Институт теоретической и математической физики

МГУ имени М.В. Ломоносова

ITMP Seminar "Colour-kinematic duality, double copy and homotopy algebras"

ITMP Seminar
15 ноября 2021

Dear Colleagues,

We are pleased to announce that the next ITMP seminar will be held on Wednesday, Nov 17, at 18:00 (Moscow time). It will be arranged via zoom.

 

Speaker: Dr. Tommaso Macrelli, Surrey University

Title: Colour-kinematic duality, double copy and homotopy algebras

Abstract: While colour-kinematic duality and double copy are a well established paradigm at tree level, their loop level generalisation remained for a long time an unsolved problem. Lifting the on-shell, scattering amplitude-based description to an action-based approach, we show that a theory that exhibits tree level colour-kinematic duality can be reformulated in a way such that its loop integrands manifest colour-kinematic duality.

After a review of Batalin-Vilkovisky formalism and homotopy algebras, we discuss how these structures emerge in quantum field theory and gravity. We focus then on the application of these sophisticated mathematical tools to colour-kinematic duality and double copy, introducing an adequate notion of colour-kinematic factorisation.

This talk is based on arXiv:2007.13803 [hep-th], arXiv:2102.11390 [hep-th], arXiv:2108.03030 [hep-th].

 

If you want to join the seminar please register here before 14:00, November 17 here.

If you would like to subscribe to newsletters about ITMP seminars, please, contact seminar@itmp.msu.ru

 

 

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