Open AccessCoherent entangled state representation for the common eigenvector of p1-p2 and a1+a2 and its characteristics
Author(s) -
Hongqi Li,
Sai Xu,
Xing-Lei Xu,
Jiang Ji-Jian
Publication year - 2009
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.58.3806
Subject(s) - coherent states , beam splitter , physics , eigenvalues and eigenvectors , vacuum state , representation (politics) , state (computer science) , quantum mechanics , completeness (order theory) , quantum , laser , computer science , mathematics , mathematical analysis , algorithm , politics , political science , law
The new two mode coherent entangled state representation 1p,β〉 is proposed by the technique of integration within an ordered product of operators. Its characteristics and mechanism are analysed. The results show that, the common eigenvector |p,β〉 of p1-p2 and a1+a2 exhibits both the characteristics of the coherent state and entangled state. The 1|p,β〉 makes up a new quantum mechanical representation and possesses the completeness relation. The ideal single-mode squeezed state |p=0〉2=exp1/2a+22|0〉2 and the vacuum state |0〉1 overlapping on a beam splitter may produce the coherent entangled state |p,β〉at the output by the modulation of the laser field.