Light front holography in exploration of the ground and excited nucleons

Light front holography has emerged as a fruitful approach to describe the non-perturbative structure of hadrons. In this talk, I will discuss results from the bottom-up soft-wall AdS/CFT model developed by Brodsky, de Téramond and collaborators. After briefly describing the model, I will show how it successfully predicts the hadronic mass spectrum using $\Lambda_{QCD}$ as its only parameter. Then, I will show how the approach also predicts with a minimal number of parameters the nucleon form-factors, the polarized and unpolarized PDFs and the GPDs.