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Feb2313 08:38 AM
ZapperZ

1 
34,813 
The uncertainty principle states that you can never know with any accuracy the precise position and velocity of a...

Feb2705 09:56 AM
marlon

5 
1,360 
If I understand it, photons on the event horizon of a black hole can go over the speed of light by the plank constant....

Jan1105 09:37 PM
benpadiah

4 
1,359 
Of course that,s obvious...by setting s=it inside Schroedinguer equation you get the Heat equation..and the same for...

Apr206 05:04 AM
eljose

0 
1,359 
Let's suppose we have in perturbation theory the quantities
(m_0 , q_0 , G_0 (x,s))
With m,q, and G(x,s) the...

Apr2407 02:32 AM
tpm

2 
1,359 
surfing the web and arxiv i found the strange formula
lnA= \frac{d^{n}}{ds^{n}} \frac{s^{n1}}{n! A^{s}}
my...

Jun1708 12:11 PM
lbrits

4 
1,359 
Recently the NIST group demonstrated a two qubit programmable quantum computer,
http://arxiv.org/abs/0908.3031
And...

Feb610 07:35 PM
jimgraber

6 
1,359 
Hello everyone!
I want to study QFT and I want to know all of the required mathematics for it.
I know most of...

Dec911 11:47 AM
torquil

4 
1,359 
Consider the usual 1D quantum harmonic oscillator with the typical hamiltonian in P and X and with the usual ladder...

Sep1911 05:07 AM
Kalidor

4 
1,358 
A single stationary electron's magnetic flux caused by it's spin gives it a north and south pole right? does that mean...

Nov1006 08:28 PM
davidong3000

5 
1,358 
A friend of mine wrote a paper on entanglement, measurement, and simultaneity.
the professor provided an...

Mar2907 12:25 AM
George Jones

5 
1,358 
Hello,
again a question, this time concerning the wave function of particles. I am currently working through the...

Jul2308 03:00 PM
blue2script

0 
1,358 
For harmonic oscillator, let 0> be the ground state, so which statement is correct?
a0> =0>
or
a0> = 0...

May209 02:57 PM
Pengwuino

10 
1,358 
Hi,
I need to read up on Bra/Ket notation for my project on Bells Inequalities. I've been through the relevant...

Nov1409 05:16 PM
Fredrik

1 
1,358 
Hello, I'm planning to do my EE of IB Diploma on quantum physics and I have a doubt concerning quantum entanglement....

Mar1711 12:48 AM
zonde

2 
1,358 
This doubt is about a text in Peskin Schroeder Pg 86. I reproduce it here.

U(t,t')...

Mar3011 01:26 AM
strangerep

4 
1,358 
Does anybody know how prove the claim in my question here:...

Dec711 01:55 PM
Fredrik

6 
1,358 
Hi there, I was given these proofs to do for my quantum class.
proofs are the worst for me, I know it work and i have...

Sep705 04:24 PM
Gokul43201

7 
1,357 
I hope I'm not offending anyone here by posting a request for some help here. We are in need of a knowledgable...

Apr408 12:49 PM
Schrodinger's Dog

6 
1,357 
if we consider the propagators and other Fourier integrals in the sense of 'distribution' then are all the divergences...

Nov1308 04:11 PM
DarMM

2 
1,357 
why a><b expresses the projection...how can it be possible on matrix..if we multiply a ket a with a bra b ...we get...

Jan2709 10:48 AM
malawi_glenn

7 
1,357 
I am confused about the order of operations with kets, as well as when one can permute the order of the kets.
...

Sep1210 03:47 PM
Fredrik

5 
1,357 
Hi all, just studying for my final exam and needed a little clarification on this.
Our prof did an example:...

Apr1612 02:15 PM
Chopin

1 
1,357 
Amateur level.
Popular Science books usually start describing the doubleslit experiment in terms of waves, by...

Jul2405 05:27 PM
CarlB

4 
1,356 
I've started a new website, http://www.densitymatrix.com/ . As of yet, there is very little on this site. I put up a...

Jun706 01:20 AM
CarlB

0 
1,356 
Let be a classical particle with Hamiltonian
\pi _{t}p^{2}V(x)=0
can we describe the QM version of it...

Jul3107 04:39 AM
Demystifier

4 
1,356 
hi,
i have read that photons must have an angular momentum because they have no rest mass. does anyone there...

Oct3010 10:29 AM
tom.stoer

4 
1,356 
I've been reading about it various places online, but I can't seem to find a straight answer.
Is information lost...

Sep1311 06:29 AM
Demystifier

11 
1,356 
Einstein said " a gravitational wave can't be put in a box like a light wave."
Was he right?
What if the...

Jun2704 02:00 PM
kurious

0 
1,355 
I realize that this has been experimentally confirmed in any number of ways, based on the external application of...

May1508 12:00 PM
LURCH

3 
1,355 
I'm having trouble relating the classical (Maxwell) model for electromagnetic radiation to the quantum mechanical...

Nov3008 01:39 PM
clem

1 
1,355 
It seems the consensus is that space is just a metric, but what is the metric when, we consider (solid) objects, i...

Jan1709 11:13 AM
debra

11 
1,355 
perhaps is a dumb quetion but,
given a IR divergent integral (diverges whenever x tends to 0)
\int_{0}^{\infty}...

Apr1109 01:01 PM
Vanadium 50

5 
1,355 
Question 1:
The mean speed for escaping molecules from a hole is 1.88*(k*T)/m)^1/2 (Eq.1)
The mean speed for...

Nov1609 11:25 PM
prose100

0 
1,355 
In the doubleslit experiment, when a single particle is "fired", it will pass through the slits as a wave but hit the...

Feb1810 07:31 AM
muppet

4 
1,355 
what makes a metal sheet to reflect light? why doesn't individual metal atom reflects light?

May1810 09:00 AM
phyzguy

1 
1,355 
I now show some derivations regarding quantum commutators,leading to some inconsistencies. Can someone tell what went...

Jun1412 12:11 PM
Qiward

6 
1,355 
Is it correct to consider instead Schrodinger's Cat next case?
I to propose to consider the next task.
Let's...

Apr1104 11:44 AM
HallsofIvy

1 
1,354 
In case of mirror reflexion, a photon reflected is the same ?
There´s some atomic process in this fenomena ?
...

May809 05:06 PM
rjbeery

4 
1,354 
I know this is a hotly debated subject here, but what is the general scientific consensus (or most popular definiton)...

Sep809 10:06 AM
JustSam

7 
1,354 
Hi all.
I have been looking around for a while and done quite some research, however i couldnt find an answer. The...

May2510 07:57 AM
alxm

1 
1,354 