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Quantum Physics

- Mathematical description of the motion and interaction of subatomic particles. Quantum Mechanics & Field Theory
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Jan16-12 Greg Bernhardt
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Feb23-13 08:38 AM
1 36,181
We will not get an interference right? Why? Because the electron interacts with the system? Or the "measurement"...
Nov1-08 08:03 AM
2 2,794
If you fire electrons, one after the other, at a double-slit, and let them hit a wall, you get light and dark bands. ...
Jul2-09 11:25 AM
0 653
From my understanding, when solving the hydrogen atom (getting the wavefunction of the electron) in introductory...
Oct30-11 10:47 AM
2 1,190
Hi Everyone, I was reading this post here...
May28-06 10:40 AM
14 1,923
Why do electrons have more energy the further they are from the nucleus?
Aug27-10 05:13 PM
8 1,871
I'm stuck on a pretty basic concept. I'm thinking in terms of the Bohr model, which I know is rather archaic now, but...
Apr26-10 02:11 PM
9 1,506
When an atom absorbs a photon of light and gets into an excited state, can it ever make a single jump back down to the...
Oct16-13 02:50 PM
3 814
A quick question. Not an expert in physics, so my question will be rudimentary.-----An isolated electron and proton...
Nov7-11 09:45 PM
2 1,329
Are lower energy electron orbitals always closer to nucleus than higher energy orbitals? Is this energy proportional...
Y 09:51 PM
18 513
It it being debated whether Electromagnetically Induced Transparency (EIT)/Coherent Population Trapping (CPT) can stop...
Jan8-13 07:50 PM
0 587
With Electromagnetically Induced Transparency/Coherent Population Trapping, is it possible to prevent an atom or...
Jan9-13 03:10 AM
19 1,324
The wave function of an electron in ground state hydrogen atom is non-zero at points far away from the nucleus. ...
Sep28-13 04:59 AM
8 1,144
Oct28-08 01:09 PM
7 2,662
Hi, I'm studying the wave nature of particles. My book says that the de broglie wavelength of an electron is h /...
Dec1-09 10:48 AM
4 1,623
According to Pauli principle, it is impossible for two electrons in the electron gas to have the same state. on the...
Mar15-12 02:02 PM
18 2,322
Lets say I have a spin-1/2 particle that is about to enter a non-constant B field. the spin 1/2 particle has a state...
Mar25-13 04:49 AM
1 538
Hello. I have recently been introduced to the concept of electrons as standing waves around the atomic nucleus. The...
Aug24-10 07:41 PM
3 2,039
Hi! Let's suppose an electron in a mono-dimensional potential well. According to Heisenberg uncertainty principle, if...
Jun25-09 06:11 AM
18 1,782
hi, I'm new on this forum, and I don't know english very well (sorry). maybe you can clarify me about this doubt. an...
Jan28-08 06:46 AM
7 1,865
I know that electrons do not exist in orbitals, but instead in probability density clouds around the atom. I know that...
Dec20-09 01:13 PM
7 3,446
What energy do electrons poses in atoms?
Aug27-04 08:25 AM
7 1,808
Hi, Movement of an electron in constant magnetic field, according to semiclassical QM, give rise to Landau levels -...
Sep1-10 03:36 PM
1 1,402
I had a physics exam today in which we were presented with a model of a hydrogen atom with a single electron orbiting...
Jan2-08 08:24 AM
9 10,590
So i was watching Susskind lectures on entanglements and there he...
Nov20-12 07:58 AM
1 971
Hφ(x) =((p2op)/2m + V(x))φ(x) = (-hbar2/2m.d2/dx2+ V(x)φ(x) = E φ(x) This equation is supposed to relate to an...
Oct30-08 01:41 AM
7 1,981
According to spin quantum number, the spin value of electron pair is taken as +1/2 and -1/2. Why should we take...
Mar30-10 03:42 AM
3 746
Hi, I wanted to know the answer to this riddle: You have two electrons with unknown spin both inside two...
Nov11-06 04:20 AM
42 3,245
Hi, I have problem with electron interference in double-slit experiment.Does the electron pass two slit at the same...
Sep3-08 12:12 PM
3 2,721
Hi everyone !! I have this a question about electron, is it a particle or is it a wave, or maybe both sometimes...
Apr4-13 11:06 AM
26 2,007
I know an electron behaves like wave. I want to know what the means of this "wave"? electron wave is electromagnet...
Dec7-12 09:06 AM
7 952
How many time take to the electron to "Travel" from a lower orbit to a higher one? does it take the same time to...
Mar27-06 09:00 AM
2 2,971
1) Is there any way that we can trace the path of an electron in an electron cloud (surrounding an atom). I know we...
Jun11-05 03:19 AM
11 6,822
okay, here goes. Electron A moves through a vacuum. There are quantum fluctuations ocurring all the time, some...
May9-13 10:25 AM
15 1,184
So far I have found two completely different values of the electron magnetic moment and i need help to know in which...
Mar18-08 06:12 AM
Hans de Vries
9 5,403
I was reading the Wikipedia article on Electron magnetic dipole moments and it mentioned that the "g-factor" is need...
May17-12 05:16 PM
1 733
if we need study particles of diameter about 0.1*(10^-6) m , what should be the de Broglie wavelength of the electron?
Apr14-04 08:01 AM
0 1,074
Why should the wavelength be roughly the size of (or smaller than) the object we want to study in an electron...
Nov12-11 06:58 AM
0 1,149
In a p-orbital how does an electron travel from lobe to another if it must cross the nodal plane which has no electron...
Aug27-10 06:39 AM
9 3,214
Electrons in an atom can only be in orbitals embedded in specific energy levels. So, what is the motion of an...
Sep25-04 07:34 AM
4 1,755
im having some issues understanding the way electrons orbit a nuclies. i know they dont orbit hte nuclies in a circle...
Apr12-10 01:09 PM
5 1,748

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