Enhancement of the Hong-Mandel Higher-Order Squeezing and Amplitude Odd-Power Squeezing in Even Coherent State by its Superposition with Vacuum State
Pankaj Kumar, R. Kumar, Hari Prakash · Acta Physica Polonica A · 2017
We study the Hong-Mandel 2n th-order squeezing of the Hermitian operator, X θ ≡ X1 cos θ + X2 sin θ and amplitude n th-power squeezing of the Hermitian operator,], of vacuum state and even coherent state defined by |α,, a is the annihilation operator, α, θ, r and ϕ are arbitrary and the only restriction on these is the normalization condition of the superposed state.We show that the Hong-Mandel 2n th-order squeezing and amplitude odd-power squeezing exhibited by even coherent state enhance in its superposition with vacuum state.Variations of these higher-orders squeezing with different parameters near its maxima have also been discussed.