Fig. 7
From: Quantum dynamics and squeezing in a noiseless cavity mode driven by a coherent three-level atom

Minus quadrature squeezing \(S_-\) versus \(\varepsilon\), calculated using Eq. (106). The fixed parameters are \(\gamma _c = 0.8\) and \(\kappa = 0.8\). The curves illustrate different spontaneous emission \(\gamma\): \(\gamma = 0.0\) (solid line), \(\gamma = 0.35\) (dotted line), \(\gamma = 0.45\) (dash-dotted line), and \(\gamma = 0.5\) (large dashed line).