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The property of generalized nonlinear equal-order higher-order n-th power h-squeezing of a new type of mscs light field with the superpositions of macroscopically distinct two quautum states

  • Weimin Liu
  • , Zhiyong Yang
  • , Yao Hou
  • , Xiuquan Sun
  • , Zhenjie Zhang
  • , Xun Hou
  • Northwest University China
  • CAS - Xi'an Institute of Optics and Precision Mechanics

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, the property of generalized nonlinear equal-order N-th power H-squeezing effect on a new type of multi-mode Schrödinger-Cat state (that is so-called MSCS) light field |ψ(2)>q, with the superpositions of macroscopically distinct two quantum states | {Zj} >q, and | {Zj}>q respectively is further studied in detail, by utilizing the theory of multi-mode squeezed states established recently by Yang Zhiyong and Hou Xun and published in Acta Photonics Sinica from 1998. 4 to 1999. 5. It is found that 1) the MSCS |ψ(2)>q is a typical nonclassical quantum light field state, if q · N, the products of squeezed order number N and cavity mode number q, is an even number or q · N=2p, but p = 2m′ + l (here p is an odd number, and m′ = 0, 1, 2, 3, ···, ···), while the quautization conditions are satisfied by the sum σj=1qφj of the initial phases of all mode, by the initial phase difference (θpq(I)- θnq(R)) between the two components of the MSCS |φ(2)>q, and by the whole average photon number σj=1qRj2 of each multi-mode coherent state light field in the MSCS mentioned above (or, when the sum σRj2 changes continuously within a series of squeezed regions of the whole average photon number mentioned above), the MSCS |ψ(2)>q can always displays the effects of any order generalized nonlinear equal-order N-th power H-squeezing, that changes periodically;2)the squeezed consequences (or the squeezed degree and squeezed depth) of both the first perpendicular component and the second perpendicular component of the MSCS |ψ(2)>q are the same completely, the effects of the generalized nonlinear equal-order N-th power H-squeezing of the two perpendicular components mentioned can exchange periodically; and 3) compared with the Reference 16, the squeezed order number of the generalized nonlinear equal-order N-th power H-squeezing of the MSCS | ψ(2)>q in this paper is even higher than the squeezed order number of the generalized nonlinear equal-order N-th power Y-squeezing of the MSCS in Reference 16.

Original languageEnglish
Pages (from-to)678-691
Number of pages14
JournalGuangzi Xuebao/Acta Photonica Sinica
Volume29
Issue number8
StatePublished - 2000
Externally publishedYes

Keywords

  • Equal-order N-H uncertainty state;Equal-order N-H minimum uncertainty state
  • Equal-order N-th power H-squeezing
  • Multi-mode Schrodinger-Cat state (or MSCS) light field
  • Superpositions of macroscopically distinct two quantum states

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