Quantum theory of two-photon interference
  In this paper, we study two-photon interference with the approach of photon quantum theory, with specific attention to the two-photon interference experiment carried out by Milena D'Angelo et al. (Phys. Rev. Lett 87:013602, 2001). We find the theoretical result is accordance with experiment data. 
Xiang-Yao Wu, Bo-Jun Zhang, Xiao-Jing Liu, Hong Li, Si-Qi Zhang, Jing   Wang, Yi-Heng Wu and Jing-Wu Li
quant-ph