Timeline for Same photon or different photon?
Current License: CC BY-SA 3.0
26 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 12, 2017 at 12:35 | comment | added | The_Sympathizer | @Nathaniel: Do any of the answers posted so far satisfactorily answer that question, i.e. why the question is self-contradictory? | |
| May 13, 2016 at 10:31 | history | tweeted | twitter.com/StackPhysics/status/731069457406267392 | ||
| May 12, 2016 at 7:45 | answer | added | Guill | timeline score: 1 | |
| May 6, 2016 at 13:56 | comment | added | JimmyB | How about asking if the wave leaving the lens is the same or a different wave that entered the lens? - The answer to this question is the same as to the OP's. | |
| May 6, 2016 at 9:25 | comment | added | N. Virgo | Seems to me that people are voting to close because they know the answer. The fact that the question is ultimately self-contradictory is a highly non-trivial one, and both the original asker and future visitors will gain a lot by learning in detail why this is the case. Hence this is a good question, a useful question, and a good question to have on the site. The desire to lose it is purely due to the "hobgoblin of little minds." | |
| May 5, 2016 at 20:39 | comment | added | OrangeDog | Surely this is two questions? | |
| May 5, 2016 at 13:31 | history | edited | Qmechanic♦ |
edited tags
|
|
| May 5, 2016 at 13:30 | history | protected | Qmechanic♦ | ||
| May 5, 2016 at 12:22 | vote | accept | atom | ||
| May 5, 2016 at 11:23 | comment | added | atom | @trichoplax: I don't know why do you mention absorption and emission. Question is whether photon entering the lens is same as that coming out of lens and second part of the question is how photon is "focussed" on detector. | |
| May 5, 2016 at 11:01 | history | edited | ACuriousMind♦ | CC BY-SA 3.0 |
Removed meta-fluff; grammar fixes, in particular missing articles
|
| May 5, 2016 at 8:40 | answer | added | anna v | timeline score: 21 | |
| May 5, 2016 at 8:37 | comment | added | CuriousOne | @AnubhavGoel: Then that's what the OP should have asked. | |
| May 5, 2016 at 8:33 | answer | added | unsym | timeline score: 10 | |
| May 5, 2016 at 8:24 | comment | added | Anubhav Goel | @CuriousOne By 'same', I think, OP means "does it have same amount of energy hv." | |
| May 5, 2016 at 7:58 | answer | added | John Rennie | timeline score: 11 | |
| May 5, 2016 at 7:57 | comment | added | CuriousOne | @AnubhavGoel: It's not about that, at all. It is simply about there being no logical way to get from "One photon here, one photon there." to "It's the same photon.". The phrase "the same" requires means to distinguish individual objects, which, for photons, don't exist. | |
| May 5, 2016 at 7:55 | comment | added | Anubhav Goel | @CuriousOne Means "Today's modern technology is able to produce single-photon light source." is wrong | |
| May 5, 2016 at 7:41 | comment | added | CuriousOne | Even when you have just one photon you don't know that it's the same photon. I can make two urns for you and hand you a white ball to put into the first urn. Then I ask you to pull a ball out of the second. It's white... is it the same ball? | |
| May 5, 2016 at 7:37 | comment | added | atom | @CuriousOne: When I have single photon, there is no question of distinguishing it from another photon. So your comment makes no sense, I guess. Once you have single photon, the question is what happens to that single photon when it passes through lens and comes out of that lens. | |
| May 5, 2016 at 7:36 | review | Close votes | |||
| May 5, 2016 at 23:44 | |||||
| May 5, 2016 at 7:34 | comment | added | CuriousOne | @AnubhavGoel: It means that something that can not be individualized can not be an individual? | |
| May 5, 2016 at 7:34 | comment | added | Anubhav Goel | @atom It depends on chaos. It may come out same or may not come out at all or come out with reduced frequency. It also depends on frequency of photon emitted. | |
| May 5, 2016 at 7:32 | comment | added | Anubhav Goel | @CuriousOne What does it mean? | |
| May 5, 2016 at 7:22 | comment | added | CuriousOne | Can you write your name on that photon? If you can't, the entire question makes no sense. | |
| May 5, 2016 at 7:17 | history | asked | atom | CC BY-SA 3.0 |