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Feb2313 08:38 AM
ZapperZ

1 
35,502 
Hello all
I've been reading about the quantum vacuum plasma thruster. On the surface it sounds great. My question...

Sep512 11:18 AM
DrChinese

1 
2,363 
How can quantum physics applied in our daily life?

Feb2007 02:37 PM
ZapperZ

7 
2,363 
Why is it that we assume that the solutions to the timeindependent Schrodinger Equation are real? Why can't they be...

Sep1411 12:11 AM
tom.stoer

7 
2,363 
As I understand the many worlds interpretation of QM, theres no collapse in the wavefunction just a splitting of the...

Jan2705 09:42 PM
vanesch

20 
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can i ask ..... how could planck's idea of quantised energy explain the ultraviolet catastrophe?
WHAT is being...

Jul1405 11:26 AM
reilly

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The wikipedia page on photoelectric effect
http://en.wikipedia.org/wiki/Photoelectric_effect
talks of a 5th...

Jun1909 06:50 AM
lightarrow

6 
2,361 
I am pretty confused about how to construct states to make symmetric / antisymmetric combination so I would like to...

Mar210 07:34 AM
DrDu

3 
2,361 
Hi everyone
How do I show that the expression
\sum_{b'}\langle c'b'\rangle^{2}\langle b'a'\rangle^{2} =...

Aug208 07:55 AM
maverick280857

16 
2,360 
I have not been able to find the quantum constant force problem in the various QM texts that I have checked. I am...

Jul2705 10:13 AM
DaTario

22 
2,359 
Is continuous?..whilst in GR it is discrete, and Time in GR is continuous..yet as one explores Quantum regions it...

Nov2904 03:55 AM
Wave's_Hand_Particle

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2,358 
gravity is expressed geometrically. is this expression unique to gravity or are there formallism that allow charge/EM,...

Aug2906 12:23 PM
Perturbation

5 
2,358 
Could anyone tell me what complex scaling is?
Do the eigenfunctions of the complex scaled Hamiltonian form a...

Dec1406 10:36 AM
Georgie Cartier

1 
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Is energy lost from photons when travelling through the air (eg: friction) to an object from a source such as the sun?...

Jul2809 04:52 PM
map19

16 
2,357 
I have a simple technical problem. I'm following a paper 137, 262305 (1981)], and I am unable to show a very simple...

Jan2410 01:28 AM
TriTertButoxy

6 
2,357 
I'm studying QM out of Sakurai's book and on page 95 (equation 2.3.47), he states the BakerHausdorff Lemma without...

Oct712 03:12 PM
dextercioby

1 
2,357 
I've been reading about Hawking Radiation, and some questions have come up.
1) What exactly is a virtual particle?...

Oct1503 07:01 AM
sridhar_n

7 
2,356 
I am reading Quantum Computation and Quantum Information by Nelson and Chuang myself and came across the Bloch Sphere...

May2207 02:45 AM
maverick280857

2 
2,356 
Why does in QM the electron does not fall toward the nucleus? After all, the only force between nucleus and electron...

Jun209 11:09 AM
alxm

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This really bugs me as people like Dinesh D'souza, Deepak Chopra and many other "spiritual scientists" claim that...

Oct210 08:27 AM
Redbelly98

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2,355 
(You may think this belongs in the General Relativity section, but the question really relates more to particle...

Dec1611 12:49 PM
phinds

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Hi all,can any one tell me the meaning of lines that i had read from a book:
"The electron is situated within a...

Sep508 12:06 PM
GAGS

0 
2,354 
I am a newbie to QM. Why can't the Klein Gordon equation be used to describe particles with spin?
Thanks

Jan312 06:45 AM
akhmeteli

21 
2,354 
Is it possible to describe spontaneous breaking of the local gauge symmetry in the standard Hamiltonian formalism,...

Aug2008 06:44 PM
Avodyne

3 
2,353 
Ok so I'm a bit confused. We have a confirmed electroweak theory  electromagnetism and the weak nuclear force were...

Feb1812 01:55 PM
juanrga

9 
2,353 
Hey there! I'm still a beginner with many physics theories, so this may be an obvious question. I understand that a...

Dec1412 05:42 PM
rkastner

12 
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If the Higgs theory is correct shouldn't it be able to predict the rest masses of all particles?

Aug2004 09:38 AM
humanino

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In physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of...

Apr1311 10:34 AM
dm4b

6 
2,352 
What is the derivation for E=hf and why did experimental observation of black bodies show that quantization of light...

Oct1212 12:35 PM
tom.stoer

8 
2,352 
Hi.
Recently day, I tried to solve quantum mechanics problem in liboff fourth version to prepare
graduate...

Oct2208 08:01 PM
Ben Niehoff

4 
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can you explain this statement "if psi is a solution of a schrodinger equation, then so is kpsi, where k is any...

Feb605 11:03 PM
masudr

8 
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Oh, no. Another thread on Particle/Wave Duality?
Forgive me for starting yet another thread on this topic, but I...

Dec405 11:18 PM
Longstreet

1 
2,350 
Say for example we consider Helium.
It has 2 neutrons and 2 protons. Based on this, and using Schodingers equation...

Dec2010 04:39 AM
cgk

7 
2,350 
One time, I saw this experiment where 2 polarizers were offset by 90 degrees so that no light got through. Then a...

May1911 07:23 PM
thenewmans

8 
2,350 
Please bear with me on this one; this is a plea for understanding rather than a "the theory doesn't work" post! I'll...

Sep1709 08:04 AM
zonde

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Sorry for a (maybe) dumb question, but... I understand that according to QM, the description of the situation for a...

Nov1809 09:43 PM
LAncienne

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...the electron. I don't know what it is and i've read dozens of electronics/chemistry books trying to figure it out....

May2104 06:31 AM
shadowman

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I moved this from a different thread as i thought it would be more appropriate here.
If two photons were to arrive...

May305 08:04 AM
ZapperZ

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In a singlet state like
e>= +> >  > +>
if we take the two particles far apart and measure the spin...

Dec1409 05:48 AM
hopefully

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I'm fairly new to my readings in Quantum mechanics, so my apologies for any mistakes in interpritation of the theory....

Dec2709 02:30 PM
RUTA

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I hope this didn't come up and I'm not just repeating it but I did a search and couldn't find anything on it. So, how...

Jan812 03:42 PM
bohm2

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2,348 