四态叠加多模叠加态光场的等幂N次方X压缩  

Generalized Nonlinear Equal-power N-thpower X squeezing in Four State Superimposition Multimode Superimposition State Light Field

作　　者：许定国[1,2] 安毓英[1] 杨志勇[1,3] 曾小东[1] 

机构地区：[1]西安电子科技大学技术物理学院,陕西西安710071 [2]陕西商洛师范专科学校量子光学与量子信息研究所,陕西商洛726000 [3]西北大学光子与光子技术研究所,陕西西安710069

出　　处：《光电子．激光》2003年第4期419-422,共4页Journal of Optoelectronics·Laser

基　　金：陕西省自然科学基金资助项目(2000SL10);陕西省教育厅专项科研基金资助项目(00JK115;99JK091);西北大学科学基金资助项目(99NW38);商洛师范专科学校基金资助项目(2000SLT03)

摘　　要：利用多模压缩态理论,研究了新构造的第I种偶数模四态叠加多模叠加态光场|Ψ(4)oe,|>2q的等幂次N次方X(差)压缩特性。结果表明,当场模数q与压缩幂次N的乘积qN为偶数且任一模光子数nj小于压缩幂次N时,态|Ψ(4)oe,|>2q的2个正交相位分量可同时呈现程度相同的等幂次N次方X压缩效应;当qN为奇数且nj<N,则在其它必要条件下,态|Ψ(4)oe,|>2q的2个正交相位分量可分别呈现等幂次N次方X压缩效应。The properties of equal-power N-th power X squeezing of the first even number mode four-state superimposition multi-mode superimposition state, which is composed of the linear super positions of the multi-mode even and odd coherent state that they have as same as even number mode, was studied based on the theory of multimode squeezed states. The results show when the qN(q,cavity mode number) is even number, and the photon numbers ni of any mode is less than N, two quadrature phase components of the state appear as equal-order N-th X squeezing in the same time; when qN is odd number, ni<N, and also other necessary conditions the two quadrature phase components of the state present the equal power N-th power X-squeezing effect.

关 键 词：四态叠加 多模叠加态光场 等幂N次方X压缩 完全压缩 正交相位分量 

分 类 号：O431.2[机械工程—光学工程]