Open AccessWigner function of two-mode squeezed number state and its properties
Author(s) -
Song Jun,
Heng Fan,
Zhou Jun
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.110302
Subject(s) - wigner distribution function , quantum entanglement , physics , squeezed coherent state , phase space , mode (computer interface) , representation (politics) , operator (biology) , function (biology) , quantum mechanics , state (computer science) , phase (matter) , correlation function (quantum field theory) , coherent states , statistical physics , mathematics , quantum , computer science , repressor , algorithm , law , chemistry , biology , operating system , biochemistry , evolutionary biology , political science , transcription factor , politics , gene , dielectric
By means of the entangled state representation as well as the Wigner operator in such a representation, the Wigner function of the two-mode squeezed number states is derived. The properties of corresponding Wigner function in the phase space are discussed by numerical calculation. The results indicate that Wigner function distribution in the phase space should be influenced by the correlation and the entanglement between two modes of two-mode squeezed number state.