[Okc-wp4] Next EO meeting on Thursday 19th of April

[Francesco Taddia]

Dear all, 

on Thursday 19th of April at 13:15 (slightly later to avoid conflict with another meeting) we will have our next EO meeting,
 in the usual KTH meeting room on the 5th floor.

The speaker is Irvin Martinez Rodriguez, who is visiting in Stockholm. Below, title and abstract of his talk.

cheers

/Francesco

%%%%%%%%%%%%%%%%%%

Title: 
Towards the binary compact object formation as an effective field theory

Abstract: 
To solve  the dynamics of a pair of heavy and compact objects through the exchange of gravitational degrees of freedom and emitting gravitational waves we can set the problem in an effective field theory framework, in the non relativistic general relativity formulation known as effective field theory for extended objects. The two-body problem exhibits a clear separation of scales: The size of the compact objects, the orbital separation and the gravitational wavelength, all controlled by the same expansion parameter. This approach is a way of organizing systemastic expansions in powers of ratios of scales. We describe how to "integrate out" physics at each of the scales to obtain a theory with well defined rules for calculating observables. A possible extension of this idea to formulate the compact object formation in this framework is discussed.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.su.se/pipermail/okc-wp4-at-fysik.su.se/attachments/20180411/5ea44910/attachment.html>