
#1
Jul607, 02:50 PM

Astronomy
Sci Advisor
PF Gold
P: 22,800





#2
Jul607, 09:14 PM

Astronomy
Sci Advisor
PF Gold
P: 22,800

I downloaded slides for 30 talksa lot of the presenters made their slides coherent and explicit enough to follow without the audio.
I picked around 10 of the invited plenary talks and 20 of the contributed. The contributed, by the younger people mostly, were often impressive. If you check out any of the talks slides and have a comment or a pointer to, like, page 6 of Kevin Vandersloot's talk where he says something especially interesting, please add it to this thread. I will pick out a few things as I read thru the talks. 



#3
Jul707, 12:38 AM

P: 716

Personally, I like Daniele Oriti's idea of applying condense matter physics principles to LQG with references to Volvovik's work. I also like Smolin's preon braiding idea. It doesn't seem to me there were any talks, by Andrew Randanomo or Eyo Ita, on current research into the Kodama wavefunction in LQG. 



#4
Jul707, 09:48 AM

Astronomy
Sci Advisor
PF Gold
P: 22,800

Loops '07 has slides for the talks (some audio as well)"A New Perspective on Covariant Canonical Gravity" concise and innovativedevelops his own version of the K. state. mathematically deeper than before, takes more risk (just my immediate impression) the young crop of people, like Johannes Tambornino, Bianca Dittrich, this guy,.. the field is attracting serious talent 



#5
Jul707, 10:42 AM

Astronomy
Sci Advisor
PF Gold
P: 22,800

so we are seeing the advance of coherent wavefronts of research check out the SUPERCOMPUTER bunch David Rideout's plenary talk contributed talks by Dan Christensen and by people in Dan Christensen's group: Wade Cherrington Igor Khavkine Josh Willis as far back as Johannes Kepler, calculation has LED to new formulas. you calculate a lot first and then comes analytic insight, and you get something that could have have been found with pencil and paper but somehow eluded earlier theorists, so that's a good thing to be pursuing. (Ashtekar and Bojowald's cosmology groups have also been running numerical models) 



#6
Jul707, 01:58 PM

Astronomy
Sci Advisor
PF Gold
P: 22,800

I didnt mean to suggest that computer numerical was the only thing happening, I just mentioned it as an important cluster of people and activity.
You ask about "most fruitful direction" and actually I don't see that as our job. As a BYSTANDER we can gauge the mass and momentum of a certain research drive. With some technical experience one can also hope to sense the intellectual caliber of some of the peoplewhat matters is the quality of the NEW people that you didnt know their names last year or the year before. Acceleration is based on the quality and originality of the new people entering the field. There are a lot of new ones just now. I feel comfortable trying to guess which of several papers might have the most research impact, but that is papers. A paper is a single finite thing. "Directions" are more abstract and harder for me to size up. Just talking about the mass and momentum of some line of researchif you look at the talks and sample the slides you can see two important GROUPS which are snowballing. People are joining Rovelli's effort to get spinfoam right. there are a halfdozen new young people there: Engle, Bianchi, Fairbairn, Pereira, Alesci... Of course that is a very crucial important effortif they can get it right then the whole Loop field is on solid footingand they just got newtons law, and graviton propagator, and npoint scatter functions, and special cases of good classical limit etc.signs are positive. And then the BojoAshtekar group in quantum cosmology has a lot of new volunteers. Let me list, some will have been around longer but a lot of us didnt notice until now... Kagan Hossain Skirzewski Hernandez Mulryne Nunes Shankaranarayanan Also Parampreet Singh has been working with both Ashtekar and Bojowald for 34 years now so he's almost "senior". I am just listing the comparatively new guys. I guess you have to study how to pronounce that long name, say Shankar, like "Ravi Shankar" the musician. and say Narayanan. and then put it together and say it fast Shankara Narayanan Shankaranaryanan. It gets easier after the 2nd or 3rd time. Anyway Bojowald has a pipeline tapped into a source of talenthe has Hermann Nicolai and Thomas Thiemann of the Albert Einstein Institute Potsdam sending him peopleor so I think. And he probably gets some recruiting help from Kastrup at Aachen Tech. Some how he is taking on new people. ============= Lee Smolin also has an impressive and growing group, and there one very obvious magnet is the Perimeter Institute environment itself which I think Lee has been an essential factor in creating. 


Register to reply 
Related Discussions  
speed of rotation of an audio record or audio tape  Classical Physics  13  
Smolin's Loops 07 talk is up (slides and audio), looks like a biggie  Beyond the Standard Model  8  
List of plenary talks at Loops '07 conference  Beyond the Standard Model  40  
Block slides 4ft down a smooth plane & then slides on a rough surface (0.6)  s = ?  Introductory Physics Homework  3  
Loops '05 recorded talks now available  Beyond the Standard Model  13 