Two-mode hyperradiant lasing in a system of two quantum dots embedded in a bimodal photonic crystal cavity

• URL: http://arxiv.org/abs/2506.21202v1
• Date: Thu, 26 Jun 2025 12:59:38 GMT
• Title: Two-mode hyperradiant lasing in a system of two quantum dots embedded in a bimodal photonic crystal cavity
• Authors: Lavakumar Addepalli, P. K. Pathak,
• Abstract summary: We propose a scheme for two-mode hyperradiant lasing in a system comprising two incoherently pumped quantum dots (QDs)<n>To account for the exciton-phonon interactions, we employ a time-convolutionless polaron-transformed master equation.<n>We demonstrate that phonon-induced cooperative two-mode two-photon processes significantly enhance the radiance witness.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We propose a scheme for two-mode hyperradiant lasing in a system comprising two incoherently pumped quantum dots (QDs) coupled to a bimodal photonic crystal cavity. To account for the exciton-phonon interactions, we employ a time-convolutionless polaron-transformed master equation. Both resonant and off-resonant couplings of the QDs to the cavity modes are considered, and we analyze the resulting radiance witness as well as the intra- and inter-mode photon correlations. Furthermore, we demonstrate that phonon-induced cooperative two-mode two-photon processes significantly enhance the radiance witness. This enhancement is quantified by evaluating the emission and absorption rates associated with both single-mode and two-mode two-photon transitions. Finally, we compare the radiance witness and emission spectral linewidths for QDs coupled to single-mode and bimodal cavities, revealing that an increase in radiance witness is accompanied by a narrowing of the emission linewidth.

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