Topological localization of biphoton states in arrays of nonlinear photonic waveguidesRemoveDonghao Wang, Qinglong Qiu, Yu Zhao, Xu Jing, Xiaodong Zheng, Siran Zhao, Yongchun Tao, Guanghui Liu, Chong Sheng, and Liangliang LuPhys. Rev. A 113, 023502 (2026)