[2] I. M. Georgescu, S. Ashhab, F. Nori. Quantum simulation. Rev. Mod. Phys., 86, 153-185(2014).
[3] J. L. O’Brien. Optical quantum computing. Science, 318, 1567-1570(2007).
[5] J. D. Franson. Bell inequality for position and time. Phys. Rev. Lett., 62, 2205-2208(1989).