This sticky is for announcements of pertinent scientific events, such as conferences, seminars, or public talks. This...

Apr1214 02:54 PM
marcus

59 
46,143 
Before posting anything, please review the Physics Forums Global Guidelines.
If you are seeking help with a...

Jul1412 08:32 AM
ZapperZ

1 
22,329 
For you Marcus:
http://www.cbc.ca/technology/story/2008/06/05/lazaridisperimeter.html

Jun608 09:34 PM
shalayka

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1,726 
In LQG, is the graviton absorbed (and then subsequently retransmitted without scatter), or is does the graviton pass...

Jun608 09:54 PM
shalayka

0 
1,133 
http://arxiv.org/abs/0804.3210
Introduction to String Theory and Gauge/Gravity duality for students in QCD and QGP...

Jun1608 10:41 AM
jal

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1,461 
I wonder if the mass term in the kinetic energy can be alterantively interpreted as a metric? And can energy be a form...

Jun2608 07:10 PM
friend

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1,207 
Which of these papers do you think will prove most valuable for future research? For brevity, papers are designated by...

Jul108 03:51 PM
marcus

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1,270 
I am doing research among the classification of singularity. I would like to know that if black hole evaporation can...

Jul2108 01:28 PM
WhiteRhasta

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988 
Hello, I’m obviously not a scientist, but I have been wondering if anyone has considered that a Kerr ring singularity...

Jul2908 10:46 AM
Arch2008

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1,169 
When I read the security report from Cern (not that I am too worried), I came to something, which I do not fully...

Aug1208 07:49 PM
Micha

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2,123 
I have posted an article in my blog with helpful links to understand spin network. I hope it helps.
...

Aug2108 04:51 PM
SuperStringboy

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1,530 
This thread has a tight focus. Goerlich's slides
...

Aug2308 04:21 PM
marcus

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1,256 
The nonstring, non relativistic version.
Consider two points of mass M rotating in a circle of radius R and...

Aug2608 06:22 AM
arivero

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1,144 
Hello everyone....
I am a new member, i am an engineering student , but working in physics all the time :) , i have...

Sep1308 12:46 AM
infinityanshu

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1,281 
I know thanks to Marcus that there are papers, including an intro by Rovelli, that "together at last, LQG and...

Sep2408 07:25 PM
ensabah6

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1,257 
as a physicist i know how to define the concepts such as derivatives integrals and so on, the problem comes when one...

Oct308 03:52 AM
mhill

0 
1,449 
Hi.
I'm looking at Berkovits' pure spinor formulism of string theory. I am a PhD student studying mathematics and so...

Oct508 08:54 AM
zazzou

0 
1,254 
Couldn't find any old topics about this, so here we go.
So I was thinking about the relationship between inertia...

Oct608 05:29 AM
kvantti

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2,387 
I thought this 'd be interesting
http://www.sciencedaily.com/releases/2008/10/081010081650.htm
Mathematicians...

Oct2008 10:25 PM
H.M. Murdock

0 
1,796 
hi, i would need help to compute (approximately) the functional determinant
Det ( \partial ^{2} + V(\phi ) )
...

Nov608 02:19 AM
mhill

0 
1,541 
using the WKB expansion upto any power of \hbar could we writte the path integral as
I_{WKB}(1+...

Nov1208 08:57 AM
mhill

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1,360 
http://arxiv.org/PS_cache/arxiv/pdf/0811/0811.2161v1.pdf
He finds that only twists and knots are conserved in...

Nov1608 07:05 PM
MTd2

0 
1,398 
This item has connections with the definition of time, the unresolved black hole information paradox, the...

Nov1908 11:26 AM
marcus

0 
1,435 
In my readings I came across some solutions of classical supergravity theories that are hard to understand. I am...

Nov2008 10:12 AM
Professor_E

0 
1,065 
arXiv:0811.4129 (crosslist from grqc)
Title: Consistent Loop Quantum Cosmology
Authors: Martin Bojowald ...

Nov2708 09:23 AM
wolram

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1,335 
the question is, how can you use or use the NCG and Dixmier traces to erase the UV divergences (short distance)
i...

Dec508 05:29 AM
mhill

0 
1,374 
I just have a simple question.
How is the Majorana spinors related to supersymmetry and what is the consequence of...

Dec708 12:53 AM
Hyperreality

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2,222 
I have beening trying my best to understand the notion of fields in Quantum field theory. Here are some questions that...

Dec808 11:57 AM
ttjjww

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1,216 
I am trying to understand the meaning of nonlocality and its implications in physics. My concept of locality is not...

Dec1008 05:24 AM
arroy_0205

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1,387 
howya  for those who hold to a theory of gravitons being the operative mechanism of gravity (as opposed to GR), i...

Dec1608 01:18 PM
jnorman

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1,761 
http://edge.org/q2009/q09_index.html
At least one of this year's "big change coming" predictions had to do with...

Jan209 01:49 PM
marcus

0 
954 
A finding that may have interest.
http://arxiv.org/PS_cache/arxiv/pdf/0901/0901.0510v1.pdf
Quote.
Some new...

Jan609 11:18 AM
wolram

0 
1,224 
How does Dark Matter/Energy fit in the picture of the Standard model? Do they work together or contradict each other?...

Jan809 02:48 PM
Wand3L

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2,424 
I'm having a bit of trouble understanding a past exam paper that i'm revising for where it asks.
How the the...

Jan1609 08:41 PM
pazmush

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1,303 
http://www.edge.org/3rd_culture/wilczek09/wilczek09_index.html
Like his book, Lightness of Being, the interview is...

Jan1609 10:14 PM
marcus

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1,629 
In a recent lecture on bosonic string theory, we calculated the Virasoro operators, especially the zero mode,...

Jan2409 05:50 AM
Orbb

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1,842 
In a recent lecture on bosonic String Theory, we encountered the divergent Sum 1+2+3+... when calculating the zero...

Jan2409 05:54 AM
Orbb

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2,258 
I am wondering if string theory says anything about how only some vibrational patterns lead to mass while a few don't,...

Jan2809 10:42 AM
Naty1

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1,195 
ABSTRACT
Parity no conservation in the decay processes is considered as fundamental property of weak...

Jan2809 12:11 PM
Stanislav

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1,116 
I have a theory about fast variable G, (a few approaches) but almost no comments on this.
...

Feb109 08:09 PM
exponent137

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1,056 
Hi folks ! I have always felt that string theory can be generalized somewhat further via the inclusion of knotted...

Feb209 11:24 PM
Alwi

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1,401 
http://arxiv.org/abs/0902.1509
E(7(7)) and d=11 supergravity
Authors: Christian Hillmann
(Submitted on 9 Feb...

Feb1009 07:18 AM
MTd2

0 
1,407 