Programme

I.9 -- Invited, VCTP-45

Date: Wednesday, 14 October 2020

Time: 14:00 - 14:30

Online presentation

Photon-fermion Kaluza-Klein partners in bilayer systems

Ai-Viet Nguyen

Information Technology Institute, Vietnam National University

A geometric description of bilayer systems is formulated as a space-time manifold extended by a discrete dimension of two discrete points. The interlayer interactions are taken into consideration as a consequence of the discrete derivation and Kaluza-Klein partners. The scalar Kaluza-Klein partner has a quartic potential, which gives a mass to the vector Kaluza-Klein partner of the photon via an Abelian Higgs mechanism. The discrete dimension also leads to a non-diagonal mass matrix for the fermions. Its diagonalization by a mixing angle results in a mass splitting formula of fermion's Kaluza-Klein partners and their couplings to the photon sector.

Presenter: Ai-Viet Nguyen