Zhuoying Li Haoshen Fan Xingwen Zhao Qinfei Wu Ji Bian Yang Liu Le Luo Simulating the Evolution of von Neumann Entropy in Black Hole Hawking Radiation Using Biphoton Entanglement. 236 2025 27 Entropy 3 https://doi.org/10.3390/e27030236 db/journals/entropy/entropy27.html#LiFZWBLL25 streams/journals/entropy