Speaker
Hiroki Ishikawa
Description
In the grand unified theory, the Higgs mechanism is commonly used. However, as an alternative approach, extra dimensions with non-zero curvature can lead to gauge symmetry breaking.
We have constructed a Yang-Mills theory with extra dimensions as two-dimensional sphere(S^2). As a result, the curvature of the extra dimensions and the non-commutative nature of the gauge group lead to a different gauge symmetry breaking process and origin of Higgs from conventional models such as those with S^1 and T^2.
In this talk, we report on the gauge symmetry breaking observed in the Kaluza-Klein expansion of four-dimensional gauge fields.
