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

Apr1214 02:54 PM
marcus

59 
45,755 
Before posting anything, please review the Physics Forums Global Guidelines.
If you are seeking help with a...

Jul1412 08:32 AM
ZapperZ

1 
22,233 
I put an annoucement of this up in Announcements. There are some other links about it there, if you want more...

Jul2308 06:50 PM
MTd2

1 
1,245 
If you have links of good articles and review papers of Loop Quantum Cosmology plz post here

Jul2308 11:54 AM
SuperStringboy

3 
1,291 
Hi guys, this is Barton Zwiebach's Introduction to String theory question 4.2 on the longitudinal wave on a taut...

Jul2208 08:51 AM
Gianni2k

1 
2,952 
hey everyone, im new here and im wondering if anyone knows whether or not someone already came up with the idea i had...

Jul2208 08:17 AM
Gianni2k

1 
1,285 
Tipler had proposed that the correct QM Lagrangian leading to gravity should be
S = \int d^4x\,...

Jul2208 08:03 AM
friend

22 
3,758 
I expect this paper will "raise the dead" in the sense of evoking a comment from John Baez :). It develops some...

Jul2108 10:03 PM
marcus

1 
1,381 
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

0 
988 
I was wondering why physicists already bother on searching for a grand unified theory if they haven't even unified the...

Jul2008 09:55 AM
Vanadium 50

7 
1,581 
Has any one here worked with the Potts model so that they can explain why these two papers, which seem so unrelated...

Jul1908 09:45 AM
jal

1 
1,812 
Is there a nice, cute way to see what R symmetry is? I mean, N=1 SUSY has a global U(1)_R symmetry, which is a charge...

Jul1908 07:06 AM
Haelfix

4 
4,318 
I stumbled with this paper that propose the idea that gravity could possibly be an Electrostatic force. Im no...

Jul1908 06:45 AM
Vanadium 50

1 
1,575 
Hello everyone
I create this thread as a copy of one thread with the same title in the subforum dedicated to string...

Jul1808 10:34 AM
shalayka

18 
4,376 
I am presently reading a paper on Inflation. It uses the term Hubble length. Can someone provide the Hubble length...

Jul1708 01:50 PM
Coin

3 
1,363 
The fundamental part of string theory is that particles are in fact made up of vibrating strings. So this means that...

Jul1608 12:58 PM
DaveC426913

3 
6,256 
quantum mechanics has many interpretations, though a lot of them don't disagree in the maths.
i would like to know...

Jul1408 05:09 AM
Demystifier

1 
1,278 
One of the intriging things to me about Causal Dymanical Triangulations is the implication of a fractal spacetime...

Jul1308 01:21 PM
Fra

34 
5,959 
does the idea of how gravity works through gravitons contradict einsteins general relativity?
the idea of a particle...

Jul1208 10:37 AM
humanino

1 
1,325 
Hi:
I've heard that Susy is a central prediction of string theory, is that true?, and if that is...

Jul1108 10:57 AM
George Jones

1 
3,176 
how can people predict that the graviton is a particle of spin 2?

Jul608 06:55 PM
shalayka

1 
1,341 
I know about string theory, but have heard that string theory is part of the bigger scheme of string field theory,...

Jul408 02:20 PM
humanino

16 
2,832 
I read somewhere that string theory could be disproved if it is found out that the universe expanded at a certain...

Jul208 10:38 AM
Unredeemed

3 
1,312 
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

0 
1,267 
Every quarter we have a poll predicting which will be the quarter's most valuable QG paper, most important for future...

Jul108 12:11 PM
jal

17 
2,848 
Does anyone know of any research programs out there that are considering physical structure formation in terms of...

Jul108 10:28 AM
Fra

23 
3,267 
The assumption that gravity in 4D couldn't be treated as a quantum field theory (any attempt would always be overrun...

Jun2908 07:43 AM
Haelfix

6 
1,580 
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

0 
1,202 
I've read Brian Greene's "Elegant Universe" and most of Lee Smolin's "The trouble with Physics". I found them both to...

Jun2008 04:50 PM
dx

5 
3,512 
I am reading Michael Hines new book, Supersymmetry and String Theory. He keeps referring to "treelevel". What is...

Jun1608 07:28 PM
jhh

1 
7,774 
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

0 
1,456 
Perturbative SuperYangMills from the Topological AdS_5xS^5 Sigma Model
A proof of the AdS/CFT correspondence
Is...

Jun1408 10:13 PM
jal

6 
1,836 
I read the abstract of Prof. Vafa's recent paper on string
phenomenology. (arXiv:0806.0102)
But, I don't really...

Jun1108 05:00 AM
pellis

2 
4,352 
SU(3) needs to act on a minumum of 4 compact dimensions.
SU(2) needs a minimum of 2 dimensions
U(1) needs a minumum...

Jun1108 04:27 AM
arivero

14 
3,082 
Tonight and tomorrow (Sunday), PBS television is rebroadcasting “The Ghost Particle” on the neutrino work by John...

Jun1008 11:04 AM
RandallB

9 
2,622 
I finally started to read Smolin's Three roads to Quantum Gravity and only read the first two chapters so far. It...

Jun708 03:14 AM
Fra

55 
6,424 
In an atom we know that there is a large space between the particles in an atom.
Is this space supposedly filled with...

Jun608 10:29 PM
grosquet

4 
3,478 
In LQG, is the graviton absorbed (and then subsequently retransmitted without scatter), or is does the graviton pass...

Jun608 09:54 PM
shalayka

0 
1,131 
For you Marcus:
http://www.cbc.ca/technology/story/2008/06/05/lazaridisperimeter.html

Jun608 09:34 PM
shalayka

0 
1,720 
Hello people
I have just acquired Zwiebach's "A first course in string theory". I am actually very busy with...

Jun608 02:55 PM
Jimmy Snyder

113 
27,922 
This paper may be slow to get the attention it merits because of its density and length. I have just printed out...

Jun408 10:43 PM
marcus

2 
1,710 
Next week will be the 13th conference in the Recent Developments in Gravity series.
It will be held at Salonica...

Jun408 10:34 AM
marcus

5 
1,965 