Quantum Natures of Two-mode Squeezed Thermalised States

Academic Paper from the year 2019 in the subject Physics - Optics, grade: 12, , language: English, abstract: Under this paper we calculate mean photon number sum and difference, variance of photon number sum and difference, second order correlation function and both quadrature variance and quadrature squeezing with help of Q function. We have found that the mean photon number sum for the two-mode squeezed thermal light is the sum of separate modes and the photon statistic is super Poissonian. And the photon number for two-mode squeezed thermal light is correlated and we have seen that the two-mode squeezed thermal light exhibiting the photon bunching effect. Moreover, the quadrature variance for two-mode squeezed thermal light turns out to be the product of the quadrature variances of the two-mode thermal and two-mode squeezed vacuum states. The squeezing increase with increasing the squeeze parameter and with decreasing the mean photon number of thermal light.