Generalized coherent states of multimode light, and biphotons

V. P. Karasev

V. P. Karasev, V. I. Puzyrevskii

Wan De-quan

It is constructed that multimode superposition state light field |Ψ(5)〉q which is composed of the linear superposition of five macroscopically distinguishable quantum states named multimode vacuum state,multimode complex conjugation imaginary coherent state,the contrary state of multimode complex conjugation imaginary coherent state,multimode complex conjugation coherent state,and the contrary state of multimode complex conjugation coherent state.By utilizing the theory of multimode squeezing states established recently,it is found that the state |Ψ(5)〉q is a type of five state superposition multimode nonclassical light field,and under certain and fixed conditions,the generalized electric-field component in the state |Ψ(5)〉q can display the effects of generalized nonlinear equal-power 4m-th power H-squeezing which changes periodically.

Luca Salasnich

Yang Xiao-li

It is studied systematically that generalized nonlinear unequal-power higher-power sum squeezing properties of generalized magnetic-field component in a new kind of three state superposition multimode Schrdinger-cat state light field which is composed of multimode complex conjugation imaginary coherent state, the contrary state of multimode complex conjugation imaginary coherent state, and multimode complex conjugation coherent state, by utilizing the theory of multimode squeezed states. It is found that the state is a new type of three state superposition multimode nonclassical light field, and under certain conditions, the generalized magnetic-field component in the state can display the effects of generalized nonlinear unequal-power higher-power sum squeezing which changes periodically.

Sibel Başkal, Young S Kim, Marilyn E. Noz