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If you are seeking help with a...

Feb2313 08:38 AM
ZapperZ

1 
35,477 
Does anybody know an example for a uncountable infinite dimensional Hilbert space?(with reference or prove).i know...

Nov1411 10:27 AM
eztum

30 
9,460 
I just had a weird thought.
One qubit is a 2d complex vector space which is isomorphic to a 4d real vector space. ...

Jun1011 09:17 AM
haael

4 
953 
In quantum mechanics, why does the Fourier transform
f(x) = \int_{\infty}^\infty F(k) e^{ikx}dk
represent...

Jun1109 05:28 AM
DrFaustus

4 
1,765 
I have a question about an expirement that i saw yesturday in my physics class. They were shooting electrons one at a...

Apr306 01:04 AM
koantum

35 
2,468 
This is my first post by the way. Im hoping to be accepted here and not considered a "n00b".
RELATIVE
Let me begin...

Aug1109 10:10 PM
DaleSpam

1 
961 
Forgive my ignorance if I'm missing something obvious; although I try to stay informed my interest in physics is...

Apr2208 07:43 PM
iSlak

7 
2,294 
My knowledge of QM is far from great, but I can't figure out what I'm missing here.
When looking for e.g. an...

Aug1308 07:02 PM
DieCommie

3 
1,023 
So say for example: Somehow you were dislodged from time so whenever you made a decision you never knew what reality...

May2412 01:23 PM
StevieTNZ

2 
803 
Hello,
Lately, I have been thinking about the uncertainty principle (UP) and how it applies to the nucleons. Now, I...

Jun2606 11:45 PM
Quaoar

1 
1,093 
Hi, I've been trying to understand the SternGerlach experiment. I've been reading this book which explains how to...

Feb1509 09:17 PM
Fredrik

7 
2,705 
Hi quick question, is there a reason that the eigenvalues of Jz, Lz and Sz are all denoted m? Are they the same?...

Feb1709 08:53 AM
malawi_glenn

1 
1,154 
Please help!
OK so when we looked at the Zeeman effect, we used the states
n, j, l, m>
where these are the...

May1509 05:48 PM
Matterwave

1 
900 
Hi, quick question:
I have been told that the weak field regime is when the spin orbit interaction dominates over...

Jun709 09:16 PM
wdlang

1 
1,649 
question about the double split experiment.
So detectors placed at the slits create the wave function collapse of...

Jul710 06:50 PM
Salman2

8 
1,605 
EDIT: This may be better in the Chemistry forum, I'm really not sure.
I'm just doing some basic qualitative MO...

Jul1509 08:52 PM
rabbitweed

2 
1,016 
I have a question about expectation values in quantum mechanics.
When calculating <x>=\int\Psi*x\Psi does x always...

Sep1811 09:23 AM
Bill_K

1 
812 
Ive been reading lately about the Planck constant and have been trying to learn more about it if possible.
The way...

Jul1413 02:54 AM
SteamKing

6 
820 
Greetings,
I'm trying to illustrate how nuclear fusion would "look" from the perspective of two nuclei that are...

Apr408 11:16 AM
RabitHolRules

9 
2,034 
I would like to know what are some examples of what two nuclei would have to experience in order to become entangled....

Apr1008 07:27 PM
reilly

12 
1,700 
Ok so I am trying to expand my understanding of these two concepts. Here is what I understand so far.
There are very...

Dec404 06:58 PM
dextercioby

1 
2,001 
In Sakurai:
The state ket for an arbitrary physical state can be expanded in terms of the x'>
\alpha>=\int dx'^3...

Jan2306 10:15 AM
DaTario

4 
1,093 
I've been hearing a lot about "loop gravity" latey. I am not even sure if I am under the right title "quantum...

Jun2104 07:02 PM
marcus

2 
1,142 
In the famous thought experiment of Shroedinger’s Cat, we never consider the cat itself as an observer. The cat would...

Sep2204 03:04 PM
humanino

8 
3,268 
How can a particle be in two places at the same time? Is time and space an illusion? Does quantum nonlocality imply...

Dec1504 07:56 AM
dextercioby

6 
1,248 
I originally posted this under philosophy and someone suggested I go here though it may be a little speculative for...

Dec2304 01:41 PM
jackle

1 
1,487 
Is the universe an unbroken whole as David Bohm suggest? Is framentation an illusion of the discriminating mind of...

Jan2406 06:42 PM
RAD4921

0 
2,208 
Does the collapse of the wave function really happen when someone observes it or is collpase a fluke of measurement?...

Feb2606 12:14 PM
reilly

18 
2,407 
Can blind people collapse the wave function or is the wave collapse restricted to the sense of sight? Can other senses...

Jun2510 03:43 PM
Dr Chaos

24 
3,295 
The title says it all. I'm sorry if you get annoyed because of my "noobishness", but I'm still a physicist in training...

Oct113 02:32 AM
Jazzdude

6 
1,121 
I need some help with a problem that involves the concept of quantum superposition. Suppose you have a nucleon...

Sep2105 07:16 PM
Rade

6 
2,340 
In reading D. Bohm "Quantum Theory" (1979), on p. 625 he makes the statement..."without appeal to a classical level,...

Sep2505 07:28 AM
straycat

7 
1,303 
In reading about Bell tests I found this link:http://www.abc.net.au/science/features/quantum/, which has discussion of...

Sep2605 10:28 AM
DrChinese

36 
3,575 
At this link:
http://www.geocities.com/ptep_online/PP0407.PDF
is a recent paper by Carlos Castro on a new...

Nov2005 02:16 PM
Rade

2 
1,494 
I have a question, would QM predict an entanglement of heat and cold wavelengths made available to an observer ?
At...

Dec305 12:44 PM
Rade

0 
928 
Suppose an experiment was published next week in Science that conclusively falsified quantum mechanics, how would the...

Jan1806 11:10 PM
Rade

23 
3,146 
In another thread, PF member "SelfAdjoint" made the following comment:
...and indeed you see papers suggesting...

Jan2306 05:54 AM
vanesch

3 
1,083 
I would like to better understand the apparent controversy between the theories of QED (quantum electrodynamics) and...

Jun1706 07:26 AM
Rade

0 
1,765 
Does the newly discovered crystalline structure of high pressure oxygen reported in Nature falsify QM theory at...

Sep2306 05:33 PM
Rade

0 
1,176 
I have read the following claim (where is not important):
...the Schrodinger equation provides no rational basis...

Sep207 10:00 AM
dextercioby

1 
1,339 
Have funplay it loudif you work in area of QM, perhaps this song about you:
...

Oct407 10:58 PM
Rade

0 
1,167 