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Journal of Shaanxi University of Technology

Property of even-power Y-squeezing on the equal-intensity of 2MQES light-field

Xue Hong

Published Jan 1, 2008• 0 citations
OpenAlex

Abstract

The multimode squeezed state theory is used to the system researching the effect of the generalized nonlinear high-power Y-squeezing on the Equal-intensity of Two State-superposition multimode quantum entanglement state(2MQES)light-field|ψME(2)〉q in detail.And the effect shows that the generalized nonlinear equal-power odd-power Y-squeezing of the generalized electric-field component and the generalized magnetic-field component of state|ψME(2)〉q can present under the certain condition is further revealed,even squeezed law is similar and both the squeezed amplitude and the squeezed quantity of the generalized magnetic-field component of the quantum light field are bigger than the generalized electric-field component.Finally it is pointed out that both the quantum interference effect and the quantum entanglement property of multimode light-field are the innate character that can cause the effect of equal-power odd-power Y-squeezing the generalized electric-field component and the generalized magnetic-field component of state|ψME(2)〉q.

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Huijun Wan

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Journal of Shaanxi Normal University•Jan 1, 2004•0 citations
The multimode squeezed state theory is used to the system researching the effect of the generalized nonlinear high-power Y-squeezing on the Equal-intensity of Two State-superposition multimode quantum entanglement state(2MQES)light-field|ψME(2)〉q in detail.And the effect shows that the generalized nonlinear equal-power odd-power Y-squeezing of the generalized electric-field component and the generalized magnetic-field component of state|ψME(2)〉q can present under the certain condition is further revealed,even squeezed law is similar and both the squeezed amplitude and the squeezed quantity of the generalized magnetic-field component of the quantum light field are bigger than the generalized electric-field component.Finally it is pointed out that both the quantum interference effect and the quantum entanglement property of multimode light-field are the innate character that can cause the effect of equal-power odd-power Y-squeezing the generalized electric-field component and the generalized magnetic-field component of state|ψME(2)〉q.
The multimode squeezed state theory is utilized to study the characteristic of equal-power even-power Y-squeezing of the generalized electric-field component on state |ψ_0~(3)〉q of MFSS(multimode functional superposition state) light-field with the three macroscopically distinguishable multimode quantum coherent states,then the influences of any spatial distributions of the light-field classical intensity,classical amplitude and classical phase,and the injected multimode vacuum field upon both squeezed amplitude and squeezed quantity of equal-power even-power Y-squeezing of the generalized electric-field component mentioned above are analyzed and discussed in detail.It is find that that both the quantum interference effect and the quantum entanglement property of multimode light-field are the innate character that can cause equal-power 2m-th power Y-squeezing of the generalized electric-field component on state |ψ_0~(3)〉q.The injected multimode vacuum field can produce direct influence to the effect of equal-power 2m-power Y-squeezing of the generalized electric-field component of MFSS light-field,and it can causes the squeezed effect of the quantum light field to build up,and squeezed amplitude to increase,and squeezed degree to deepen.
The 2MQES(or Two state-superposition multimode quantum entanglement state) light-field |Ψ(2)MF(αj)〉q along Z direction spreading in the gain medium and absorption medium is constructed.The multimode squeezed state theory is used to research the effect of the generalized nonlinear equal-power N-power Y-squeezing of 2MQES light-field,the influences of the gain and absorption spoilage effect of medium upon the generalized nonlinear equal-power N-power Y-squeezing of 2MQES light-field are analyzed in detail.It is found that,under the condition of the gain parameter.αj0,both the generalized electric-field component and the generalized magnetic-field component of state |Ψ(2)MF(αj)〉q can present a N-power Y-squeezing effect,and when αj is increase,both the squeezed amplitude and the squeezed intensity of the N-power Y-squeezing will diminish.Under the condition of the absorption spoilage coefficient αj0,both the generalized electric-field component and the generalized magnetic-field component of state |Ψ(2)MF(αj)〉q can present a N-power Y-squeezing effect,while |αj| is increase,both the squeezed amplitude and the squeezed intensity of the N-power Y-squeezing will increase.When the absorption effect is increasingly strong,both the squeezed amplitude and the squeezed intensity are increasingly big.It is shows that absorption medium is advantageous to squeezing of multimode quantum superposition state light-field.
Aim Research properties of equal-power higher-power Y-squeezing of generalized electric-field component (or the second perpendicular phase component) of asymmetrical multimode functional superposition state light-field with superposition of three macroscopically distinct quantum states,proffer theory reference for experiment research of quantum optical communication.Methods It is constructed that the three-states superposition multimode functional superposition state light-field according to the superposition principle of quantum state in quantum mechanics, the properties of equal-power higher-power Y-squeezing of generalized electric field component of the state are studied firstly by utilizing the multimode squeezed state theory.Results Formula (11),(13) and (17) give the effect of generalized nonlinear at will odd numbers and even number equal-power Y-squeezing of generalized electric-field component of asymmetrical multimode functional superposition state light-field with superposition of three macroscopically distinct quantum states under the three kinds situation by course of define of generalized nonlinear equal-power N-power Y-squeezing multimode.Conclusion ① Under a series of fixed conditions, the generalized electric-field component of the asymmetrical multimode complex conjugate functional superposition state light-field can display the effect of generalized nonlinear equal-power higher-power Y-squeezing which changes periodically and alternatively.② The any asymmetrical spatial distribution of the classical intensity and the classical amplitude, and the any spatial distribution features of the initial classical phase of light-field in the state would have a direct influence upon the squeezed degree and squeezed depth of equal-power higher-power Y-squeezing present by the generalized electric-field component in the state.
By utilizing the theory of multimode squeezed states estabilshed recently, the generalized nonlinear equal-power N-th power H-squeezing properties of generalized electric-field component in the new kind of three state superposition multimode quantum superposition state light field |Ψ~((3))〉_q is studied firstly in detail. It is found that under certain and fixed conditions, the generalized electric-field component in the state (|Ψ~((3))〉_q ) can always display the effects of generalized nonlinear equal-power N-th power H-squeezing which changes periodically.
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.