Fig. 6: Single-photon generation in hybrid CEP cavity at ϕ = 0. | Communications Physics

Fig. 6: Single-photon generation in hybrid CEP cavity at ϕ= 0.

From: Enhanced quantum coherence of plasmonic resonances with a chiral exceptional points

Fig. 6: Single-photon generation in hybrid CEP cavity at ϕ = 0.

a Comparison of \({g}^{\left(2\right)}\left(0\right)\) with and without CEP under weak coherent drive of QE. The inset plots \({g}^{\left(2\right)}\left(0\right)\) as the function of frequency detuning and \(\phi\). Other parameters are \({\omega }_{a}=2.3{{{{{\rm{eV}}}}}}\), \({\omega }_{c}=1.3{{{{{\rm{eV}}}}}}\), \({\omega }_{0}=1.284{{{{{\rm{eV}}}}}}\), \({g}_{c}=0.07m{{{{{\rm{eV}}}}}}\), \({g}_{1}=-12.6m{{{{{\rm{eV}}}}}}\), \({\kappa }_{a}=100m{{{{{\rm{eV}}}}}}\), \({\kappa }_{c}=0.1m{{{{{\rm{eV}}}}}}\), \({\gamma }_{p}=0\) and \({\gamma }_{0}=10\mu {{{{{\rm{eV}}}}}}\). b, c Room-temperature indistinguishability and efficiency of emitted photons from an initial excited QE prepared by a pulse drive. The cavity and QE are set to be resonant. Other parameters are \({g}_{c}=0\), \({g}_{a}=31m{{{{{\rm{eV}}}}}}\), \({g}_{1}=-11m{{{{{\rm{eV}}}}}}\), \({\kappa }_{a}=100m{{{{{\rm{eV}}}}}}\), \({\kappa }_{c}=2m{{{{{\rm{eV}}}}}}\), \({\gamma }_{p}=20m{{{{{\rm{eV}}}}}}\) and \({\gamma }_{0}=10\mu {{{{{\rm{eV}}}}}}\). The results are obtained from numerical simulation using QuTip83 at truncated states space with three excitations.

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