10-16 June 2018
Dalhousie University
America/Halifax timezone
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Surprising consequences of a positive cosmological constant (I)

13 Jun 2018, 11:30
30m
SUB 302 (cap.40) (Dalhousie University)

SUB 302 (cap.40)

Dalhousie University

Invited Speaker / Conférencier(ère) invité(e) Theoretical Physics / Physique théorique (DTP-DPT) W2-4 General Relativity II (DTP) | Relativité générale II (DPT)

Speaker

Dr Beatrice Bonga (Perimeter Institute)

Description

The study of isolated systems has been vastly successful in the context of vanishing cosmological constant, Λ=0. However, there is no physically useful notion of asymptotics for the universe we inhabit with Λ>0. The full non-linear framework is still under development, but some interesting results at the linearized level have been obtained. I will focus on the conceptual subtleties that arise at the linearized level and discuss the quadrupole formula for gravitational radiation as well as some recent developments.

Primary author

Dr Beatrice Bonga (Perimeter Institute)

Presentation Materials