The Property of Generalized Nonlinear Equal-order N-th Power Y-squeezing in a New Type of Multi-mode Superposition State with the Linear Superposition of the Contrary State of Multi-mode ImaginaryConjugate Coherent State and Multi-mode Vacuum Stat
A new type of multi-mode superposition state light field |Ψ (2) n qis constructed, which is made of the linear superposition of macroscopically distinct two quantum state named the contrary state |{-iz * j} q of multi-mode imaginary conjugate coherent state |{iz * j} q and multi-mode vacuum state |Ψ (2) n q in this paper. By using the theory of multi-mode squeezed state, the property of generalized nonlinear equal-order N-th power Y-squeezing of the state |Ψ (2) n q mentioned above is studied firstly in detail. A series of significative new squeezing phenomenons are displayed.
A new type of multi-mode superposition state light field |Ψ (2) n qis constructed, which is made of the linear superposition of macroscopically distinct two quantum state named the contrary state |{-iz * j} q of multi-mode imaginary conjugate coherent state |{iz * j} q and multi-mode vacuum state |Ψ (2) n q in this paper. By using the theory of multi-mode squeezed state, the property of generalized nonlinear equal-order N-th power Y-squeezing of the state |Ψ (2) n q mentioned above is studied firstly in detail. A series of significative new squeezing phenomenons are displayed.
In this paper it is constructed a new type of unequalled-intensity unsymmetric multi-mode superposition state light field│Ψ (ab) 〉 q ,which is made of the linear superposition of macro scopically distinct two quantum states named the multi-mode imaginary conjugate coherent state│iZ j(a) 〉 q and the contrary state of multi -mode imaginary conjugate coherent state│iZ j(a) 〉 q respectively.By using the general theory of multi-mode squeezed state,the property of generalized nonlinear equal-power N-th power H-squeezing of the state│Ψ (ab) 〉 q mentioned above is studied firstly in detail.It is found that:(1).In the case of if Z j(a) ≠Z j(b) ,whether the q·N,the products of the cavity-mode number q and the squeezed power number N,is an even or odd number,the state│Ψ (ab) 〉 q can always presents equal-power N-th power H-squeezing effect.(2).When Z j(a) =Z j(b) and q·N is an odd number,the state│Ψ (ab) 〉 q can present the phenomenon of equal-power N-th power H-squeezing degenerate.
By utilizing the theory of multimode squeezed states established recently, the generalized nonlinear even number power equal-power N-th power Y-squeezing effects of generalized magnetic-field component in the new kind of multimode quantum light-field state (｜Ψ~((3))〉_q) is studied firstly in detail, which is composed of the linear superposition of macroscopically distinct three quantum states named multimode complex conjugation imaginary coherent state, the contrary state of multimode complex conjugation imaginary coherent state and multimode complex conjugation coherent state. It is found that under certain and fixed conditions, the generalized magnetic-field component in the state ｜Ψ~((3))〉_q can always display the effects of even number power generalized nonlinear equal-power N-th power Y-squeezing.
According to the linear superposition principle mechanics,the four-state superposition multi-mode superposition state light field |Ψ~((4))_(oe)Ⅷ〉_q is composed by multi-mode imaginary odd and complicit conjugation coherent states,and its general results of N-th power Y squeezing are got out by the multi-mode squeezing state theory.By numeric analyzing,it is found that: when parameters squeezed order N,total number of multi-mode q,average photon numbers of every mode state R~2_j and modulo of superposition probability amplitudes r_o(r_e) are taken different values,the state |Ψ~((4))_(oe)Ⅷ〉_q will represent by the equal-order N-Y minimum uncertainty states,half coherent states effect,half squeezing state effect,the first or the second orthogonal component represent N-th power Y squeezing.6 refs.
By utilizing the multi-mode squeezing state theory,the properties of the equal-order N-th power Y squeezing of stateare studied.According to the linear superposition principle of quantum mechanics,the fourth kind of four-state superposition multi-mode superposition states light field |Ψ~((4))_0,Ⅳ〉_qis constructed with multi-mode complex conjugate-odd coherent state(|Ψ~((2))_0,Ⅳ〉_q) and imaginary-odd coherent state(|Ψ~((2))_i,O〉_q).The new properties of the equal-order N-th power Y squeezing of state |Ψ~((4))_0,Ⅳ〉_qare found.When squeezing order Nis an even number,initial phase φ_j and initial phase difference θ_1-θ_2 indifferent conditions,1) When N=4m(m=1,2,3,…) the first orthogonal phase components of state |Ψ~((4))_0,Ⅳ〉_qrepresents the equal-order N-th power Y squeezing;2).When N=4m′-2(m′=1,2,3,…),the second orthogonal phase components of state |Ψ~((4))_0,Ⅳ〉_qrepresents N-th power Y squeezing effects.
In this paper, the eighth kind of multi-mode superposition state light field with two state superpositions is constructed, and thery of multi-mode squeezed state is utilized to study the properties of generalized nonlinear even-number-order and equal-order N-th power Y-squeezing of the state |Ψ (2) 8 q mentioned above. It is found that the state |Ψ (2) 8 q is a typical multi-mode nonclassical light field. It can display even-number-order equal-order N-th power Y-squeezing effects that change periodically, and under the other conditions. It can present the phenomenon of degenerate equal-order N-th power Y-squeezing.
The third of the three state superpositions multimode superposition state light field |ψ(3)3q was constructed by linear superposition of multimode complex conjugation coherent state,|{Zj}q multimode complex conjugation imaginary coherent state |{iZj}q and multimode vaecum state |{0j}q.By utilizing the theory of multimode squeezed states,the properties of generalized nonlinear unequalpower Njth power Ysqueezing (or amplitude squeezing) in the state |ψ(3)3q was discussed.It is found that when the squeezing power of each mode Nj is even number only,and some certain conditions are satisfied,the first or second perpendicular phase component in the state |ψ(3)3q can always display any even number power generialized nonlinear unequalpower Njth power Ysqueezing effeets respectively,which is comlementary,also changes periodically.