Open AccessSuperposition of two arbitrary coherent states and its quantum statistical properties
Author(s) -
MA Zhi-min,
Aiqin Ma,
Ruosheng Zeng,
Qu Wang,
Shutian Liu
Publication year - 2005
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.54.2049
Subject(s) - superposition principle , physics , coherent states , quantum mechanics , amplitude , phase (matter) , quantum , state (computer science) , quantum superposition , quantum state , phase difference , statistical physics , mathematics , algorithm
In this paper, the quantum statistical properties of the superposition state,a β〉+beiφmβeiδ〉,which involves two arbitrary coh erent states, are investigated. The results show that this kind of super-positio n states generally exhibits squeezing effect or anti-bunching effect. The quantu m effects of the superposed state depend on β2 and the amplitude coe fficient m, as well as the changes of the phase difference between two coherent states δ, and the phase difference between two superposition coefficients φ al so plays an important role in squeezing or anti-bunching effects.