26–29 Sept 2017
DESY Hamburg
Europe/Berlin timezone

Gravitational Wave Oscillations in Bigravity

28 Sept 2017, 17:47
17m
Seminar room 4b (DESY Hamburg)

Seminar room 4b

DESY Hamburg

Notkestrasse 85, 22607 Hamburg

Speaker

Mr Moritz Platscher (Max-Planck-Institut fuer Kernphysik)

Description

With the first detection of a gravitational wave signal in September 2015 by the LIGO collaboration, a new era in physics has begun. Gravitational wave astronomy allows us to probe the contents and properties of our Universe in a completely new manner, accessing so far inaccessible scales and phenomena. In this talk I will present one such phenomenon, dubbed gravitational wave oscillations, which, in full analogy to neutrino oscillations, arises in theories of multi-metric gravity, where the matter and propagation bases do not coincide. It is illustrated how the presence of more than one tensor field modifies the wave form observed in a detector on the Earth and how this can be used to put constraints on the parameter space of the model.

Primary author

Mr Moritz Platscher (Max-Planck-Institut fuer Kernphysik)

Co-authors

Dr Juri Smirnov (INFN divisione di Firenze) Mr Kevin Max (Scuola Normale Superiore)

Presentation materials