Figure 6
Numerical results for the two-point correlation function c(t) as defined in Eq. (6) for the polariton BEC. For this plot, we considered the order parameter \(\rho \) to be the relative deviation between the condensate density P(x, t) and the unperturbed steady-state density \(P_0\), namely, \(\rho (x,t) = \dfrac{P (x,t)-P_0}{P_0}\). We took \(x-x^\prime \) to be half the length of the strip. The limit \(|t-t^\prime |\rightarrow \infty \) was taken by fixing \(t^\prime \) at \(t^\prime = 100\) ps, and assuming t to vary between 3000 and 3060 ps. This way \(|t-t^\prime | \gg \tau _C\), where \(\tau _C \approx 14\) ps is the period of the condensate oscillations.
