Gluons for (almost) nothing, and Gravitons for free…

by Prof. John Joseph Carrrasco (Northwestern Univesity)

Tuesday 4 Jun 2024, 15:30 → 17:30 US/Eastern

I will review recent breakthroughs in understanding some general features of relativistic quantum field theories and an associated double-copy structure in physical prediction. Relating many theories from the entirely formal to the utterly effective, these insights weave a web of relations from our precision descriptions of high energy QCD phenomena to pion scattering to binary inspiral gravitational waveforms all the way to cosmic inflation. Throughout this discussion I will frame the study of scattering amplitudes as a conceptual laboratory for probing the invariant predictive content of physical theory.

Zoom link:  https://bnl.zoomgov.com/j/1605020278?pwd=cHJ1bDRuK1FDNnZLSnpxVkZhcDQ3QT09 

Colloquium recording