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Feb2313 08:38 AM
ZapperZ

1 
30,319 
My next thread is about the Quantum Vacuum  this idea that the vacuum is actually a player/participant in the...

Jan207 01:18 PM
sanman

3 
2,177 
Hello.
I know about the correspondence principle which states that classical mechanics emerges from quantum...

Aug907 03:37 PM
quetzalcoatl9

3 
2,177 
Hi, I don't know much about physics but the limited amount of reading I've done on this particular observation (is...

Sep3009 12:06 PM
James Leighe

4 
2,177 
I'm not sure what forum to put this in. It's a math question, but it's only of interest to physics people.
Given...

Dec2109 10:56 PM
Fredrik

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:confused: I have a research project to be done and I want to know what is EinsteinDe Hass Effect. It is...

Jun2005 08:20 AM
hershal

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2,176 
For each symmetry operation R acting on a physical system,there is a corresponding unitary transformation U(R).
But...

Jun1907 02:52 PM
smallphi

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2,176 
IN an atom why the matter waves associated with electron is regarded as standing wave having varying amplitude within...

Jun2808 05:50 AM
malawi_glenn

2 
2,176 
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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2,176 
Someone attended me on the article `A doubleslit quantum eraser' from Walborn e.a. 2008. This is a much better,...

Jan1214 08:10 AM
vanhees71

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2,176 
Given an operator \hat{Q} (in the Schrodinger picture) in nonrelativistic quantum mechanics and a state...

Nov1507 02:53 PM
Magister

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2,175 
I've got this question and I'm absolutely clueless, any help will be greatly appreciated:
The nth energy level for...

Jun108 05:11 PM
SuperNomad

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2,175 
Hello all.
I haven't worked hard enough yet (reading the original papers etc) to really get at the differences...

Aug1212 09:09 PM
Einstein Mcfly

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In a traditional Belltype experiment, although one set of measurements is correlated with the other set, no...

Dec905 02:10 PM
ukmicky

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2,174 
OK, let's say we have solved Schrodinger's eqn. for a system composed of a large number of degrees of freedom.
We...

Apr2307 10:01 PM
JPRitchie

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2,174 
I'm not quite familiar in QM. All I can see are formulas, I'm familiar with diff.calc., integral, & diff.equations.
...

Sep607 06:04 PM
meopemuk

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2,174 
I'm taking a course on Lie groups and am reading alongisde Cahn's semisimple lie algebras and their representations....

Feb208 11:33 PM
jdstokes

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whether light has mass?if yes what is the reason behind it?

Sep2110 04:31 PM
ballzac

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2,174 
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 
2,174 
Hello, folks 
The descriptions I read for laymen say that once a particle is measured or observed, it's wave...

Dec106 12:19 PM
Lelan Thara

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if a ball of mass m moving under the potential : V(z) = mgz for z > 0 and V(z) = \infty for z \leq0.What is the...

Jan2308 05:16 AM
vanesch

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2,173 
A block is at rest. The block is macroscopic so we can see that it is at rest and where it is, i.e. we know its...

Apr1608 12:22 AM
spidey

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Alain Aspect's experiment:
...

Nov1909 01:15 AM
Neo_Anderson

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I've got three questions basically.
Do photons actually have only an integer spin +/ 1, or do people really only...

May210 06:44 PM
haael

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Since another thread was killed without any good reason, here I give some references concerning the ideas I was...

Aug3006 12:30 PM
ZapperZ

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2,172 
In classical e&m, for gauge invariance you can choose div=0 or div=dV/dt, where A is vector potential and V is the...

Dec1708 07:49 AM
ismaili

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2,172 
Hey, I'm trying to understand the ElitzurVaidman bomb tester since it is an essentially quantum mechanic effect, but...

Jan510 03:55 PM
Mentz114

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I recently saw two connected articles in AIP Advances. The attempt is to generate a classical model for the particle...

Jun911 05:50 AM
gpran

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QFT states that all forces are due to the exchange of virtual particles, I'm interested in photons and thier role in...

Oct2505 09:00 PM
snooper007

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In the position representation, its true that we can use operators to represent the coulombic interaction between the...

Dec1510 04:48 PM
Bob S

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I hope this is the right place to post my questions. I have very basic questions that I just don't know the answer to...

Jan1912 08:28 PM
Ken G

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Recent doubleslit experiments with massive molecules, such as fluorofullerene consisting of 108 atoms and atomic...

Feb2306 05:16 AM
zekise

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2,170 
Gents,
Is it possible to have the not singular chiral current (singularity is due to the product of fermionic...

May1806 09:04 AM
Neitrino

1 
2,170 
I have a question regarding the behavior of photons, or anything for that matter, when treated as a wave.
When I...

Aug2208 02:46 PM
peter0302

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Hi guys,
Quantum mechanics gives welldefined probabilistic predictions for the value we get when we measure...

Sep1910 02:16 AM
arkajad

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2,170 
Dear friends,
I'm a 2nd year physics student and I've taken a subject called "Introduction to the structure of...

Feb2205 12:11 AM
Davorak

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2,169 
I know quantum mechanics describies a hydrogen atom in great detail. I'm wondering if there exists another model...

Dec2906 09:56 AM
lightarrow

3 
2,169 
These questions are about the motivations behind notations in quantum mechanics.
First on my list is Dirac...

Feb911 04:07 AM
A. Neumaier

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In my thermo text, they consider a diatomic molecule that is rotating about the axis joining the two atoms (also the...

Nov1406 09:42 PM
quasar987

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I am studying QM by myself. I got a quite confusing problem which annoying me for a certain time. Well, this question...

Oct2708 08:03 AM
KFC

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is hv as we all know, but how do with derive it from Einstein's special theory of relativity? any pointer to help me...

Aug1508 03:25 AM
cesiumfrog

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2,167 