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BtSM Event Announcements

by Doc Al
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marcus
#37
Nov21-12, 07:56 PM
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Update of the ILQGS Fall 2012 schedule. The schedule is now complete.

Sept. 4 Holonomy Spin Foam Models: Asymptotic Dynamics Frank Hellmann Albert Einstein Institute
Sept. 18 Flux coherent states Lorenzo Sindoni Albert Einstein Institute
Oct. 2 Lifting General Relativity to Observer Space Derek Wise FAU, Erlangen
Oct. 16 Horizon entropy from loop gravity Eugenio Bianchi Perimeter Institute
Oct. 30 Renormalization of Tensorial Group Field Theories Sylvain Carrozza Albert Einstein Institute
Nov 13 Twistorial structure of loop quantum gravity transition amplitudes Simone Speziale CPT-CNRS, Marseille
Nov. 27 Coarse graining: towards a cylindrically consistent dynamics Bianca Dittrich Perimeter Institute

http://relativity.phys.lsu.edu/ilqgs/ (online audio and slides PDF)

The topic of Dittrich's talk (coarse graining) relates to a paper she co-authored earlier this year:
http://arxiv.org/abs/1208.3388
Holonomy Spin Foam Models: Definition and Coarse Graining
Incidental information: Dittrich is one three Perimeter faculty on the committee organizing next year's Loops conference at PI, and also the senior person in charge of organizing LQG parallel sessions at the GR-20 conference to be held next year in Warsaw.

GR-20 Warsaw (week of 7 July):
http://gr20-amaldi10.edu.pl/index.php?id=18
Loops 2013 Perimeter Institute (week of 21 July):
http://www.perimeterinstitute.ca/conferences/loops-13
marcus
#38
Dec6-12, 03:08 PM
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Do we need a physics of PASSAGE?
http://prce.hu/centre_for_time/jtf/FullProgram.pdf
The "block universe" idea (with time as a pseudo-spatial "dimension") is under pressure, and it may (in time ) be modified, reformed, or replaced.
This month there is a conference in Capetown South Africa bringing together Philosophers Physicists Linguistics folks and others to discuss the current state of this challenge to the spacetime block.

The local host George Ellis co-authored "Large Scale Structure of Space-Time" with Stephen Hawking. Ellis now has his own challenge to the conventional block universe. The basic problem is that the conventional block is incompatible with quantum theory.

The physicists are an interesting bunch (note the Causal Sets people):
Carlo Rovelli
George Ellis
Rafael Sorkin
Faye Dowker
Dan Oriti
Edward Anderson
===quote==

Do We Need a Physics of ‘Passage’?
10 — 14 December, 2012 :: Vineyard Hotel & Spa, Capetown, South Africa
Philosophers: David Albert, Christophe Bouton, David Braddon-Mitchell, Jeremy Butterfield, Christoph Hoerl, *Luciano Floridi, Rick Grush, Nick Huggett, Kristie Miller, Wayne Myrvold, Huw Price, Dean Rickles, Don Ross, Jos Uffink.
Physicists: Edward Anderson, Fay Dowker, Avshalom Elitzur, George Ellis, Daniele Oriti, Carlo Rovelli, Rafael Sorkin.
Psychologists & linguists: Alex Holcombe, Teresa McCormack, Kia Nobre, Chris Sinha.
...
...Twentieth century physics is often thought to have established that there is no distinction between past, present and future, no flow of time, and no fundamental direction of time. This viewpoint — the Block Universe, as it is sometimes called — is reflected in remarks such as the following:
We physicists know that the distinction between past, present and future is only a stubbornly persistent illusion. (Einstein)

The objective world simply is, it does not happen. Only to the gaze of my consciousness, crawling upward along the world-line of my body, does a section of the world come to life as a fleeting image in space which continuously changes in time. (Weyl)

...
However, the Block Universe view is under challenge from within physics, from theorists such as George Ellis, Lee Smolin and Chris Fuchs, who believe that in leaving out these elements, physics is missing something essential.

Thus there is a disagreement within physics about the proper aims of physics, in the case of the study of time. We believe that this is a clear case in which in order the resolve the disagreement within physics, we need to step back from physics and consider the question of 'what belongs where' in the study of time from a broader interdisciplinary perspective—informed, among other things, by expertise from the psychology of temporal perception and from the metaphysics of time.
...
...
===endquote===
marcus
#39
Dec10-12, 06:49 PM
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An April 2013 conference presenting analysis of the initial results from the Planck mission of the European Space Agency
http://congrexprojects.com/13a11
(Thanks to Skydive Phil for spotting this)
By mapping the CMB background of ancient light, in higher resolution than was possible with the WMAP mission, Planck may help constrain quantum gravity/cosmology models of the start of expansion--bounce models in particular--and inflation.
marcus
#40
Jan4-13, 12:22 PM
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http://relativity.phys.lsu.edu/ilqgs/schedulesp13.html
ILQGS Spring 2013 Schedule

DATE	Seminar Title	                    Speaker 	     Institution
Jan 29 Entanglement in loop quantum gravity Eugenio Bianchi  Perimeter Institute
Feb 12 Dynamical chaos and the volume gap   Hal Haggard	     CPT Marseille
Feb 26 Gravity electroweak unification	    Stephon Alexander  Haverford College
Mar 12	 
Mar 26 Bianchi I LQC	                    Brajesh Gupt     LSU
Apr  9 TBA	                            Karim Noui	     Univ Tours
Apr 23	 
May  7
marcus
#41
Jan10-13, 02:55 PM
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Another ILQGS timeslot filled in today.
http://relativity.phys.lsu.edu/ilqgs/schedulesp13.html
ILQGS Spring 2013 Schedule

DATE	Seminar Title	                    Speaker 	     Institution
Jan 29 Entanglement in loop quantum gravity Eugenio Bianchi  Perimeter Institute
Feb 12 Dynamical chaos and the volume gap   Hal Haggard	     CPT Marseille
Feb 26 Gravity electroweak unification	    Stephon Alexander  Haverford College
Mar 12	 
Mar 26 Bianchi I LQC	                    Brajesh Gupt     LSU
Apr  9 TBA	                            Karim Noui	     Univ Tours
Apr 23 TBA                                  Martin Bojowald  Penn State	 
May  7
marcus
#42
Jan20-13, 12:12 PM
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ILQGS Spring 2013 Schedule
http://relativity.phys.lsu.edu/ilqgs/schedulesp13.html
DATE	Seminar Title	                    Speaker 	     Institution
Jan 29 Entanglement in loop quantum gravity Eugenio Bianchi  Perimeter Institute
Feb 12 Dynamical chaos and the volume gap   Hal Haggard	     CPT Marseille
Feb 26 Gravity electroweak unification	    Stephon Alexander  Haverford College
Mar 12 Quantum reduced loop gravity	    E.Alesci/F.Cianfrani Univ. Erlangen 
Mar 26 Bianchi I LQC	                    Brajesh Gupt     LSU
Apr  9 TBA	                            Karim Noui	     Univ Tours
Apr 23 TBA                                  Martin Bojowald  Penn State	
May  7  unfilled timeslot
marcus
#43
Feb4-13, 10:39 AM
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http://umbriel.phy.hr/mccqg2/index.p...ific-programme
June conference, Classical and Quantum Gravity, in scenic spot on Adriatic coast

Topics:
Alternative Theories of Gravity
Black Holes and Compact Objects
Cosmology
Gravity and Strings
Quantum Gravity
Experimental Gravity

Speakers include:
L. Amendola (Heidelberg U., Germany)
A. Ashtekar (Penn State U., USA)
R. Brandenberger (Mc Gill U., Canada)
J. De Boer (U. of Amsterdam, The Netherlands)
P. Dominis-Prester (U. Rijeka, Croatia)
G. Dvali (LMU and MPI Munich & NYU New York)
G. Ellis (Cape Town U., South Africa)
V. Ferrari (U. La Sapienza, Rome, Italy)
D. Grumiller (VUT, Austria)
T. Jacobson (Maryland U., USA)
C. Kiefer (Koln U, Germany)
S. Mathur (Ohio State U., USA)
R. Percacci (Sissa, Italy)
M. Rangamani (Durham U., UK)
M. Sakellariadou (King's College, UK)
B.S. Sathyaprakash (Cardiff U., UK)
W. Song (Harvard U., USA)
H. Štefančić (RBI, Zagreb, Croatia)
J. Zanelli (CECs, Valdivia, Chile)
===========================
Quantum Geom. and Matter Workshop at the SISSA, Trieste, in April.
http://www.math.sissa.it/workshop/qu...try-and-matter

Monday thru Friday 8 - 12 April.
marcus
#44
Feb8-13, 07:13 AM
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PF Gold
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ILQGS Spring 2013 Schedule
http://relativity.phys.lsu.edu/ilqgs/schedulesp13.html
DATE	Seminar Title	                    Speaker 	     Institution
Jan 29 Entanglement in loop quantum gravity Eugenio Bianchi  Perimeter Institute
Feb 12 Dynamical chaos and the volume gap   Hal Haggard	     CPT Marseille
Feb 26 Gravity electroweak unification	    Stephon Alexander  Haverford College
Mar 12 Quantum reduced loop gravity	    E.Alesci/F.Cianfrani Univ. Erlangen 
Mar 26 Bianchi I LQC	                    Brajesh Gupt     LSU
Apr  9 TBA	                            Karim Noui	     Univ Tours
Apr 23 TBA                                  Martin Bojowald  Penn State	
May  7 Emergence of BF theories and gravi-weak Plebanski models from spinors
					    Antonino Marciano  Dartmouth College
marcus
#45
Feb17-13, 06:06 PM
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Planck spacecraft results to be announced on 21 March, see this URL:
http://www.rssd.esa.int/index.php?project=planck
To be followed, the first week of April, by this conference that Skydivephil already told us about:
http://congrexprojects.com/13a11
marcus
#46
Mar28-13, 09:56 PM
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PF Gold
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Update of ILQGS Spring 2013 Schedule
http://relativity.phys.lsu.edu/ilqgs/schedulesp13.html
DATE	Seminar Title	                    Speaker 	     Institution
Jan 29 Entanglement in loop quantum gravity Eugenio Bianchi  Perimeter Institute
Feb 12 Dynamical chaos and the volume gap   Hal Haggard	     CPT Marseille
Feb 26 Gravity electroweak unification	    Stephon Alexander  Haverford College
Mar 12 Quantum reduced loop gravity	    E.Alesci/F.Cianfrani Univ. Erlangen 
Mar 26 Bianchi I LQC	                    Brajesh Gupt     LSU
Apr  9 Black holes w.complex Barbero-Immirzi parameter Karim Noui Univ Tours
Apr 23 TBA                                  Martin Bojowald  Penn State	
May  7 Emergence of BF theories and gravi-weak Plebanski models from spinors
					    Antonino Marciano  Dartmouth College
marcus
#47
Apr12-13, 07:58 PM
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PF Gold
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The ILQGS Spring 2013 Schedule is now complete.
http://relativity.phys.lsu.edu/ilqgs/schedulesp13.html
DATE	Seminar Title	                    Speaker 	     Institution
Jan 29 Entanglement in loop quantum gravity Eugenio Bianchi  Perimeter Institute
Feb 12 Dynamical chaos and the volume gap   Hal Haggard	     CPT Marseille
Feb 26 Gravity electroweak unification	    Stephon Alexander Dartmouth College
Mar 12 Quantum reduced loop gravity	    E.Alesci/F.Cianfrani Univ. Erlangen 
Mar 26 BianchiI LQC,Kasner shifts&inflation Brajesh Gupt     LSU
Apr  9 Hamiltonian spinfoam gravity         Wolfgang Wieland CPT Marseille
Apr 23 A Loop quantum multiverse?           Martin Bojowald  Penn State	
May  7 Emergence of BF theories and gravi-weak Plebanski models from spinors
					    Antonino Marciano Dartmouth College
marcus
#48
Apr23-13, 03:08 PM
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PF Gold
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The ILQGS Spring 2013 Schedule has been revised.
http://relativity.phys.lsu.edu/ilqgs/
DATE	Seminar Title	                    Speaker 	     Institution
Jan 29 Entanglement in loop quantum gravity Eugenio Bianchi  Perimeter Institute
Feb 12 Dynamical chaos and the volume gap   Hal Haggard	     CPT Marseille
Feb 26 Gravity electroweak unification	    Stephon Alexander Dartmouth College
Mar 12 Quantum reduced loop gravity	    E.Alesci/F.Cianfrani Univ. Erlangen 
Mar 26 BianchiI LQC,Kasner shifts&inflation Brajesh Gupt     LSU
Apr  9 Hamiltonian spinfoam gravity         Wolfgang Wieland CPT Marseille
Apr 23 A Loop quantum multiverse?           Martin Bojowald  Penn State	
May  7 The imaginary part of the GR action and large-spin 4-simplex amplitude
                                            Yasha Neiman PennState
marcus
#49
Aug9-13, 08:11 PM
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This alphabetical index of pirsa recordings of the Loops 2013 talks given in parallel session has proven useful and so far is not available at the conference website, so I'll post it here:

Niayesh Afshordi, Perimeter Institute http://pirsa.org/13070044 (20:00)
Emanuele Alesci , University of Warsaw http://pirsa.org/13070039 (60:00)
Giovanni Amelino-Camelia, La Sapienza University of Rome http://pirsa.org/13070077 (57:30)
Mohamed Anber, University of Toronto http://pirsa.org/13070089 (0)
Fabio Anza, Universit di Pisa http://pirsa.org/13070086 (84:00)
Mehdi Assanioussi, University of Warsaw http://pirsa.org/13070053 (60:20)
Valerio Astuti, La Sapienza University of Rome http://pirsa.org/13070090 (44:00)
Angel Ballesteros, Universidad de Burgos http://pirsa.org/13070077 (20:10)
Andrzej Banburski, Perimeter Institute http://pirsa.org/13070086 (0)
Aristide Baratin, Albert Einstein Institute http://pirsa.org/13070086 (22:00)
Julian Barbour, University of Oxford http://pirsa.org/13070040 (0)
Leonardo Barcaroli http://pirsa.org/13070073 (50:00)
Joseph Ben Geloun, Perimeter Institute http://pirsa.org/13070076 (59:30)
Dario Benedetti http://pirsa.org/13070051 (0)
Paolo Bertozzini, Thammasat University http://pirsa.org/13070088 (46:50)
Stefano Bianco, La Sapienza University of Rome http://pirsa.org/1307077 (41:00)
Norbert Bodendorfer, Pennsylvania State University http://pirsa.org/13070054 (60:00)
Martin Bojowald, Pennsylvania State University http://pirsa.org/13070039 (0)
Julien Bolmont, LPNHE & UPMC http://pirsa.org/13070052 (21:00)
Valentin Bonzom, Perimeter Institute http://pirsa.org/13070072 (0)
Suddhsattwa Brahma, Pennsylvania State University http://pirsa.org/13070074 (21:10)
Thomas Cailleteau, Pennsylvania State University http://pirsa.org/13060026 (0)
Miguel Campiglia, Raman Research Institute http://pirsa.org/13070078 (37:30)
Sylvain Carrozza, Albert Einstein Institute http://pirsa.org/1307055 (35:10)
Atousa Chaharsough Shirazi, Florida Atlantic University http://pirsa.org/13070086 (64:00)
Lin-Qing Chen, Perimeter Institute http://pirsa.org/13070052 (95:00)
Goffredo Chirco, Aix-Marseille University http://pirsa.org/13070085 (0)
Christopher Coleman-Smith, Duke University http://pirsa.org/13070042 (80:30)
Adriano Contillo, Radboud University Nijmegen http://pirsa.org/13060026 (84:30)
Joshua Cooperman, University of California, Davis http://pirsa.org/13070055 (54:40)
Antonin Coutant, Albert Einstein Institute http://pirsa.org/13070042 (42:00)
Andrea Dapor, University of Warsaw http://pirsa.org/13070043 (77:30)
Stephane Dartois, ENS de Lyon http://pirsa.org/13070076 (36:00)
Ghanashyam Date, The Institute of Mathematical Sciences http://pirsa.org/13070079 (57:30)
Jacobo Diaz Polo, Louisiana State University http://pirsa.org/13070090 (20:50)
Bianca Dittrich, Perimeter Institute http://pirsa.org/13070079 (17:40)
Andreas Doering, University of Oxford http://pirsa.org/13070088 (20:40)
Maite Dupuis, University of Erlangen-Nuernberg http://pirsa.org/13070057 (38:00)
Christopher Duston, Florida State University http://pirsa.org/13070085 (43:20)
Astrid Eichhorn, Perimeter Institute http://pirsa.org/13070073 (62:00)
Jonathan Engle, Florida Atlantic University http://pirsa.org/13070039 (83:00)
Kevin Falls, University of Sussex http://pirsa.org/13070089 (44:00)
Laurent Freidel, Perimeter Institute http://pirsa.org/13070042 (0)
Ivette Fuentes, University of Nottingham http://pirsa.org/13070073 (0)
Marc Geiller, Institute for Gravitation and the Cosmos http://pirsa.org/13070054 (75:00)
Steffen Gielen, Perimeter Institute http://pirsa.org/13070039 (39:00)
Lisa Glaser, Niels Bohr Institue http://pirsa.org/13070075 (86:00)
Julien Grain, Institute for Space Astrophysics http://pirsa.org/13070043 (37:30)
Jonathan Granot, Open University of Israel http://pirsa.org/13070052 (0)
Sean Gryb, Radboud University Nijmegen http://pirsa.org/13070044 (0)
Giulia Gubitosi, La Sapienza University of Rome http://pirsa.org/13070052 (49:00)
Hal Haggard, Centre de Physique Theorique http://pirsa.org/13070054 (20:00)
Maximilian Hanusch, University of Paderborn http://pirsa.org/13070078 (21:00)
Bruno Hartmann, Perimeter Institute http://pirsa.org/13070088 (68:10)
Jeffrey Hazboun, Utah State University http://pirsa.org/13070044 (57:40)
Tobias Henz, University of Heidelberg http://pirsa.org/13070089 (23:00)
Jeff Hnybida, Perimeter Institute http://pirsa.org/13070045 (20:30)
Philipp Hoehn, Perimeter Institute http://pirsa.org/13070075 (0)
Matthew Hogan, Florida Atlantic University http://pirsa.org/13070087 (51:00)
Giorgio Immirzi, INFN http://pirsa.org/13070045 (0)
Matt Johnson, Perimeter Institute http://pirsa.org/13070058 (0)
Mikhail Kagan, Pennsylvania State University http://pirsa.org/13070053 (43:30)
Wojciech Kaminski, Perimeter Institute http://pirsa.org/13070041 (97:00)
Marcin Kisielowski, University of Warsaw http://pirsa.org/13060026 (63:40)
Tim Koslowski, University of New Brunswick http://pirsa.org/13070040 (31:00)
Thomas Krajewski, Centre de Physique Theorique http://pirsa.org/13070072 (81:40)
Manuel Kramer, University of Cologne http://pirsa.org/13070058 (22:20)
Eugene Kur, University of California, Berkeley http://pirsa.org/13070085 (24:00)
Suzanne Lannery, University of Erlangen-Nuernberg http://pirsa.org/13070078 (0)
Antony Lee, University of Nottingham http://pirsa.org/13070042 (62:50)
Jerzy Lewandowski, University of Warsaw http://pirsa.org/13070053 (0)
Linda Linsefors, LPSC-Grenoble/CNRS http://pirsa.org/13070043 (56:30)
Kinjalk Lochan, Tata Institute of Fundamental Research http://pirsa.org/13070046 (61:30)
Niccol Loret, La Sapienza University of Rome http://pirsa.org/13070056 (33:20)
Matteo Giuseppe Lostaglio, Imperial College London http://pirsa.org/13070040 (84:00)
Yongge Ma, Beijing Normal University http://pirsa.org/13070078 (57:00)
Seth Major, Hamilton College http://pirsa.org/13070090 (62:50)
Antonino Marciano, Fudan University & INFN http://pirsa.org/13070073 (27:30)
Mercedes Martin Benito, Perimeter Institute http://pirsa.org/13070055 (0)
Eduardo Martin-Martinez, Perimeter Institute & Institute for Quantum Computing http://pirsa.org/13060026 (41:20)
Daniel Martin de Blas, Instituto de Estructura de la Materia http://pirsa.org/13060026 (20:00)
Guillermo Antonio Mena Marugan, Instituto de Estructura de la Materia http://pirsa.org/13070058 (60:30)
Flavio Mercati, Perimeter Institute http://pirsa.org/13070040 (62:00)
Aleksandar Mikovic, Lusofona University http://pirsa.org/13070045 (62:00)
Jonah Miller, University of Colorado http://pirsa.org/13070075 (42:10)
Djordje Minic, Virginia Tech http://pirsa.org/13070073 (84:00)
Edison Montoya, Instituto de Fisica y Matematicas http://pirsa.org/13070087 (26:00)
Tim Morris, University of Southampton http://pirsa.org/13070051 (40:50)
Markus Mueller, Perimeter Institute http://pirsa.org/13070084 (20:40)
Yasha Neiman, Pennsylvania State University http://pirsa.org/13070054 (41:20)
Robert Oeckl, Centro de Ciencias Matematicas http://pirsa.org/13070084 (0)
Javier Olmedo, Universidad de la Repblica de Uruguay http://pirsa.org/13070074 (63:00)
Jonathan Oppenheim, University College London http://pirsa.org/13070084 (70:00)
Daniele Oriti, Albert Einstein Institute http://pirsa.org/13070072 (21:30)
Prince Osei http://pirsa.org/13070056 (72:30)
Dine Ousmane Samary, International Chair in Mathematical Physics and Applications http://pirsa.org/13070076 (0)
Giovanni Palmisano, La Sapienza University of Rome http://pirsa.org/13070052 (75:00)
Daniele Pranzetti, Albert Einstein Institute http://pirsa.org/13070054 (0)
Jacek Puchta http://pirsa.org/13070079 (0)
Jorge Pullin, Louisiana State University http://pirsa.org/13070046 (0)
Matti Raasakka, University Paris-Nord XIII http://pirsa.org/13070072 (61:50)
Saeed Rastgoo http://pirsa.org/13070074 (82:10)
Michael Reisenberger, Instituto de Física Facultad de Ciencias http://pirsa.org/13070090 (0)
Trevor Rempel, Perimeter Institute http://pirsa.org/13070056 (17:00)
Aldo Riello, Aix-Marseille University http://pirsa.org/13070041 (38:00)
Andreas Rodigast, Heidelberg University http://pirsa.org/13070051 (79:50)
James Ryan, Albert Einstein Institute http://pirsa.org/13070072 (42:40)
David Schroeren, Balliol College http://pirsa.org/13070088 (0)
Bernd Schroers, Heriot-Watt University http://pirsa.org/13070056 (48:20)
Sanjeev Seahra, University of New Brunswick http://pirsa.org/13070058 (40:00)
Giuseppe Sellaroli, University of Waterloo http://pirsa.org/13070057 (58:30)
Vasudev Shyam, The Center For Fundamental Research and Creative Education http://pirsa.org/13070044 (37:00)
Lorenzo Sindoni, Albert Einstein Institute http://pirsa.org/13070076 (16:00)
Matteo Smerlak, Albert Einstein Institute http://pirsa.org/13070046 (16:50)
Lee Smolin, Perimeter Institute http://pirsa.org/13070084 (95:00)
Robert Spekkens Perimeter Institute http://pirsa.org/13070084 (42:30)
Simone Speziale, Centre de Physique Theorique http://pirsa.org/13070041 (0)
Sebastian Steinhaus, Perimeter Institute http://pirsa.org/13070041 (72:00)
Alexander Stottmeister, University of Erlangen-Nuernberg http://pirsa.org/13070074 (40:10)
Sumati Surya, Raman Research Institute http://pirsa.org/13070079 (37:00)
Jedrzej Swiezewski, University of Warsaw http://pirsa.org/13070053 (82:00)
Karim Thebault, LMU Munich http://pirsa.org/13070040 (62:00)
Johannes Thurigen, Albert Einstein Institute http://pirsa.org/13070085 (69:50)
Casey Tomlin, Pennsylvania State University http://pirsa.org/13070074 (0)
Aaron Trout, Chatham University http://pirsa.org/13070075 (61:10)
Madhavan Venkatesh, Centre for Fundamental Research and Creative Education http://pirsa.org/13070057 (22:00)
Francesca Vidotto, Radboud University Nijmegen http://pirsa.org/13070087 (0)
Hans Westman, Instituto de Fisica Fundamental http://pirsa.org/13070077 (0)
Wolfgang Martin Wieland, Aix-Marseille University http://pirsa.org/13070045 (39:00)
Edward Wilson-Ewing, Louisiana State University http://pirsa.org/13070043 (0)
Yuki Yokokura, Kyoto University http://pirsa.org/13070046 (42:00)
Mingyi Zhang, Centre de Physique Theorique http://pirsa.org/13070086 (40:00)
Antonia Zipfel, University of Erlangen-Nuernberg http://pirsa.org/13070086 (0)
Jonathan Ziprick, Perimeter Institute http://pirsa.org/13070057 (0)

For the most part these are 20 minute talks, in sets of 4 or 5 on one recording. The numbers in parentheses give the approximate minute on the recording when the talk starts.
When you go to the pirsa recording, if the talk you want is not the first one of the set, you may need to allow time for BUFFERING: start the play, mute the sound, and do something else for a few minutes. Buffering time is roughly 10X faster than real time.
The abstracts for the Loops 2013 parallel sessions are listed alphabetically by speaker:
http://www.perimeterinstitute.ca/sit...bstracts_7.pdf
For a roughly chronological list of of pirsa recordings of Loops 2013 talks go here:
http://pirsa.org/C13029
of click on "videos" at the main Loops 2013 website:
http://www.perimeterinstitute.ca/conferences/loops-13
marcus
#50
Sep18-13, 01:41 PM
Astronomy
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PF Gold
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P: 23,101
A preliminary version of the ILQGS Fall 2013 Schedule has been posted.
http://relativity.phys.lsu.edu/ilqgs/
For continuity here is the Spring 2013 schedule.

DATE	Seminar Title	                    Speaker 	      Institution
Jan 29 Entanglement in loop quantum gravity Eugenio Bianchi  Perimeter Institute
Feb 12 Dynamical chaos and the volume gap   Hal Haggard	     CPT Marseille
Feb 26 Gravity electroweak unification	    Stephon Alexander Dartmouth College
Mar 12 Quantum reduced loop gravity	    E.Alesci/F.Cianfrani Univ. Erlangen 
Mar 26 BianchiI LQC,Kasner shifts&inflation Brajesh Gupt     LSU
Apr  9 Hamiltonian spinfoam gravity         Wolfgang Wieland CPT Marseille
Apr 23 A Loop quantum multiverse?           Martin Bojowald  Penn State	
May  7 The imaginary part of the GR action and large-spin 4-simplex amplitude
                                            Yasha Neiman PennState
Here's the Fall schedule as it stands so far.

DATE	Seminar Title	                                 Speaker      Institution
Sep 03 Multiymplectic effective General Boundary Field Theory J.Zapata   Morelia
Sep 17 Thermality of spherical causal domains–entanglement spectrum H.Haggard Marseille
Oct 01 BH entropy from LQG: higher dim. and gen. theories N.Bodendorfer PennState
Oct 15 TBA	                                     Derek Wise	        Erlangen 
Oct 29 TBA	                                     Asieh Karami	 Morelia
Nov 12 What can we learn from shape dynamics?        Tim Koslowski  NewBrunswick
Nov 26 TBA	                                     Johannes Thürigen PotsdamAEI	
Dec 10 TBA	                                     Saeed Rastgoo	 Morelia
I notice 3 talks from the Morelia campus of UNAM, which is where Robert Oeckl is based (General Boundary Formulation of QFT). The 3 September talk is about GBF, it might be useful to review Oeckl's talk about GBF that is linked in the preceding post #49. The General Boundary formalism seems to be the natural way to do both transition amplitudes and statistical mechanics in a general covariant way. That is, with the focus being on processes, with no preferred time, rather than on a system's state at some designated time.

In connection with the list of parallel session talks in post #49, I note that ATOUSA SHIRAZI who gave a very interesting talk on her work at Florida Atlantic with Jon Engle was mistakenly alphabetized in the C bunch rather than the S bunch.
Atousa Chaharsough Shirazi, Florida Atlantic University http://pirsa.org/13070086 (64:00)
marcus
#51
Oct10-13, 10:24 PM
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PF Gold
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The title of the talk Derek Wise is scheduled to give on Tuesday (in 5 days from now) has been posted. Here's the current ILQGS schedule as it stands so far.

DATE	Seminar Title	                                 Speaker      Institution
Sep 03 Multiymplectic effective General Boundary Field Theory J.Zapata   Morelia
Sep 17 Thermality of spherical causal domains–entanglement spectrum H.Haggard Marseille
Oct 01 BH entropy from LQG: higher dim. and gen. theories N.Bodendorfer  PennState
Oct 15 Holographic SR: observer space from conformal geometry Derek Wise Erlangen 
Oct 29 TBA	                                     Asieh Karami	 Morelia
Nov 12 What can we learn from shape dynamics?        Tim Koslowski     NewBrunswick
Nov 26 TBA	                                     Johannes Thürigen PotsdamAEI	
Dec 10 TBA	                                     Saeed Rastgoo	 Morelia
http://relativity.phys.lsu.edu/ilqgs/

http://arxiv.org/abs/1305.3258
Holographic Special Relativity
Derek K. Wise
(Submitted on 14 May 2013)
We reinterpret special relativity, or more precisely its de Sitter deformation, in terms of 3d conformal geometry, as opposed to (3+1)d spacetime geometry. ...
... We conjecture a relationship between this kind of "holographic relativity" and the "shape dynamics" proposal of Barbour and collaborators, in which conformal space takes the place of spacetime in general relativity. We also briefly survey related pictures of observer space, including the AdS analog and a representation related to twistor theory.
17 pages, 5 illustrations
MTd2
#52
Oct14-13, 08:54 AM
PF Gold
P: 1,957
I found this:

http://www.claymath.org/workshops/CCC/
marcus
#53
Oct14-13, 02:28 PM
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PF Gold
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P: 23,101
Quote Quote by MTd2 View Post
Interesting find! Here is the poster, with an elaborate drawing by Penrose illustrating his CCC idea:
http://www.claymath.org/workshops/CCC/CCCposter.jpg
You can click on it to enlarge it, making it more legible.

I see that among those on the discussion panel and/or giving talks were Kris Meissner (Warsaw), George Ellis (Capetown), Ted Newman (Pittsburg). Meissner posted a paper in July presenting new statistical evidence of circular ripples in the CMB that might have emanated from events in prior aeon, thus supporting the CCC conjecture. The site has abstracts for some of the talks. Here is a partial list of titles:

9:00 Roger Penrose On CCC's motivations, equations, observational implications, and future research
10:00 Vahe Gurzadyan Positive lambda, the 2nd law and observations
11:30 Krzysztof Meissner
2:00 Paul Tod The equations of CCC
3:00 Michael Eastwood Twistors, tractors, and conformally invariant operators
4:30 Rod Gover Klein, Poincaré, and geometry at infinity

9:00 Gabriele Veneziano A bouncing cosmology from string theory's new symmetries?
10:00 Kostas Skenderis Holography and the very early universe
11:30 Tsou Sheung Tsun A theory of Fermion masses and mixing
2:00 Helmut Friedrich Existence and asymptotic behaviour of space-time with positive lambda
3:00 Lars Andersson
4:30 Tim Adamo Gravity in twistor space

9:00 Claude LeBrun
10:00 Jörg Frauendiener
11:30 Laszlo Szabados On the total mass of closed universes with positive cosmological constant
2:00 Neil Turok
3:00 George Ellis Indications that gravity is essentially a conformal theory
marcus
#54
Jan14-14, 06:23 PM
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PF Gold
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P: 23,101
This semester's schedule for the International LQG Seminar was posted today.
To follow the ILQGS series, go here:
http://relativity.phys.lsu.edu/ilqgs/
Links to audio and to slides PDF usually appear there around the time that the online seminar is scheduled to be given. Get the slides on a separate window before you start the audio, so you will be able to scroll through the slides along with the speaker.
==quote==
ILQGS SEMINAR SCHEDULE
SPRING 2014
1/21  Matter matters in asymptotically safe quantum gravity  P. Dona (Sissa)
2/4   TBA	 	 	 	 	 B. Dittrich (Perimeter)
2/18  TBA	 	 	 	 	 S. Steinhaus (Perimeter)
3/4  Simplicity constraints in spin foam models  M. Geiller, S. Speziale (PSU,Marseille)
3/18 S-matrices for General Boundary QFT on Anti de Sitter spacetime  M. Dohse (Morelia)
4/1  Continuum limit and renormalization  	 L. Freidel (Perimeter)
4/15  Linking canonical and covariant LQG  	 A. Zipfel (Erlangen)
4/29  LQC and the very early universe I.Agullo, A.Barrau, G.Mena (LSU, Grenoble, Madrid)
5/13  Hawking radiation in LQG	 	 	 J. Pullin (LSU)
==endquote==


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