From gravitation to information – and back again

4 03/2015

Wednesday, 04 Mar. 2015, 11:00 - 12:00

Presenter: Philipp Höhn (Perimeter Institute for Theoretical Physics, Waterloo, Canada)
Host: VCQ
Where: Christian-Doppler Lecture Hall, Boltzmanngasse 5, 3rd Floor, 1090 Vienna

Abstract: I will explain how my research in (quantum) gravity has motivated me to adopt an information theoretic perspective on both quantum and spacetime physics. I will summarize the ensuing ``warm-up’’ results, namely (a) how one can derive quantum theory from simple rules on an observer’s information acquisition and (b) how one can infer from quantum informational relations among observers that it takes the Lorentz group to translate among their descriptions of physics. I will conclude with an outlook on my plan to employ such informational ingredients to approach spatiotemporal structures more fundamentally.