Project supported by the National Natural Science Foundation of China(Grant Nos.10974125,60821004,60808006,60978017 and 60578018);the State Basic Key Research Program of China(Grant No.2006CB921102)
Photon quantum statistics of light can be shown by the high-order coherence. The fourth-order coherences of various quantum states including Fock states, coherent states, thermal states and squeezed vacuum states are ...