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Feb2313 08:38 AM
ZapperZ

1 
30,380 
At first let's take a look at the eigenvalue problem for the momentum operator in xrepresentation.
i \hbar...

Jan413 10:34 PM
strangerep

11 
1,045 
It had been asked before on physics forums but the given answers didn't convince me .

Jan413 05:22 PM
strangerep

22 
1,994 
It is not hard to show that for QM what takes the wave function from t>t+Δt is the exponential of the hamiltonian....

Jan413 03:20 PM
jfy4

3 
672 
does not occur because the probabilities are of the magnitude of exp, give or take a few decimal places, correct? i.e....

Jan413 01:27 PM
I2004

25 
3,891 
I'm sorry if this has already been completed or already discussed. If so, just link me to answer the question,...

Jan413 07:37 AM
Nugatory

1 
652 
The expansion theorem in quantum mechanics states that a general state of a system can be represented by a unique...

Jan413 04:50 AM
Chain

4 
534 
Hello, is it possible to reproduce the double slit experiment at home with some easily obtainable equipment?
I was...

Jan313 04:11 PM
Pitullie Paul

32 
27,537 
I’ve heard in several places that we must view the spin of subatomic particles not as we would that of a classical...

Jan313 04:09 PM
DiracPool

24 
3,843 
Morrobay suggested we split off this discussion from another thread.
I will post my summary of the EPR definition a...

Jan313 03:44 PM
berkeman

22 
1,669 
Hi there,
I've a few (probably very basic) questions about photonelectron (lightmatter) interactions. Here we go:...

Jan313 10:46 AM
110010

8 
905 
Hi,
Let's say I have a creation operator that creates a photon in some spatial mode. It has a spectral distribution...

Jan313 09:15 AM
McLaren Rulez

2 
444 
I'm a bit confused by something Peskin & Schroeder say about differential cross sections. In my printing, this is on...

Jan313 09:04 AM
alemsalem

4 
799 
I tried looking it up but I can't understand it. Is the graviton some kind of theoretical particle that gives of...

Jan313 08:08 AM
Naty1

22 
1,797 
Hi. First of all English is not my native language and i am a layperson, so I hope i can explain my self.
It is...

Jan313 02:40 AM
bhobba

5 
860 
Have you recently came across and remember titles of papers about real experiments concerning the famous double slit...

Jan213 08:49 PM
Cthugha

3 
883 
Hi,
I am trying to write down the propagator for a scalar field theory, but I want to try and get it in the...

Jan213 11:37 AM
xepma

5 
725 
For Wigner transforming the function of operators x and p : (xp+px)/2 we need to evaluate something like:
g(x,p) =...

Jan213 09:49 AM
aim1732

6 
779 
Consider two hermitian operators A and B.
Imagine a system is in state \psi\rangle ,then we have:
\langle...

Jan213 04:17 AM
dextercioby

49 
4,139 
Hey,
I have the following question on Hermitian operators
http://i.imgur.com/yDaz3.png
Initially I thought...

Jan213 04:05 AM
aim1732

9 
1,017 
Hi all,
One more question about the Unruh effect, i.e., that an accelerating observer will see a vacuum filled with...

Jan113 10:29 PM
asimov42

10 
1,190 
I am just an interested high school physics student so I don't really know much about the subject, but I am given to...

Jan113 05:35 PM
DiracPool

18 
2,488 
Consider a nonrelativistic electron in one dimension, with the potential
V(x)=\left\{
\begin{matrix}
\infty,...

Jan113 04:54 PM
Vanadium 50

10 
1,295 
This has been a contradiction in my brain for some time.
If I want to rotate one nuclei (spin 1/2), with say an...

Jan113 02:40 PM
haibane90

5 
896 
I'm actually quite scared of asking this due to my very basic knowledge regarding Quantum Mechanics. Actually, this is...

Jan113 09:15 AM
dextercioby

7 
1,100 
http://books.google.co.uk/books?id=rcrf0P8DSe0C&pg=PA159&lpg=PA159&dq=how+quantum+field+theory+is+possible+are+field+qu...

Dec3112 10:26 PM
sshai45

3 
831 
I'm attempting to solve the particleinabox problem using Scipy (with the help of...

Dec3112 09:29 PM
Draksis314

0 
507 
I know there are four different forces in the universe and they all affect us.
I know that gravity is the force of...

Dec3112 07:54 PM
dbmorpher

5 
985 
I'm working with flow equations right now and have been stuck on this one part (I'm redoing the work of one of my...

Dec3112 12:40 PM
faceforest

0 
447 
Is there some resource on the net where I can find images of electron orbitals for dihydrogen (H2), helium (He),...

Dec3112 11:29 AM
berkeman

22 
2,286 
I'm just curious, but I've been reading about Transactional Interpretation For some time now and I know about the law...

Dec3112 03:37 AM
andrien

1 
442 
In the two slit experiment when which path information is present there is no wave interference pattern such as would...

Dec3012 01:13 PM
San K

2 
624 
Do you need a magnetic field for EIT, or just two electromagnetic beams with the right attributes?
Thanks,
Jake

Dec3012 10:54 AM
mfb

3 
512 
Is there some fundamental fact of the universe (Quantum Mechanics) that prevents us from removing noise (without...

Dec3012 08:45 AM
San K

10 
946 
It is said that : electrodynamics is a gauge theory for U(1) gauge group . what is its physical concept?...

Dec3012 07:40 AM
andrien

5 
879 
I just came across the following Quote in an introductory Quantum physics book"There are certain experiments in which...

Dec3012 07:20 AM
andrien

3 
614 
Is there still hope for a rational quantum mechanics?
Double slit:
http://www.youtube.com/watch?v=W9yWv5dqSKk
...

Dec2912 10:34 PM
dlgoff

1 
534 
I'm starting to read Brian Cox Quantum Universe. Has anyone read it already? Which part of it could be false? I wonder...

Dec2912 08:11 PM
Tomahoc

0 
563 
I have been looking for experiments demonstrating neutron interferomerty with protons or electrons instead, and found...

Dec2912 04:27 PM
Vanadium 50

5 
593 
Hi.
I have a little question. In some of my books you can read that the author keeps saying that an electron is...

Dec2912 12:56 PM
haael

2 
572 
Hi I was day dreaming the other day when I realized how incomplete and vague the fundamental postulates of QM are, I...

Dec2912 12:42 PM
jfy4

3 
746 