Abstract
We theoretically study the effect of quantum exceptional points on the optical properties of a quantum dot placed inside an optical microcavity and interacting with a weak probe field. Using a quantum approach, we study the steady-state behavior of the system and calculate the optical susceptibility. By separating the total susceptibility into two equivalent susceptibilities, corresponding to fictitious free quantum emitters, we show exceptional points’ drastic effect on the optical properties of the system close to the region where the exceptional point is formed. We further examine the optical properties of the system in the regions of the parameter space that arise from the exceptional condition, namely the strong coupling regime and the weak coupling regime.
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