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Feb2313 08:38 AM
ZapperZ

1 
30,401 
I'm not clear as to how the overall interference pattern (or lack thereof) observed in the quantum eraser experiments...

Apr1813 06:46 PM
msumm21

6 
630 
With reference to the following lecture by Leonard Susskind :...

Apr1813 02:14 PM
dextercioby

1 
436 
If I use hydrogenlike orbitals for other atoms, how are the number of nodes and probability density affected?

Apr1813 12:01 PM
cgk

2 
448 
It is often said that the photon is the long range force carrier like the static force between electrons. Lets say we...

Apr1813 11:48 AM
ftr

2 
579 
Also how can local causality be violated?

Apr1813 09:52 AM
DrChinese

1 
370 
Hi I am teaching myself QFT using peskin and schroeder and have a few problems
1) On page the author goes from \int...

Apr1813 09:49 AM
pleasehelpmeno

0 
360 
Hi Guys
For all people interested in Schrodinger's Cat check out Leonard Susskind's explanation  very lucidly...

Apr1813 09:47 AM
bhobba

0 
522 
Dear all,
I am working on 8 band k.p model and I am intrested in the way of derivation of explicit analytical...

Apr1813 08:41 AM
aziziph

0 
365 
The principle states: δxδp≥h/4π
I understand what it means and ive seen in proven both theoretically and...

Apr1713 08:00 PM
fluidistic

4 
647 
In its standard formulation, the CPT theorem says that any local Lorentzcovariant quantum field theorem will be...

Apr1713 07:22 PM
LastOneStanding

2 
482 
Why did Max Planck refer to his own radiation law...

Apr1713 05:07 PM
LayMuon

1 
768 
In the one moment you accept something in the other you're not sure why? Why probability density in quantum mechanics...

Apr1713 12:14 PM
ttakacs

11 
1,175 
I am very confused by the treatment of Peskin on representations of Lorentz group and spinors.
I am confronted with...

Apr1713 10:29 AM
silverwhale

13 
983 
I can't seem to find a definitive answer to my questions surrounding this topic, every textbook I read is rather...

Apr1713 09:47 AM
fzero

4 
546 
What is the quantum of an electromagnetic wave? Quantum of light is photon. What is the quantum of a gamma ray or an...

Apr1713 06:53 AM
L4xord

4 
527 
Hi guys having a little trouble with twoqubit state multiplication.
Could you tell me how you work out the...

Apr1713 05:32 AM
kith

5 
514 
The Wigner function,
W(x,p)\equiv\frac{1}{\pi\hbar}\int_{\infty}^{\infty}
...

Apr1713 05:01 AM
Bill_K

6 
684 
Hi all! I was reviewing some basic quantum mechanics, and I was trying to 'derive' the equation
i \hbar...

Apr1613 06:38 PM
BruceW

8 
763 
We know electric current travels around 200000 km/s.. Yet electrons are moving way much slower, just acting as a...

Apr1613 04:34 PM
ExecNight

4 
570 
As an atmospheric physics major I am familiar with electromagnetic radiation in the atmosphere and what dictates what...

Apr1613 03:06 PM
Naty1

5 
769 
In the chapter on partial wave analysis in Griffiths's Introduction to Quantum Mechanics, he considers a spherically...

Apr1513 08:33 PM
Meir Achuz

4 
833 
Reflection/refraction of light is due to the absorption of photons by electrons in the governing atoms, and is then...

Apr1513 08:29 PM
Meir Achuz

4 
467 
My question is probably simple answer but google and everybody else i've asked didn't know. Because of friction there...

Apr1513 06:34 PM
Einstein1999

2 
439 
I am trying to calculate the functional for real scalar field:
W = \int \mathcal{D} \phi \: exp \left \right]
...

Apr1513 10:26 AM
LayMuon

1 
544 
I've found many articles online that explain how to solve the Schrodinger equation for a potential dependent on x, but...

Apr1513 07:29 AM
DrDu

4 
779 
I understand that the variational method can give me the "best" approximate ground state wavefunction among the class...

Apr1513 06:27 AM
DrClaude

1 
384 
I understand that electromagnetic radiation is a photon. But one thing that is continuing to bug me is the question...

Apr1513 05:56 AM
tom.stoer

3 
434 
In special relativity we have the relation that for a free particle
E^2 = \vec p^2 + m_0^2
and that also hold...

Apr1513 04:36 AM
DarMM

1 
413 
I'm skeptical of something Neil Turok said, having to do with quantum information.
...

Apr1413 11:59 PM
gendou2

6 
655 
Hi PF members,
I am stuck with a problem about larmor precession. I cannot find the eigenstates of the hamiltonian...

Apr1413 11:20 PM
The_Duck

9 
597 
We know that  mass bends spacetime  this is known as gravity
We also know that  (interaction with) Higgs fields...

Apr1413 12:00 PM
mfb

1 
479 
hello everyone
today im curious about
" is there relation between double slit and compton??" my friend said there...

Apr1413 11:57 AM
mfb

1 
310 
Hello PF members,
I am trying to solve for helium atom ground state by using perturbation theory. It is very easy...

Apr1413 11:34 AM
ycheff

1 
455 
Hi there
Iive been reading the intro chapter to Peskin and Schroder's 'An intro to QFT'
I have a question...

Apr1413 10:46 AM
Soph_the_Oaf

9 
735 
I have a problem which asks me to calc uncertainty in position..with the help of uncertainity in wavelength, energy n...

Apr1413 06:30 AM
Vanadium 50

1 
298 
If the uncertainity in position is equal to de broglies wavelength ..den is the uncertainity in velocity equal to the...

Apr1413 05:26 AM
darkfall

3 
313 
The photon as I understand it is a massless particle that "must" travel at the speed of light.
However I do not...

Apr1413 05:01 AM
tom.stoer

4 
453 
Greetings all. I'm a new poster here but have spent some time on philosophy forums previously. I subscribe to New...

Apr1313 08:58 PM
bhobba

220 
13,130 
I'm studying electron spin/magnetic field and I was taught electrons can have only 2 spin orientations, as seen in the...

Apr1313 08:12 PM
phyzguy

19 
1,228 
Currently doing AS physics and have come across De Broglie's equation: λ = h/p
Combining this with the idea that if...

Apr1313 05:57 PM
frankhawes

0 
363 