30 May 2017 to 2 June 2017
Impérial Palace
Europe/Paris timezone

Constraining Lorentz violations using gravitational wave observations

1 Jun 2017, 10:20
15m
Impérial Palace

Impérial Palace

Allée de l'Impérial, Annecy
Contributed talk Testing GR

Speakers

Ms Anuradha Samajdar (Indian Institute of Science Education and Research Kolkata)Dr Chris Van Den Broeck (National Institute for Subatomic Physics)

Description

Local Lorentz invariance is a cornerstone of general relativity (GR). The direct detection of gravitational waves (GWs) enables unique tests for possible violations of Lorentz invariance in the gravitational sector. Propagation effects of GWs in Lorentz violating theories of gravity lead to modified dispersion relations and dephasing of GWs with respect to the GR waveform. These may be measured or constrained through GW observations of compact binary mergers with second-generation detectors such as Advanced LIGO. We present a Bayesian parameter estimation pipeline to perform such studies, and using simulated data we quantify the prospects of future GW observations to constrain possible Lorentz invariance violations.

Primary author

Ms Anuradha Samajdar (Indian Institute of Science Education and Research Kolkata)

Co-authors

Dr Archisman Ghosh (National Institute for Subatomic Physics, Netherlands) Dr Chandra Mishra (Indian Institute of Technology, Madras) Dr Chris Van Den Broeck (National Institute for Subatomic Physics) Dr K. G. Arun (Chennai Mathematical Institute) Ms Laura Van Der Schaaf (National Institute for Subatomic Physics) Dr Michalis Agathos (University of Cambridge) Dr Rajesh Nayak (Indian Institute of Science Education and Research Kolkata) Dr Salvatore Vitale (Massachusetts Institute of Technology, LIGO Lab) Dr Stanislav Babak (Albert Einstein Institute, Golm, Germany) Dr Walter Del Pozzo (University of Pisa)

Presentation Materials