1. Fan, H.Y.: Wigner function: from ensemble average of density operator to Its one matrix element in entangled pure states. Commu. Theor. Phys. 38(11), 533–536 (2002)
2. Fan, H.Y., Fan, Y.: New representation of thermo states in thermo field dynamics. Phys. Lett. A 246, 242–246 (1998)
3. Fan, H.Y.: From Quantum Mechanics to Quantum Optics-Development of the Mathematical Physics, pp.. 103–208. Jiao Tong University Press, Shanghai (2005). in Chinese
4. Fan, H.Y.: Entangled State Representation in Quantum Mechanics and Their App.lications, pp. 26–33. Jiao Tong University Press, Shanghai (2004). in Chinese
5. Xu, B.S., Shao, J.Z.: Advancement of several new type of biochip. Prog. Biochem. Biophys. 27(3), 251–254 (2000). in Chinese