Agenda de l’IDP

Séminaire de Physique Théorique

Helicity and duality symmetry in light-matter interactions
Ivan Fernandez (Karlsruhe Institute of Technology, Allemagne)
Thursday 13 October 2016 14:00 -  Tours -  Salle 1180 (Bât E2)

Résumé :
My research has been revolving around the use of electromagnetic helicity and electromagnetic duality in light matter interactions. I use this pair in the general context of exploiting the symmetries of the scattering operators of the objects of interest. In my talk, I will give an overview of the framework and then speak about some results that I have obtained using it. For example, an analogy between gravitational waves and biphoton states, and a robust definition of electromagnetic chirality. I will then speak about future work, where I wish to investigate extensions of the methodology that include matter (e.g. spin 1/2 fermions), not just as the "stuff" that the field scatters off, but as an integral part of the framework. I am specifically interested in non-perturbative characteristics of the joint field+matter objects, and in the coupling between the matter spins and the field's helicity.

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