Spin networks and the big bang singularity avoidance in the $\mathrm{AdS}/\mathrm{CFT}$ correspondence

We propose a new version of the $\mathrm{AdS}/\mathrm{CFT}$ correspondence, where polymer structures similar to loop quantum cosmology spin networks can be induced on an isotropic and homogeneous flat Randall-Sundrum II brane, corresponding to the holographic duals of closed string states living in the bulk. Such polymer structures drive a discrete evolution of the braneworld spacetime that leads to the regularization of the big bang singularity. The present results show that the $\mathrm{AdS}/\mathrm{CFT}$ conjecture can be a possible bridge between string theory and loop quantum gravity.