A Physics forum. Physics Banter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » Physics Banter forum » Physics Newsgroups
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners


Popular Tags: Current Physics Research (Moderated)
, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Post New Thread
Threads in Forum : Current Physics Research (Moderated) Forum Tools Search this Forum Feed Icon
  Thread / Thread Starter Last Post Reverse Sort Order Replies Views
Question on a diffusion equation by Inf
Dear All, I have a complicated diffusion equation with various slowly changing time dependent parameters. Does anyone know if there is an analogue of the adiabatic...
10 Hours Ago
by Bob_for_short Go to last post
1 2
Two questions about quantum momentum and position by Jay R. Yablon
1) It is well known that the inner product of position and momentum eigenvectors: x|p = exp (1) Is there some simplified expression for the outer product: |xp|...
(Multi-page thread 1 2)
13 Hours Ago
by Hendrik van Hees[_2_] Go to last post
11 17
Definition of "momentum operator" in quantum theory by Stephen Parrott[_3_]
Recently there were some posts discussing the definition of "momentum operator" in quantum mechanics. One poster asked about it, and another replied that the answer could...
2 Days Ago
by Stephen Parrott[_3_] Go to last post
4 5
Call for papers: MULTICONF-10, USA, July 2010 by John Edward
Call for papers: MULTICONF-10, USA, July 2010 The 2010 multi-conference (MULTICONF-10) (website: http://www.PromoteResearch.org ) will be held during July 12-14, 2010 in...
2 Days Ago
by John Edward Go to last post
0 5
storing sound energy by guess who
hello all, I want to ask if i have to store sound energy so that i can convert it to power a bulb . how should i accomplish that can anybody give me idea thanks
3 Days Ago
by Wieslaw Bicz Go to last post
7 8
Operator identity by Inf
Dear All, I have a one dimensional quantum mechanics problem where x is the coordinate operator and p the momentum operator (so =i). The object of interest...
3 Days Ago
by a student Go to last post
2 5
proof of the exclusion principle by I. F.
Hello, I have read this on wikipedia about the exclusion principle, without any reference: "In relativistic quantum field theory, the Pauli principle follows from applying...
3 Days Ago
by Oh No Go to last post
1 4
Questions About Nuclear Radii by Robert L. Oldershaw
In the case of atoms, there is a rough correlation that gives the radius for different n values: R ~ n^2 a, where a = the Bohr radius. Atoms can range in size by a factor of...
3 Days Ago
by Bob_for_short Go to last post
5 6
elementary question on four-wave mixing by rge11x
Hello Let k1, k2, k3 be wavenumber vectors that are not collinear and not in the same plane (they span 3-space) and let k4 = k1 + k2 + k3 (momentum conservation) be the...
6 Days Ago
by rge11x Go to last post
0 3
Discrepancies in quantum electro-dynamics by Juan R. González-Álvarez[_22_]
What is the status/acceptance of "Discrepancies in quantum electro-dynamics" 2004: Radiation Physics and Chemistry 71(3-4), 611-617 by C. T. Chantler? I have not found any...
0 3
Two errors and a (glaring?) oversight in A. Zee's Path intergalpresentation? by Jay R. Yablon
In his development of the path integral at: http://jayryablon.files.wordpress.com/2009/12/sakurai-and-zee.pdf professor A. Zee has two errata which he has corrected at:...
1 Week Ago
by Jay R. Yablon Go to last post
5 6
Solar power. by clifford wright
Some interesting posts. However I have quite a lot of PRACTICAL experience with domestic solar power systems and the different uses of the overall power load must be very...
1 Week Ago
by clifford wright Go to last post
0 1
The Big Bang & Variable Light Speed by Rock Brentwood
The Big Bang & Variable Light Speed I'm going to offer an interesting perspective on the FW cosmology -- a different take that brings to light (pun intended) what's hiding...
(Multi-page thread 1 2 3 ... Last Page)
1 Week Ago
by Dr J R Stockton[_20_] Go to last post
71 72
Does the Lie Product formula work for infinite-dimensional operators? by Jay R. Yablon
Please take a look at http://en.wikipedia.org/wiki/Lie_product_formula. Would this formula, which is stated to apply to NxN matrices, also apply to an infinite-dimensioned...
1 Week Ago
by Rock Brentwood Go to last post
4 17
How Do I Tell if a constant reall Is? by Jenny
Consider a metric for a 2-dimensional manifold in the form: ds^2 =dt^2 - dx^2/ c^2 How can I tell PHYSICALLY whether c is a constant or is some non - constant...
(Multi-page thread 1 2)
1 Week Ago
by Tom Roberts[_2_] Go to last post
11 14
The Twin Paradox and the derivation of proper time... by Leif Pederson
I am reading Luminet's paper titled "Time, Topology and the Twin Paradox" available at: http://arxiv.org/ftp/arxiv/papers/0910/0910.5847.pdf The author is deriving the...
1 Week Ago
by Leif Pederson Go to last post
3 5
time travel? by Zach
Was listening to radio program "Coast to Coast AM" tonight with Art Bell and this American physicist Dr. David Anderson claims to have traveled in time. It sounds ridiculous...
(Multi-page thread 1 2)
1 Week Ago
by harald Go to last post
12 22
Question about probability amplitudes and associated actions by Jay R. Yablon
In the path integral formulation of quantum theory, the Dirac probability amplitude: x_2,t_2|x_1,t_1 "corresponds to" exp = exp (1) where L is the classical...
1 Week Ago
by Jay R. Yablon Go to last post
0 1
On Signal Propagation by Anamitra Palit
Problem: An electron and a positron annihilate to produce a pair of photons which move in two specific directions. Now the question is what really transports the information...
1 Week Ago
by Tom Roberts[_2_] Go to last post
9 13
Call for Papers: CSC'10 (The 2010 International Conference onScientific Computing), USA, July 2010 by A. M. G. Solo
It would be greatly appreciated if this announcement could be shared with individuals whose research interests include scientific computing. Thanks. ------- ...
2 Weeks Ago
by A. M. G. Solo Go to last post
0 1
Post New Thread


Display Options
Showing threads 1 to 20 of 5158
Sorted By Sort Order
From The
Forum Tools Search this Forum
Search this Forum :

Advanced Search

New posts New posts More than 15 replies or 50 views Hot thread with new posts
No new posts No new posts More than 15 replies or 50 views Hot thread with no new posts
Closed Thread Thread is closed  
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 05:18 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.Search Engine Friendly URLs by vBSEO 2.4.0
Copyright ©2004-2010 Physics Banter, part of the NewsgroupBanter project.
The comments are property of their posters.
Calorimeter Homogenizer Hot PLate - Hot Plate Calorimeter Homogenizer - Credit Consolidation - Article directory - Internet Advertising