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Beyond the Standard Model

- Professionally researched theories... strings, branes, & LQG
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Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Jul14-12 08:32 AM
1 22,315
announcements, btsm, event Sticky Thread Pinned: BtSM Event Announcements ( 1 2 3 ... Last)
This sticky is for announcements of pertinent scientific events, such as conferences, seminars, or public talks. This...
Apr12-14 02:54 PM
59 46,092
Carlip has argued that the dimensional reduction in many apprroaches to quantum gravity is related to the BKL limit...
Apr5-12 05:00 PM
2 1,958
Which talks' input will contribute most to future research in Loop-and-allied quantum gravity? Since the poll is...
Apr5-12 09:32 PM
13 3,038
Which and why do you believe will turn out to be more 'fundamental' (in the sense that one will prove to be the...
Apr6-12 02:15 AM
3 1,661
Well, not new insights, but at least new paper and a new face: Particle Physics from...
Apr7-12 08:45 AM
4 1,934
how the decay of proton emerge from GUT Modles, did the group SO(10) contains gravity, or only the strong, weak and...
Apr8-12 05:47 PM
0 1,263
Suppose we can meld quarks into leptons and leptons into quarks vice versa. Consider the particles to all be the same,...
Apr8-12 08:30 PM
0 1,405
==sample quote== It is especially wrong to talk about a mysterious “substance” to denote dark energy. The expression...
Apr9-12 12:32 PM
123 26,864
which particles or phenomena in High energy physics make us needs Noncommutative Solitons in String Theory?
Apr9-12 01:49 PM
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Hi Everyone, :shy: I read in some paper about the significance of Graviton-Graviton Scattering as a theoretical tool...
Apr10-12 01:31 AM
2 1,608
In LQG the canonical variables are a SU(2) connection A, and the "electric" field E, such that they form a canonical...
Apr12-12 05:44 PM
4 1,859
what is the the easiest way to learn standard model theory ?
Apr14-12 08:57 AM
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Hi, In Birrel and Davies ch4 they write: \langle \psi|:T_{ab}:|\psi \rangle =\langle \psi|T_{ab}|\psi \rangle...
Apr14-12 11:45 AM
2 1,913
The scientific method says that if experiments or observations falsify a theory, that theory must be rejected. String...
Apr16-12 04:21 PM
34 9,233
My understanding is that Fermi has results that show the mixing angle for neutrinos is not the same as the mixing...
Apr18-12 02:51 AM
1 1,906
Hello all, I am currently a Junior in High School with a deep interest in Physics/Mathematics, specifically in the...
Apr18-12 10:28 AM
4 2,218
Einstein's General Realitivity acurately computed the precession of the perihelion of the Mercury, Schwinger's and...
Apr19-12 07:03 AM
6 2,004
Please teach me this: We know that there is a approximate symmetry of time T in physics(together with CP...
Apr19-12 09:15 AM
3 1,561 Fine presentation today, room packed, good questions from audience (esp. from Turok but...
Apr21-12 06:10 PM
49 8,166
The appearance here of threads such as Causes of loss of interest in the String program and Is string theory really...
Apr23-12 03:48 AM
2 1,982
There is a natural way to formulate Loop quantum geometry as the dynamics of line defects in a flat vacuum. Just under...
Apr23-12 09:10 AM
3 1,845
I have read in a couple different places that the math that comes out of string theory has helped a couple of...
Apr24-12 07:41 PM
6 2,190
I would like to discuss a puzzle I'm wondering about in loopy approaches to quantum gravity. The puzzle is roughly...
Apr25-12 02:38 AM
60 12,064
What are the charges of the X and Y boson? I've been looking through online material, and most doesn't mention...
Apr25-12 07:47 AM
10 2,416
Hello, I am an amateur physics enthusiast and would like to pose a question to you. It is my understanding that...
Apr26-12 04:35 PM
1 1,841
Tom's thread "Why I'm REALLY disappointed..." continues to get increasingly thought-provoking and informative. I...
Apr27-12 01:10 PM
357 53,207
I know that cosmic string have intense energy and are apparently leftovers from the big bang and can create a sort of...
Apr27-12 05:12 PM
1 1,836
Can anyone give me a general sense of what the quantum master equation (or BV master equation) is and how it relates...
Apr29-12 07:04 PM
4 2,601
Has anyone read Sach's textbooks and papers? What is incosistent in his approach, as far as I can tell there's...
Apr30-12 09:17 PM
27 8,641
I was recently reading a small news article named Experiments Show Gravity Is Not an Emergent Phenomenon. Linky. ...
May4-12 06:09 PM
3 1,651
And is a black hole where strings stop vibrating? Like one membrane deadening the vibrations resonating from another...
May7-12 08:22 PM
0 1,400
Just got this issue (also linked to from PF home page): ...
May8-12 06:09 AM
15 4,202
Ashoke Sen has written a paper which uses path integrals in Euclidean gravity to...
May9-12 07:47 PM
23 3,752
We currently have a thread about logarithmic corrections to the basic black hole entropy formula. I was thinking about...
May10-12 11:42 AM
9 2,733
Hello, My name is Holly... I'm new here.... so i have no idea weather I put this in the right section! D: ......
May14-12 12:23 PM
15 3,608 Conformal Gravity and Black Hole Complementarity Speaker(s): Gerard t'Hooft Date:...
May14-12 01:07 PM
1 1,925
Dear PF, Could you please advise me good detailed reference on Grand Unified Theories... especially I want to see...
May15-12 02:06 AM
2 1,923
Hi guys basically I'm in secondary school and my teacher started taling to me about the four forces in space which are...
May16-12 03:50 PM
2 1,519
In the current long thread discussing string theory, arivero wrote: I replied So here is the promised thread....
May18-12 03:04 AM
mitchell porter
28 6,802
How can isotropy emerge in a 'salt' cellular automaton, since the automaton is constrained by the three axes? Or...
May18-12 06:08 PM
0 1,441
Hi, I was working through a Twistor paper and it was explaining the link between holomorphic vector bundles and anti...
May19-12 09:26 AM
3 1,377

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