COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > DAMTP Friday GR Seminar > Spin systems as toy models for emergent gravity

## Spin systems as toy models for emergent gravityAdd to your list(s) Download to your calendar using vCal - Fotini Markopoulou, Perimeter Institute
- Friday 11 March 2011, 15:00-16:00
- Pavilion B, MR11.
If you have a question about this talk, please contact David Kubiznak. A number of recent proposals for a quantum theory of gravity are based on the idea that spacetime geometry and gravity are derivative concepts and only apply at an approximate level. There are two fundamental challenges to any such approach. At the conceptual level, there is a clash between the “timelessness” of general relativity and emergence. Second, the lack of a fundamental spacetime makes difficult the straightforward application of well-known methods of statistical physics to the problem. We initiate a study of such problems using toy models for emergent geometry and gravity based on evolution of quantum networks with no a priori geometric notions. In this talk we present two models. The first is a model of emergent (flat) space and matter and we show how to use methods from quantum information theory to derive features such as speed of light from a non-geometric quantum system. The second model exhibits interacting matter and geometry, with the geometry defined by the behavior of matter. This model has primitive notions of gravitational attraction, and exhibits entanglement between matter and geometry and thermalization of the quantum geometry. This talk is part of the DAMTP Friday GR Seminar series. ## This talk is included in these lists:- All CMS events
- All Talks (aka the CURE list)
- CMS Events
- Cosmology lists
- Cosmology, Astrophysics and General Relativity
- DAMTP Friday GR Seminar
- DAMTP info aggregator
- Interested Talks
- Kavli Institute for Cosmology Talk Lists
- Pavilion B, MR11
- Priscilla
- School of Physical Sciences
- bld31
Note that ex-directory lists are not shown. |
## Other listsGem's List Health and Welfare Research Group Turkish-Armenian Relations. Facing History: Denial as a Security Concept## Other talksSustainability of livestock production: water, welfare and woodland Dame Ottoline Leyser: Plant Development Not 'just a GP' Modulating developmental signals allows establishment of cultures of expanded potential stem cells How archaeologists resolve the inductive risk argument The Digital Doctor: Hope, Hype, and Harm at the Dawn of Medicine’s Computer Age 100 Problems around Scalar Curvature Thermodynamics de-mystified? /Thermodynamics without Ansätze? Throwing light on organocatalysis: new opportunities in enantioselective synthesis Knot Floer homology and algebraic methods Questions of Morality in Global Health- An interdisciplinary conference |