Double Field Theory Symmetries of the String and the Weak Scale

摘要

This work focuses on understanding the symmetries behind double field theory andhow to reduce the theory to the usual one with Lorentz symmetry and T-duality. Althoughthis work has mainly the structure of a review, new ideas are explored and old results are takenfrom a new point of view. Considering the physical effects of dual dimensions, a connectionwith the weak scale is performed through compactification.