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Beyond the Standard Model

- Professionally researched theories... strings, branes, & LQG
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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
marcus
59 45,938
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Jul14-12 08:32 AM
ZapperZ
1 22,279
Hi everybody, I have been looking over a number of papers by Alexey Kryukov and I have some questions. I have been...
Jul20-11 03:03 AM
Demystifier
3 1,925
Background-independence is the requirement that the theory be formulated based only on a bare differentiable manifold...
Jan12-13 12:06 PM
fzero
9 1,925
http://science.uniserve.edu.au/school/curric/stage6/phys/space/relativ.html There are many, many sites on the web...
Nov21-03 12:16 PM
marcus
3 1,924
http://www.phys.psu.edu/people/display/index.html?person_id=417 Last year Martin Bojowald was a postdoc at the...
Jan2-06 03:09 PM
marcus
1 1,924
I'm reading this: ==quote== Einstein's theory of gravity, General Relativity, and our theory which governs the...
Jan24-11 12:28 AM
tom.stoer
8 1,924
By 'equivalence', I mean of the computational kind -- i.e. in the same way any universal computer can emulate any...
Oct6-10 11:26 AM
S.Daedalus
16 1,922
http://pirsa.org/12050061 Conformal Gravity and Black Hole Complementarity Speaker(s): Gerard t'Hooft Date:...
May14-12 01:07 PM
marcus
1 1,921
Dear PF, Could you please advise me good detailed reference on Grand Unified Theories... especially I want to see...
May15-12 02:06 AM
GeraldHoward
2 1,920
If you want some background on this question (i.e. why I'm asking), let me know. But either way, this is a basic...
Dec14-08 09:26 PM
BenTheMan
2 1,919
http://golem.ph.utexas.edu/category/ with Urs Schreiber and David Corfield described as "focused on the...
Aug17-06 04:18 PM
Kalimaa23
2 1,917
Simple question: is AAAD (= Action-At-A-Distance) QED standard / mainstream physics - or beyond standard? ...
Nov27-11 04:19 PM
qsa
2 1,917
When reading about string theory, the introductory notion seems to be that the tension in a string is what accounts...
Sep21-04 03:38 AM
Curious6
0 1,916
What mathematically speaking is a spinor? Why isn't it a tensor? I didn't find the mathworld defintion very useful at...
Dec1-04 07:55 PM
jcsd
4 1,915
What is Black Hole Complementarity?
Sep17-05 04:53 PM
hellfire
6 1,914
This is a long-awaited paper. http://www.arxiv.org/abs/gr-qc/0509075 Quantum geometry and the Schwarzschild...
Sep24-05 08:31 PM
marcus
11 1,913
What is the space resulting from the identification (x,y) ~ (x+2piR, y+2piR)? How is it different from the space...
Aug10-07 05:53 PM
ehrenfest
10 1,913
http://arxiv.org/abs/quant-ph/0505187 Quantum Physics from A to Z Authors: M. Arndt, M. Aspelmeyer, H. J....
May26-05 09:14 PM
marcus
16 1,912
It seems many people in Science have gravitated towards some form of a multiverse. Whether it's a Cyclical Universe or...
Jan9-14 10:50 PM
phinds
4 1,912
Alejandro recently submitted a post at SPS which engaged the active attention of Lubos Motl. So much so that unless...
Aug30-04 02:31 PM
arivero
13 1,911
I read up a few articles on him after someone told me to, and from what I can tell, it is really interesting. I heard...
Apr30-06 11:59 AM
Alexander Demets
2 1,911
HOw can you compute a Gaussian functional integral? i mean integral of the type e^{-iS_{0}+i(J,\phi)} if J=0...
Aug11-07 01:59 PM
Klaus_Hoffmann
3 1,911
I am interested in a system of natural units that I see used more and more frequently in Quantum Gravity research...
Apr5-05 12:34 PM
marcus
22 1,910
Bee Hossenfelder had an interesting discussion of the term "emergent" back in mid 2008:...
Jan2-10 07:35 AM
Fra
2 1,910
Sorry if i repeat something already commented. I have been a few time out of these forum. I have recently...
Apr15-04 09:06 AM
marcus
4 1,909
I was doing a thought experiment and came across something that I'm going to term the Planck Circle Problem for the...
Sep29-06 12:28 PM
jal
12 1,909
I'm doing a theory project on Cosmological inflation, and I've been given an equation which involves T3 which is "the...
Feb18-07 03:09 AM
Chronos
1 1,909
Don't really want to go into much detail here :P, was just wondering during a crappy elctro/physics lesson today; I...
Dec17-08 11:51 AM
BenTheMan
1 1,909
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
LAHLH
2 1,908
While reading Lee Smolin's book "Three Roads to Quantum Gravity" in which he talks about the Bekenstein bound and a...
Jun14-10 02:39 AM
czes
13 1,907
I'm an engineer trying to get some understanding of string theory. I'm reading the Becker, Becker, & Schwarz book & am...
Nov2-11 03:10 PM
p-brane
1 1,907
Please have pity on a poor ignorant layperson struggling for understanding... and keep in mind that I am...
Apr17-09 06:39 PM
apeiron
3 1,906
http://arxiv.org/pdf/gr-qc/0502110 Has any one a reason to believe that gravity is" quanta sizable", or quantum in...
Mar11-05 04:15 PM
wolram
21 1,903
Hello! I'm looking for some introductory articles on M- and F-Theory. Can anyone help me? I'm looking for articles...
Nov28-10 07:53 PM
smoit
2 1,903
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
DrBenStill
1 1,903
It now looks like the Immirzi parameter has a critical value which is determined numbertheoretically, not by the...
Jul27-11 10:23 PM
atyy
4 1,903
Dave Mattingly has been a frequent collaborator with Ted Jacobson (his thesis advisor). You know of Jacobson if, for...
Jun11-10 12:26 AM
Fra
12 1,902
Question above. Also, do you imagine time as a substance inside space, or, like a consequence of distance? How do you...
Feb6-10 03:31 PM
torquil
3 1,900
Can any, qg or string theory reproduce dark matter ?
Jul28-06 05:27 AM
mojocujo
8 1,899
Canonical theories of gravities imply a foliation of spacetime into 3 hypersurfaces, each one labeled by time and...
Dec27-12 10:25 AM
marcus
15 1,899
I get the impression from the following material that LQG models have 'resolved' the divergent big bang singularity...
Jan6-13 10:05 PM
julian
14 1,898

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