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

Aug2014 11:17 AM
marcus

68 
66,892 
Before posting anything, please review the Physics Forums Global Guidelines.
If you are seeking help with a...

Jul1412 08:32 AM
ZapperZ

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26,665 
Jorge Pullin coauthored a recent paper aimed at
resolving the BH information paradox. This just out
...

Jul1904 03:35 PM
Phobos

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Can spacetime be tear and rip?

Jul1704 09:26 PM
marcus

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this just appeared at SPR:
John Baez:
quote
In a surprise move, Hawking has decided to give a lecture...

Jul1704 07:48 PM
selfAdjoint

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4,758 
http://arxiv.org/physics/0401128
Beyond Space And Time
Ruediger Vaas
7 pages, English translation by Amitabha Sen...

Jul1604 11:09 PM
marcus

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1,493 
Over in sci.physics.research there's currently a discussion about
"why are QM and GR incompatible?"
well thats a...

Jul1604 10:02 PM
marcus

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http://arxiv.org/hepth/0407115
Loop Quantum Gravity and the Cyclic Universe
Martin Bojowald, Roy Maartens,...

Jul1604 04:34 PM
sol2

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quantum gravity research seems to be undergoing some changes
so just because this function comes up today doesnt mean...

Jul1604 01:31 PM
marcus

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i found this in my wandering in google:
http://pdg.cecm.sfu.ca/~warp/papers/essay/essay.html
can someone explain to...

Jul1604 11:05 AM
sol2

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I have a question I'm craving to ask about the relationship of demensions and entropy. It's a specific question I'm...

Jul1504 09:07 PM
Imparcticle

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I read from this site: http://www.math.columbia.edu/~woit/blog/archives/2004_04.html
refering to the last blog...

Jul1404 11:27 AM
Mike2

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Dear friends,
I have a friend who studies architecture and has given this difficult task:
<<think of a house of...

Jul1304 11:00 PM
Tom McCurdy

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In the paper Separable Hilbert space in Loop Quantum Gravity carlo rovelli explains why it's not yet known whether lqg...

Jul1304 08:10 PM
jeff

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1,195 
......................

Jul1304 04:04 PM
jeff

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1,089 
String theory needs the graviton.
But guess what. They would have to freely admit to gravity waves having not be...

Jul1204 04:12 PM
sol2

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Earlier, back around 2001, Martin Bojowald got rid of the Big Bang singularity and since then many authors have...

Jul1104 05:53 PM
jeff

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I just read the latest Scientific American and they have an article about the proof of the Poincaré conjecture....

Jul1004 07:44 AM
styler

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4,178 
Hey everybody. I'm doing an essay on this very subject, the comparisons and contrast between LQG and ST. I've heard...

Jul504 09:50 PM
PRodQuanta

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Tomorrow Friday, at 9.10 in Paris, Ed Witten will deliver his reading on twistors.
At a high probability, this...

Jul504 07:08 PM
marcus

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The biggest gap of them all and it is found in the most unlikely place?
...

Jul204 10:31 PM
Olias

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1,502 
Besides the Hawking talk on BH information loss, and the public lecture by Roger Penrose on fadishness, wishful...

Jul204 09:18 PM
sol2

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I was reading about Weyl Transformations in Polchinski's book and I have a little doubt: Is it correct to say that...

Jul104 01:11 PM
selfAdjoint

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2,119 
Peter May and I are about to run a workshop on ncategories at the Institute for Mathematics and its Applications:
...

Jun3004 02:38 AM
rick1138

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2,046 
Assuming that string theory does not rule out pointlike particles such as quarks, how can a group of onedimensional...

Jun2904 01:22 PM
s4syth

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1,330 
I am pondering if the supremacy of fundamental string theory as a model for the smallest description of nature has...

Jun2604 07:35 PM
selfAdjoint

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This is a question I came about while thinking about the nature of matter and energy. According to string theory, the...

Jun2504 11:56 PM
sol2

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Gravity is seen as an effect of spacetime curvature in GR. Why is it that QM sees gravity as a force like the other...

Jun2504 08:12 AM
selfAdjoint

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http://www.physicsweb.org/article/news/8/6/14
The latest findings, supposedly, refute the string theory...

Jun2404 09:10 PM
marcus

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Hi there..
If was wondering about the relation between information and entropy, in the following context.
The way...

Jun2404 12:25 PM
skowalcz

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2,035 
Can someone explain CP violation. Under this title how would we approach a supersymmetrical universe?
Since I am...

Jun2404 08:36 AM
sol2

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2,515 
Baez recent paper "Quantum Quandaries" references one that Fotini Markopoulou wrote last year with Hanno Sahlmann and...

Jun2304 10:41 PM
marcus

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1,773 
how do strings exist in our reality?
Let's just say, for the purposes of this argument, that a string was broken...

Jun2204 06:46 AM
techwonder

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1,380 
I'm just trying to understand the idea that our universe may be the result of a collision between two branes....

Jun2104 08:17 AM
alpha_wolf

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No idea if it's a scoop, seeing as it's dated to the 4th of June, but nevertheless, i haven't spotted it elsewhere...

Jun2004 12:17 PM
NeutronStar

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There’s a consensus among many physicists that the universe did not emerge from nothing, if fact stating that nothing...

Jun1904 03:30 AM
Imparcticle

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Hello people, Ive been wondering alot what the string theory equations look like. I have asked this question a while...

Jun1604 08:17 AM
selfAdjoint

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If you deposit one layer of material (film) of a thickness tf on top of another material (substrate) of thickness tf...

Jun1504 04:02 PM
yxgao

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Link:http://uk.arxiv.org/abs/grqc/0311059
:smile:
Marcus you may wish to place this in to its relevant thread...

Jun1504 12:17 AM
Olias

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Since so many of you guys have been helping me with my understanding of certain areas like Gr SR LQG and QM I figured...

Jun1504 12:11 AM
Tom McCurdy

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Alright I swear that I read in scientific american that Loop Quantum Gravity is trying to put fouth a new toe to...

Jun1404 09:41 PM
sol2

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http://arxiv.org/abs/grqc/0406056
Casimir Energy Density at Planck Time: Cosmic Coincidence or Double ...

Jun1404 07:42 PM
marcus

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2,441 