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segunda-feira, 31 de agosto de 2015
Collaborative Spectrum Sharing | Horizon Prizes - Research & Innovation - European Commission
Collaborative Spectrum Sharing | Horizon Prizes - Research & Innovation - European Commission: "Collaborative spectrum sharing - € 500 000"
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Breaking the optical transmission barriers | Horizon Prizes - Research & Innovation - European Commission
Breaking the optical transmission barriers | Horizon Prizes - Research & Innovation - European Commission: "Breaking the optical transmission barriers - € 500 000"
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Better use of Antibiotics | Horizon Prizes - Research & Innovation - European Commission
Better use of Antibiotics | Horizon Prizes - Research & Innovation - European Commission: "Better use of antibiotics - €1 million"
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Food Scanner | Horizon Prizes - Research & Innovation - European Commission
Food Scanner | Horizon Prizes - Research & Innovation - European Commission: "Food Scanner - € 1 Million"
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GPPQ
GPPQ: "
Oportunidades, desafios e perspetivas de financiamento, Programa de Trabalhos de 2016, Nanotecnologia, Materiais Avançados, Fabrico e Processos Avançados, Biotecnologia e Bioeconomia"
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We are the international group of theoretical physicists assembled in Stockholm to work on the paradoxes of black holes, hawking radiation, and the deep mysteries of the Universe. Ask us anything! : IAmA
We are the international group of theoretical physicists assembled in Stockholm to work on the paradoxes of black holes, hawking radiation, and the deep mysteries of the Universe. Ask us anything! : IAmA:
https://www.reddit.com/r/IAmA/comments/3iuf6c/we_are_the_international_group_of_theoretical/
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https://www.reddit.com/r/IAmA/comments/3iuf6c/we_are_the_international_group_of_theoretical/
We're here at the Nordic Institute for Theoretical Physics (NORDITA) ready to take your questions.
We spent this past week working on some of the most challenging questions in theoretical physics. Last Tuesday, our colleague Stephen Hawking presented to us his latest idea to solve the growing paradoxes of black hole physics. We discussed this, and many other ideas, that may light the path towards a deeper understanding of black holes... and perhaps even point us towards the holy grail of physics. The so-called, "Theory of Everything"!
Could black hole Hawking Radiation be a "super-translation" of in-falling matter? Why does the Universe conserve information? Is "information" a physical object or just an idea? Do collapsing black holes bounce and become a super slow-motion white holes? Can black holes have an infinite amount of charge on their surfaces? Or, could black holes not exist and really be “GravaStars” in disguise? We’re trying to find out! Ask us anything!
Special thanks to conference organizers Nordita, UNC-Chapel Hill, The University of Stockholm, and facilitation by KTH Royal Institute of Technology.
AMA Participants so-far:
- Malcolm J. Perry
String Theorist
Professor of Theoretical Physics, Cambridge University
Chief Collaborator with Stephen Hawking and Andy Strominger on new idea involving super-translations in Black Hole physics. - Katie Freese
Director of The Nordic Institute of Theoretical Physics
George Eugene Uhlenbeck Professor of Physics at University of Michigan
Founder of the theory of “Natural Inflation."
Author of first scientific paper on Dark Stars.
Author of “The Cosmic Cocktail: Three Parts Dark Matter.” - Sabine Hossenfelder
Assistant professor for high energy physics and freelance science writer
The Nordic Institute for Theoretical Physics (Nordita)
Blogs at backreaction.blogspot.com - Paulo Vargas Moniz
Chair of department of Gravitation and Physics
University of Beira Interior, Portugal
Author "Quantum Cosmology" Vol I, Vol II.
Author of "Classical and Quantum Gravity" - Carlo Rovelli
Theoretical Physicist
AIX-Marseille University
Author "7 Brief Lectures in Physics"
Co-founder of Loop Quantum Gravity. - Leo Stodolsky
Emeritus Director
The Max Planck Institute
Originator of methods for detecting dark matter in Earth-based laboratories - Francesca Vidotto
NWO Veni Fellow
Radboud University Nijmegen
Author of “Covariant Loop Quantum Gravity.”
Author of the first scientific paper proposing Planck Stars - Kelly Stelle
Professor of physics
Imperial College of London - Bernard Whiting
Professor of Gravitational and Quantum Physics
University of Florida - Doug Spolyar
Oskar Kelin center fellow of cosmology
Co-author of first paper on Dark Stars - Emil Mottola, particle cosmologist
Los Alamos National Laboratory
Author of first paper on GravaStars - Ulf Danielsson
Professor of Physics
Uppsala University
Leading expert of String Cosmology
Recipient of the Göran Gustafsson Prize
Recipient of the Thuréus Prize - Yen Chin Ong
Theoretical Physicist
Nordita Fellow - Celine Weimer
Physicist
The Un-firewalled
Queen of the Quark-Gluon Plasma, the CMB Anisotropies, and of the First Baryons
Queen of Neutrinos
Khaleesi of the Great Universal Wave Function
Breaker of Entanglement
Mother of Dragons
KTH Royal Institute of Technology - Tony Lund
Writer-Director
“Through the Wormhole: With Morgan Freeman”
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domingo, 30 de agosto de 2015
[1508.06951] Mathematical Foundations of Quantum Mechanics: An Advanced Short Course
[1508.06951] Mathematical Foundations of Quantum Mechanics: An Advanced Short Course: "Mathematical Foundations of Quantum Mechanics: An Advanced Short Course"
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'via Blog this' The Honourable Schoolboy
sexta-feira, 28 de agosto de 2015
quinta-feira, 27 de agosto de 2015
quarta-feira, 26 de agosto de 2015
terça-feira, 25 de agosto de 2015
sábado, 22 de agosto de 2015
sexta-feira, 21 de agosto de 2015
quinta-feira, 20 de agosto de 2015
quarta-feira, 19 de agosto de 2015
terça-feira, 18 de agosto de 2015
sábado, 15 de agosto de 2015
terça-feira, 11 de agosto de 2015
Jim Hartle on QG and Cosmology
https://youtu.be/xcJ7diTtURc
Many thanks to Tahereh Rostami for sharing
Into The Silence: The Great War, Mallory and the Conquest of Everest: Amazon.co.uk: Wade Davis: 9780099563839: Books
Into The Silence: The Great War, Mallory and the Conquest of Everest: Amazon.co.uk: Wade Davis: 9780099563839: Books:
One must take into account that there were no Google maps or the sort back in the early 1920's.
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One must take into account that there were no Google maps or the sort back in the early 1920's.
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Wolf Hall: Amazon.co.uk: Hilary Mantel: 9780007230204: Books
Wolf Hall: Amazon.co.uk: Hilary Mantel: 9780007230204: Books:
She is a SUPERB writer!!!!!!!!!!!!!!
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She is a SUPERB writer!!!!!!!!!!!!!!
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Stoner: A Novel (Vintage Classics): Amazon.co.uk: John Williams, John McGahern: 9780099561545: Books
Stoner: A Novel (Vintage Classics): Amazon.co.uk: John Williams, John McGahern: 9780099561545: Books:
The saddest, the bitter-sweet, still enjoyable reading I have ever done about academic life.
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The saddest, the bitter-sweet, still enjoyable reading I have ever done about academic life.
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segunda-feira, 10 de agosto de 2015
Article series : Nature Reviews Cancer
Article series : Nature Reviews Cancer: "Cancer origins
A clearer understanding of the biological underpinnings of cancer origins might help us design more effective cancer prevention methods or improve early detection of tumours that are likely to become malignant. Furthermore, delineating the cell of origin of a specific tumour and the evolutionary changes that underlie its development should also improve our ability to effectively treat that tumour. All of these goals will be aided by increased knowledge of the early pre-neoplastic changes in cells that have the capacity to become tumorigenic, determining the cells of origin of different cancer types, and understanding the interactions of pre-neoplastic or tumour cells with each other as well as with the supporting microenvironment. This series of articles takes a look at recent progress in the diverse fields that have provided insights into this intriguing problem in cancer biology."
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Cancer origins
On the issue of virtue. Economically wise
From The Economist Espresso: The virtue of patience: China’s economy
http://econ.st/1PeR2Hv
To use it or not to: nuclear energy
From The Economist Espresso: Nuclear comeback: Japan’s energy choices
http://econ.st/1gULk2o
domingo, 9 de agosto de 2015
Ok. Let the jury speak. Is that the ''worst ever Brit'footwear''? I mean look at him. The man is discreet. Navy blue polo, likewise shorts, a small 'imperial' beer in the Algarve, in front of a ... navy \ marine harbour; Maybe ask who offer 'dad' those shoes? Has any one seen my lunch box'dad gift? Mercy...
The Honourable Schoolboy
upcoming...
The Honourable Schoolboy
http://www.nordita.org/hawkingradiation/directions/index.php
http://www.nordita.org/hawkingradiation/directions/index.php
Conference: Directions
Venue: KTH Royal Institute of Technology, Stockholm, Sweden
The Hawking Radiation Conference will be held in the Kollegiesalen Conference Room, in the administrative building on the campus of KTH Royal Institute of Technology, one of the two host universities of Nordita. The conference room is on the first floor, close to the reception area where you can ask for directions.
- Address: Brinellvägen 8
- Phone: (+46) (0)8 790 65 65
- Web: www.kth.se
- E-mail: info /+/ kth.se.
- Map coordinates: 59.3498156° N, 18.0706841° E
Venue: KTH Royal Institute of Technology, Stockholm, Sweden
Public Lecture: Directions
Venue: Stockholm Waterfront Congress Centre, Stockholm, Sweden
The public lecture of Stephen Hawking on Monday, August 24, will be held in the Main Congress Hall/Auditorium at the Waterfront Congress Centre. The entrance is shared between the congress centre and the Radisson Blue Waterfront Hotel.
- Address: Nils Ericsons Plan 4
- Phone: (+46) (0)8 5050 6000
- Web: www.stockholmwaterfront.com
- E-mail: meetings /+/ stockholmwaterfront.com.
- Map coordinates: 59.3299815° N, 18.0556281° E
Venue: Stockholm Waterfront Congress Centre, Stockholm, Sweden
Conference Banquet: Directions
Venue: Gold Foyer, Royal Opera House, Stockholm, Sweden
The Conference Banquet on Wednesday, August 26, will be in the Gold Foyer at the Royal Opera in central Stockholm, just across from the Royal Palace. The Golden Foyer is on the second floor, with a terrace overlooking the Gustav Adolf square in front of the Opera.
- Address: Gustav Adolfs torg
- Phone: (+46) (0)8 791 43 00
- Web: operan.se
- E-mail: info /+/ operan.se.
- Map coordinates: 59.3297318° N, 18.0704829° E
Venue: Gold Foyer, Royal Opera House, Stockholm, Sweden
Conference Program
Time: Monday, 24 August — Saturday, 29 August, 2015
Venue: Kollegiesalen Conference Room, KTH Royal Institute of Technology, Stockholm, Sweden
(See directions).
(See directions).
| MONDAY, 24 August | ||
| 10.45 – 11.00 | Welcome Remarks | C. L. Folt, UNC Chancellor |
| 11.00 – 11.45 | "Backreaction and Conform Symmetry" | G. 't Hooft |
| 11.45 - 12.45 | Discussion Session and Coffee | |
| 12.45 – 14.15 | Lunch at Canteen | |
| 14.15 – 15.00 | "Backreaction of Hawking Radiation and Singularities" | L. Mersini-Houghton |
| 15.00 – 16.00 | Discussion Session and Coffee | |
| 16.00 – 16.45 | "Physical interpretation of the semi-classical energy-momentum tensor in a Schwarzschild background" | J. Bardeen |
| 16.45 – 17.45 | Discussion Session and Coffee | |
| 19.00 | Public Lecture by S. Hawking "Quantum Black Holes", at Stockholm Waterfront Congress Centre (directions). | |
| TUESDAY, 25 August | ||
| 11.00 – 11.45 | "Gravity = (Yang-Mills)^2" | M. Duff |
| 11.45 – 12.45 | Discussion Session and Coffee | |
| 12.45 – 14.15 | Lunch at Canteen | |
| 14.15 – 15.00 | "Black Hole Memory" | M. J. Perry |
| 15.00 – 16.00 | Discussion Session and Coffee | |
| 16.00 – 16.45 | "Black holes and other solutions in higher derivative gravity" | K. Stelle |
| 16.45 – 18.00 | Discussion Session and Coffee | |
| WEDNESDAY, 26 August | ||
| 11.00 – 11.45 | "Black Holes as Open Quantum Systems" | C. Kiefer |
| 11.45 - 12.45 | Discussion Session and Coffee | |
| 12.45 - 14.15 | Lunch at Canteen | |
| 14.15 - 15.00 | "Particle Creation from vacuum in gravitational expansion and collapse" | L. Parker |
| 15.00 - 16.00 | Discussion Session and Coffee | |
| 16.00 - 16.45 | "Gravitational Condensate Stars or What's the (Quantum) Matter with Black Holes?" | E. Mottola |
| 16.45 – 17.45 | Discussion Session and Coffee | |
| 19.30 | Conference Banquet and Concert at the Gold Foyer of the Royal Opera (directions). | |
| THURSDAY, 27 August | ||
| 11.00 – 11.45 | "Did the chicken survive the firewall" | J. Louko |
| 11.45 – 12.45 | Discussion Session and Coffee | |
| 12.45 – 14.15 | Lunch at Canteen | |
| 14.15 – 15.00 | "A new quantum black hole phenomenology" | F. Vidotto |
| 15. 00 – 16.00 | Discussion Session and Coffee | |
| 16.00 – 16.45 | "Black to white hole tunnelling: before or after Hawking radiation?" | C. Rovelli |
| 16.45 – 18.00 | Discussion Session and Coffee | |
| FRIDAY, 28 August | ||
| 11.00 - 11.45 | "Quantum Damping or Decoherence: Lessons from Molecules, Neutrinos, and Quantum Logic Devices" | L. Stodolsky |
| 11.45 – 12.45 | Discussion Session and Coffee | |
| 12.45 – 14.15 | Lunch at Canteen | |
| 14.15 – 15.00 | "TBA" | Ch. Misner |
| 15.00 – 16.00 | Discussion Session and Coffee | |
| 16.00 – 16.45 | "The Generalised Second Law and the unity of physics" | F. Dowker |
| 16.45 – 18.00 | Discussion Session and Coffee | |
| SATURDAY, 29 August | ||
| 11.00 – 12.00 | Group Discussion: Summary of Results and Open Questions | |
| 12.00 – 12.30 | Status Report | S. Hawking [TBC] |
| 12.30 – 13.00 | Conclusions | P. Davies |
A must buy book. And do look up around the 10-12 (13th?) for those shooting stars!
The Honourable Schoolboy
On the issue of a (good condition) Strad'value....
Stolen Stradivarius violin found 35 years later - http://www.bbc.co.uk/news/entertainment-arts-33808012
sábado, 8 de agosto de 2015
It Was 20 Years Ago Today. Mike Duff wrote [1, p. 330] about the annus mirabilis…
It Was 20 Years Ago Today. Mike Duff wrote [1, p. 330] about the annus…: "
It Was 20 Years Ago Today. Mike Duff wrote [1, p. 330] about the annus mirabilis 1995 : "Future historians may judge the period 1984-95 as a time when theorists were like boys playing by the sea shore, and diverting themselves with the smoother pebbles or prettier shells of perturbative ten-dimensiorial superstrings while the great ocean of non-perturbative eleven-dimensional M-theory lay all undiscovered before them." But last year Greg Moore had to remind the boys to "Keep true to the dreams of thy youth" [2, section 12]: "Work on formulating the fundamental principles underlying M-theory has noticeably waned. [...] A good start was given by the Matrix theory approach [...but...] it has an important flaw: It has not led to much significant new mathematics. If history is a good guide, then we should expect that anything as profound and far-reaching as a fully satisfactory formulation of M-theory is surely going to lead to new and novel mathematics. Regrettably, it is a problem the community seems to have put aside - temporarily. But, ultimately, Physical Mathematics must return to this grand issue."
[1] http://ncatlab.org/nlab/show/The+World+in+Eleven+Dimensions
[2] http://ncatlab.org/nlab/show/Physical+Mathematics+and+the+Future
Traduzir
11
"
From a post by Urs Schreiber
'via Blog this' The Honourable Schoolboy
From a post by Urs Schreiber
Physical Mathematics and the Future
This page collects material related to the book collection
For related texts see at books about string theory.
4
on M-theory
6
On duality in string theory, mostly S-duality and dual heterotic string theory, ending with AdS-CFT
On whether “M” is really for “membrane” after all:
whith its section 12: “Keep true to the dreams of thy youth: M-theory”
- Mike Duff
The world in eleven dimensions: Supgergravity, Supermembranes andM -theory
IoP 1999
(publisher)
For related texts see at books about string theory.
Contents
1 Eleven-dimensional supergravity
On 11-dimensional supergravity2 The eleven-dimensional supermembrane
On the M2-brane3 The eleven-dimensional superfivebrane
On the M5-brane
4 M -theory (before M -theory was cool)
on M-theory5 Intersecting branes and black holes
On black branes, black holes in string theory and Bekenstein-Hawking entropy
6 M -theory and duality
On duality in string theory, mostly S-duality and dual heterotic string theory, ending with AdS-CFTOn whether “M” is really for “membrane” after all:
In other words, perhapsConcluding with:D=11 supergravity together with its BPS configurations: plane wave, membrane, fivebrane, KK monopole and theD=11 embedding of the Type II eightbraneare are all there is toM -theory and that we need look no further for new degrees of freedom. (p. 329)
future historians may judge the period 1984-95 as a time when theorists were like boys playing by the sea shore, and diverting themselves with the smoother pebbles or prettier shells of perturbative ten-dimensiorial superstrings while the great ocean of non-perturbative eleven-dimensional M-theory lay all undiscovered before them. (p.330)Compare to the situation 20 years later as in
whith its section 12: “Keep true to the dreams of thy youth: M-theory”
category: reference
Revised on August 8, 2015 08:42:35 by Urs Schreiber (88.128.80.106)
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