Timeline for if observing entangled particles causes the entanglement to break, how do we know that they were ever entangled?
Current License: CC BY-SA 4.0
9 events
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| Aug 22, 2018 at 0:23 | comment | added | user4552 | I also know that when we observe particles, we break the entanglement. Maybe this is so in the Copenhagen interpretation. In the many-worlds interpretation, all that happens is that the observer becomes entangled as well. | |
| Aug 22, 2018 at 0:06 | answer | added | PhysicsDave | timeline score: 0 | |
| Aug 21, 2018 at 23:50 | comment | added | PhysicsDave | Certain special materials/atoms when stimulated (by a photon) will emit 2 photons ( of lower energy of course ) that are of opposite polarization. Thus these photons are related to each other and the word we use is entangled. If you used this material and create photon pairs ( they emit in opposite directions ) they you have entangled photons. Scientists were excited, by measuring/destroying one photon you knew info about the other. Historically anytime we had info on a photon we had destroyed it, the remaining entangled photon is undestroyed yet we know its polarization! | |
| Aug 21, 2018 at 15:46 | answer | added | S. McGrew | timeline score: 0 | |
| Aug 21, 2018 at 15:14 | comment | added | Norbert Schuch | If as soon as you spend money the money is gone, how to you know you ever had money? | |
| Aug 21, 2018 at 15:00 | history | edited | user191954 | CC BY-SA 4.0 |
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| Aug 21, 2018 at 14:51 | answer | added | Job Stancil | timeline score: 1 | |
| Aug 21, 2018 at 14:50 | review | First posts | |||
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| Aug 21, 2018 at 14:48 | history | asked | Jonah Cordell | CC BY-SA 4.0 |