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Feb2313 08:38 AM
ZapperZ

1 
34,636 
Hi
I'm studying for my course of quantum chemistry and I have some issues with applying the Hückel or thight...

Jun1112 07:54 PM
JorisL

2 
1,281 
Matter (deBroglie) waves is a concept and it's existence is not confirmed (?)..that said,
We know that  The de...

Jun1112 12:44 PM
Simon Bridge

3 
874 
<deleted>

Jun1012 08:06 PM
robertjford80

0 
761 
In the fabric of the Cosmos by Brian Greene there is an experiment using the example of Mulder and Scully and boxes....

Jun1012 04:00 PM
Ken G

4 
1,126 
Two spherically symmetric potentials, the Coulomb potential and the isotropic harmonic oscillator potential, lead to...

Jun1012 04:58 AM
A. Neumaier

17 
2,727 
I have read that when 2 Hydrogen atoms come together their individual spacial wavefunctions overlap in the following...

Jun1012 03:44 AM
cgk

1 
984 
how does/would LHV (local hidden variables) theory explain the phenomena of:
1. quantum entanglement swapping...

Jun1012 01:10 AM
San K

3 
1,045 
If we were to introduced a set of unentangled, but same polarized, photons as control experiment what would the...

Jun912 11:58 PM
lugita15

3 
959 
hello. it's the first time I use this site I hope that I find the answer of my question: does the hausdorff formula...

Jun912 11:52 PM
strangerep

2 
996 
Hi all, I have recently been reading the book ``The Method of Second Quantization'' by Felix Berezin but I got trapped...

Jun912 11:26 PM
strangerep

1 
850 
We often just say that the eigenvalues of \hat{L}^2 are \hbar^2l(l+1), but does this apply to all kinds of potentials...

Jun912 03:47 PM
fzero

2 
798 
Schrödinger had proved/predicted QE theoretically prior to experimental (though not loophole free) verification.
...

Jun912 07:09 AM
Simon Bridge

1 
737 
The general evolution of a ket \psi\rangle is according to
i\hbar\frac{d}{dt}\psi\rangle=H\psi\rangle
without...

Jun912 06:59 AM
youngurlee

7 
1,272 
why is the function must be normalize ? what is the meaning of normalization
I know it's ∫ψψ*=1 but what it...

Jun912 02:02 AM
sciboudy

3 
705 
I am interested in knowing that in QM what vector/tensor operators are? In fact how do they differ from scalar...

Jun812 04:41 PM
Bill_K

3 
733 
Electrons paired up in an orbital have antiparallel spins. One rotates in clockwise direction and the other in...

Jun812 03:13 PM
Naty1

4 
1,013 
Hi,
Have there been done variations of double slit experiment, particularly I'm interested in following scenarios:...

Jun812 01:05 PM
Simon Bridge

3 
817 
In the experiments done with superconducting rings by Delft and Stony Brook, currents are shown to be moving in both...

Jun812 04:22 AM
Dadface

63 
6,554 
Hi!
I'am young and am very excited about Physics. I would like to read the research papers written by famous...

Jun812 02:33 AM
M Quack

3 
1,160 
Hello,
not sure if I'm typing the question in the right place, but I encountered this question when going through...

Jun712 03:55 PM
Bill_K

5 
1,089 
I am having troubles finding anything online that reveals the conceptual concerns relating to the probability...

Jun712 02:39 PM
James S Saint

18 
2,141 
First time poster, more of a nerd than an academic.
So virtual particles, can they pop into and out of existence...

Jun712 12:20 PM
FrYYau

5 
871 
Quantum field theory predicts a value for the cosmological constant that is 123 orders of magnitude larger than the...

Jun712 08:10 AM
Sonderval

9 
1,832 
I have some questions concerning the first two chapters of Ginsparg's text on CFT, which can be found here
1. In...

Jun612 05:39 PM
physicus

4 
1,244 
Okay so this is my first post after like 15 min of tying to figure out how to post. Anyways I have been reading about...

Jun612 11:39 AM
juzzy

4 
1,036 
The empirical method of linear combination of atomic orbitals is not hard to understand. There is one thing about this...

Jun612 06:21 AM
Ken G

4 
724 
In regards to measuring two photons in the 45/135 basis using 22.5 wave plates and PBS orientated in the H/V basis:
...

Jun512 11:32 PM
StevieTNZ

0 
551 
Basically I have looked up both out of curiosity and it just flew right over my head. I have a general understanding...

Jun512 07:41 PM
juzzy

1 
1,005 
Well, am an Alevel student... Edexcel.. I just find quantum physics a really really confusing topic.. My question is...

Jun512 05:40 PM
Matterwave

4 
540 
Wikipedia defines a field as "a physical quantity associated with each point of spacetime". So contrary to a particle,...

Jun512 03:43 PM
A. Neumaier

10 
1,691 
I explained to myself that I don't fall through the ground due to electrons repelling. Using classical electrostatic...

Jun512 03:19 PM
unusualname

6 
1,577 
talking about ψepistemic, ψontic and ψcomplete models.
How would the world appear to us if its ontology was...

Jun512 03:15 PM
DrChinese

7 
1,542 
Hi all,
There is a Hamiltonian in terms of "a" and "a^{dagger}"bosonic operators...

Jun512 11:23 AM
Bill_K

2 
993 
if vacuum has virtual particles it should have temperature right.? If a perfect vacuum exists ie without any virtual...

Jun512 02:14 AM
Ger

3 
868 
This is, when it all comes around, just math. I am asked to prove that if the schroedinger equation looks like:
...

Jun412 11:48 PM
freddyfish

2 
1,588 
I have read in different places something like the following:
Hermitian operators have real eigenvalues
Hermitian...

Jun412 06:34 PM
Matterwave

1 
958 
Hello,
I have a problem with the two seemingly conflicting descriptions of the energy transfer from a photon to an...

Jun412 05:59 PM
kapitan90

4 
1,841 
I couldn't find out if the following article had been discussed (it is probably well known), but there were many...

Jun412 04:28 PM
yoda jedi

7 
1,160 
I doing some reading on why the wavefunction is complex. From what I can tell, it's due to its evolution by unitary...

Jun412 01:21 PM
friend

4 
1,069 
I believe that in qft the particle states are eigenvectors of the Hamiltonian(which also commutes with the number...

Jun412 11:47 AM
A. Neumaier

16 
1,987 