Timeline for Wave Function for a Step Potential
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 27, 2021 at 12:14 | comment | added | Roger V. | To say that particle crossed the barrier, one needs to know its position and momentum - it is not possible for classical particle. If we compare with theelectromagnetic field, then within the barrier we have an evanescent wave - the amplitude is non-zero, but the wave is not propagating (evanescent wave is actually more precise term than stationary wave) | |
| May 27, 2021 at 12:09 | vote | accept | Anshul Sharma | ||
| May 27, 2021 at 12:09 | comment | added | Anshul Sharma | So doesn't that means particle never crossed the barrier. And wave not propagating means that T=0 means, no wave is present or T=0 means no particle is present. Also how can we correlate to stationary wave. Also Stationary wave concept how are using it here can you explain a bit more. | |
| May 27, 2021 at 12:02 | comment | added | Roger V. | If the wave function is real, the momentum is zero - there is no flux, i.e., the wave is not propagating. One could think of it as a stationary wave. | |
| May 27, 2021 at 12:00 | comment | added | Anshul Sharma | As said, If the wave after say x>0 is not propagating, but we see the probability of finding the particle, i cant just get this thing in my head physically. I know for real wave function current density is always 0, but if you can justify my doubt would be much more clearer. | |
| May 27, 2021 at 11:45 | history | answered | Roger V. | CC BY-SA 4.0 |