Timeline for Is This Quantum Eraser Video from Fermilab Incorrect?
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 2, 2021 at 5:20 | comment | added | PhysicsDave | With A and B on the separate patterns are visible if the coincidence is done between D0/D3 or D0/D4. One could also just look at D0/D3 and turn D4 off. The detectors D1/D2 never show a pattern when on/off with D0 .... and that's the important distinction for the DCQE. Your question is a little like the simple DSE, if we turn the screen off or don't look at it the pattern still occurring ? If a tree falls in the woods ..... What is an interesting question is "What cause the D3 and D4 patterns to be out of phase?" ..... | |
| Nov 30, 2021 at 0:58 | comment | added | flevinBombastus | I understand that you don't see the patterns because they sum out of phase in a different configuration, namely one where you "erase" the which-way information. But how do you know the patterns occur in this situation with the detectors off, if you can't do the coincidence measurement? Remember that no pattern appears if we were to turn on the detectors. What experiment could you do to prove that assertion? | |
| Nov 29, 2021 at 17:22 | history | answered | PhysicsDave | CC BY-SA 4.0 |