WGCPcall20180209

Call: March 2018

Meeting agenda

• [DV] introduction to Horndeski theories
• [HW] regular meeting time

First call: February 9th, 2018

Meeting agenda

• [HW] introduction and scope of the working group

Minutes

Participants: Eloisa Bentivegna, Sante Carloni, Katy Clough, Isabel Cordero, Michele Grasso, Daniele Vernieri, Helvi Witek

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• Introduction
  • ET open community, combine efforts on similar topics in working groups
  • wide scope to use numerical relativity in less traditional contexts including, e.g. cosmology (e.g., inflation, structure formation,...), modified gravity (e.g. effective 4D models, cosmological models, higher-D, ...), black hole properties (e.g. superradiance, stability properties,...)
  • soft deliverables: initiate collaborations; contact for potential common science proposals

• Feedback and common interests
  • important to combine expertise of currently distinct communities, both on a scientific and methodological level (e.g cosmology, modified gravity, compact objects; numerical relativity, maths, (perturbation) theory and phenomenology)
  • development of new mathematical methods for numerical schemes
  • apply numerical methods to tackle increasingly complicated problems in perturbation theory in modified gravity
  • understanding perturbations crucial for extraction and interpretation of gravitational wave signatures
  • cross-checking and benchmarking with independent codes, e.g., Einstein Toolkit and GR Chombo
  • common scientific goals:
    • evolution and perturbations in cosmological backgrounds
    • early universe cosmology
  • black hole stability and superradiance / axion dark matter physics

• Frequency of meetings and next meeting
  • once per month or every two months
  • next meeting in the beginning of March; Helvi will create doodle closer to the date
  • please consider attending the workshop ``Numerical relativity beyond GR in Benasque/ Spain, 3-9 June 2018