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If you are seeking help with a...

Feb2313 08:38 AM
ZapperZ

1 
34,589 
How did someone came up with the idea that , an outcome doesn't exist until we really observer it?
How did that...

Jul312 10:11 AM
al onestone

25 
1,729 
what is the difference between first and secondtype bessel functions?

Jul312 08:48 AM
Simon Bridge

1 
424 
when a wavefunction splits into two paths (such as in a double slit or a machzehnder) how does the Schrodinger...

Jul312 07:06 AM
Simon Bridge

10 
1,130 
Had some questions about wavefunctions. Some of the questions might be invalid due to limited knowledge of the OP.
...

Jul312 07:04 AM
Simon Bridge

21 
2,557 
In single particle interference experiments:
what, besides probability amplitude, splits at the slits?
don't...

Jul312 06:53 AM
Demystifier

2 
684 
wavefunction is a probability amplitude in quantum mechanics describing the quantum state of a particle and how it...

Jul312 06:27 AM
Simon Bridge

1 
482 
Hi everybody,
I apologize for my trivial question, I'm reading a paper by Freedman and Kitaev and, when describing...

Jul312 02:43 AM
gioialorusso

2 
1,833 
1) What is mean by fermion with half integer spin and boson with integer spin
Is that fermion, 1/2,3/2...
boson,...

Jul312 01:19 AM
Einj

4 
906 
Quantum laser diodes.
How does light escape?
I recently became very interested on the functioning of these amazing...

Jul212 10:18 PM
manueldois

3 
1,802 
hello
i have question : how the superposition principle proves continuity of ψ in potential barrier

Jul212 08:18 PM
Naty1

5 
630 
Hi,
I've been reading a QM book and it mentions that particles can be represented as a wave packet, which provides...

Jul212 04:24 PM
Nugatory

3 
554 
Is there some way to approximate the density of entangled particles in space?

Jul212 12:32 PM
mt3209

0 
245 
Hi
I would like to know if I have a system of coupled harmonic oscillators whether the standard position operator...

Jul212 07:42 AM
mtak0114

0 
403 
For the photoelectric effect, when light hits a metal, and the frequency is above the work function, electrons are...

Jul212 03:48 AM
M Quack

2 
526 
It is said that the solutions of the KleinGordon equation cannot be interpreted as probability densities since the...

Jul212 02:38 AM
Demystifier

2 
496 
I'm looking for the BEST and most COMPLETE book describing
 The quantum mechanics of the hydrogen atom (working...

Jul112 05:03 PM
Bill_K

2 
609 
I am having hard times, trying to find out how the FermiDirac and BoseEinstein distributions give you at a limit the...

Jul112 02:19 PM
Bill_K

1 
422 
When a photon has a wavelength close to the energy needed for an electron jump in an atom, the atom will absorb the...

Jul112 01:08 PM
Hells

2 
638 
Does Pauli's exclusion principle apply to superposition or only collapsed states?
I.e. could a particle be...

Jul112 11:58 AM
Mukilab

7 
774 
A particle in the ground state of a potential well can only gain energy by making a transition to one of the higher...

Jul112 07:39 AM
tom.stoer

5 
883 
Can someone please elaborate these lines:
"Causality applies only to a system which is
left undisturbed. If a...

Jul112 12:52 AM
San K

13 
2,697 
What is the difference between eigenfunction and wave function?
I'm always get confused when i am asked to write...

Jul112 12:38 AM
Simon Bridge

4 
1,022 
Almost everyone is familiar with the sentence "accelerated charges radiate em waves".
Nevertheless, if you are...

Jun3012 08:56 PM
Dickfore

6 
1,007 
Alright. So the Dirac Eq is
(i \gamma^{\mu} \partial_{\mu}  m) \psi = 0
or putting the time part on one side...

Jun3012 06:56 PM
geoduck

7 
1,389 
I have just watched a video by Professor Brian Cox. In it he describes the proposed Higgs field. If it exists, it is...

Jun3012 05:20 PM
Nabeshin

3 
749 
If the Higgs field is responsible for embuing particles with mass, and mass is responsible for gravity, is it possible...

Jun3012 04:13 PM
Parlyne

2 
938 
I am aware that n is the principal quantum number and determines the energy of a specific energy level of an atom. In...

Jun3012 03:20 PM
Einstein Mcfly

4 
1,737 
Do free particles have quantum numbers? What are they?

Jun3012 12:12 PM
xz5x

2 
559 
Hi all! I'm sorry if this question has been already asked in another post...
I'm studying the path integrals...

Jun3012 05:02 AM
Einj

2 
950 
Hi, i can't get the result stated as equation (2.33) in page 22. To be more clear, after the elimination of the...

Jun3012 02:41 AM
dazhuzai8

1 
772 
Hi physicists,
How can two atomicscale particles interact through gravitation (Gm1m2/r^2) or any other force that...

Jun3012 12:00 AM
Simon Bridge

4 
888 
Hi,
could anyone try to explain one thing about the Heisenberg Uncertainty Principle I don't understand?
The...

Jun2912 02:45 PM
Muphrid

10 
1,252 
In the doubleslit experiment, without whichpath information available, the diffraction pattern is usually shown as...

Jun2912 01:00 PM
cygnet1

2 
700 
What are the differences between the probability density function and the radial probability density functions (in...

Jun2912 09:16 AM
CAF123

0 
621 
I'm wondering because the gamma ray photon is smaller yet it has a higher frequency. Is it because the amount of...

Jun2912 07:23 AM
Naty1

17 
8,848 
A quantum particle can tunnel through a barrier and we can describe why this is so by the uncertainty principle....

Jun2912 05:31 AM
ZapperZ

5 
814 
Hello dear readers,
I have a problem. I'm giving a lecture tomorrow on the EPR experiment and Bell's theorem and so...

Jun2912 05:29 AM
Tomer

13 
1,360 
Hello, I'm trying to solve a time independent schrodinger equation with matlab. i wish to write a function whose...

Jun2912 03:14 AM
farzin22

0 
1,964 
What do you think the word "photon" used in textbooks and papers at present mean?
 extended object which, when...

Jun2812 07:35 PM
D H

19 
1,368 
what we mean by uncertainty in energy in quantum tunneling ? it's hard to understand uncertainty principle

Jun2812 03:55 PM
sciboudy

0 
449 