Timeline for How can the electric and magnetic fields be non-zero in the absence of sources?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 21, 2023 at 3:05 | comment | added | Neil Libertine | Field is either divergence or curl and which is zero in absence of field. So your photon can ionize through which it passes. | |
| Nov 7, 2022 at 0:14 | vote | accept | Caio Cesar | ||
| Jan 31, 2023 at 18:13 | |||||
| Nov 6, 2022 at 23:33 | comment | added | Miyase | @rafaelcastrocouto Yes. Your question is mathematical in nature, and those equations require boundary conditions to have a solution. Within classical electromagnetism, of course there won't be anything if the universe is empty. Keep in mind, however, that things are more complicated if you move to quantum electrodynamics. | |
| Nov 6, 2022 at 17:43 | comment | added | rafaelcastrocouto | wave coming from far away ... you mean like from a source? | |
| Nov 4, 2022 at 20:35 | vote | accept | Caio Cesar | ||
| Nov 7, 2022 at 0:14 | |||||
| Nov 4, 2022 at 17:05 | vote | accept | Caio Cesar | ||
| Nov 4, 2022 at 17:06 | |||||
| Nov 4, 2022 at 12:48 | history | answered | Miyase | CC BY-SA 4.0 |