Tunneling between multiple histories as a solution to the information loss paradox

The information loss paradox associated with black hole Hawking evaporation is an unresolved problem in modern theoretical physics. In this talk, we revisit the evolution of the black hole entanglement entropy via the Euclidean path integral of the quantum state and allow for the branching of semi-classical histories along the Lorentzian evolution. We posited that there exist at least two histories that contribute to EPI, where one is an information-losing history while the other is information-preserving. At early times, the former dominates EPI, while at late times the latter becomes dominant. By so doing we recovered the essence of the Page curve and thus the unitarity, albeit with the turning point, i.e., the Page time, much shifted toward the late time.