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June 2014

2 participants
2 discussions

Quantum Information Theory Reading Group at LMU
by Michael Cuffaro July 13, 2014

July 13, 2014

Dear all, the Summer 2014 reading group on Quantum Information Theory will begin this coming Monday, April 14th, from 18:00 - 20:00 (CT). After that we will meet bi-weekly. The location is Ludwigstraße 31, Room 021. The first part of the meeting on Monday will be devoted to organisational matters and to discussing subsequent meeting topics. During the second part of the meeting, *Seamus Bradley* will introduce us to *Classical Information Theory*. As background reading, you may want to look at Parts I and II of Claude Shannon's "A Mathematical Theory of Communication" (1948). It can be downloaded from: http://cm.bell-labs.com/cm/ms/what/shannonday/shannon1948.pdf Everyone interested in the topic of quantum information theory is encouraged to attend the group. Please also feel free to distribute this to anyone not subscribed to this mailing list who you think may be interested in attending. If you are receiving this email twice because you belong to this mailing list but are explicitly included in the Cc list, please let me know and I will remove you from the latter. I hope to see many of you next week. Best wishes, -- Michael Cuffaro Postdoctoral Fellow Ludwig-Maximilians-Universität München Fakultät für Philosophie, Wissenschaftstheorie und Religionswissenschaft Lehrstuhl für Wissenschaftstheorie Munich Center for Mathematical Philosophy Geschwister-Scholl-Platz 1 80539 München, Deutschland http://www.michaelcuffaro.com

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Mini-Workshop on the Foundations of Shape Dynamics (LMU Munich, 23rd June)
by Karim Thébault June 12, 2014

June 12, 2014

****************************************************************** Mini-Workshop on the Foundations of Shape Dynamics Sean Gryb (Nijmegen) and Tim Koslowski (New Brunswick) 18:15 - 19:45 Monday 23rd June Munich Center for Mathematical Philosophy, LMU Munich Ludwigstr. 31/0 room 021 ****************************************************************** *An Introduction to Shape Dynamics: a New Perspective on Quantum Gravity* Sean Gryb (Nijmegen) Shape Dynamics is a theory of gravity where the fundamental ontology is that of evolving conformally invariant spatial geometry. This implements a notion of local spatial scale invariance such that what is seen to be physically meaningful is the information about the local "shapes" (as opposed to size) of a system. Perhaps surprisingly, this theory can be proven to reproduce a vast number of the solutions to the Einstein equations. However, black hole solutions are known to differ from those of GR past the horizon and do not lead to singularities. Shape Dynamics, thus, provides an intriguing new starting point for a theory of quantum gravity. In this introductory chalkboard talk, I will try to give some motivations for Shape Dynamics and will describe the basic structure of the theory, outlining how one can prove equivalence with GR. This will lay the ground work for Tim Koslowski's talk, which will discuss some recent developments of the theory. *Recent Work in Shape Dynamics* Tim Koslowski (New Brunswick) Based on the introduction to shape dynamics by Sean Gryb, I will discuss the question: "Given that gravity (from the perspective of shape dynamics) is fundamentally the evolution of spatial conformal geometry and not spacetime: How is the arrow of time generated? How is the illusion of a spacetime generated? What are the limitations of the spacetime description? I will give explicit answers to several aspect of these questions and I will explain where the uncharted territory begins. ****************************************************************** Selected Papers: Einstein gravity as a 3D conformally invariant theory Henrique Gomes, Sean Gryb, Tim Koslowski.. Quant.Grav. 28 (2011) 045005 arXiv:1010.2481 [gr-qc] | Frequently asked questions about Shape Dynamics Henrique Gomes, Tim Koslowski. Found.Phys. 43 (2013) 1428-1458 arXiv:1211.5878 [gr-qc] A Gravitational Origin of the Arrows of Time Julian Barbour, Tim Koslowski, Flavio Mercati. arXiv:1310.5167 [gr-qc] _______________________________________________ philphysmunich mailing list philphysmunich(a)lists.lrz.de https://lists.lrz.de/mailman/listinfo/philphysmunich

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