berlum Mar 2013 #27

Argh! This makes my head hurt! Hulk Smash Mar 2013 #28

Actually, it's more like they FAILED to measure the speed. nt. MineralMan Mar 2013 #32