Two-particle quantum correlations on nano and macro single-mode lasers

Papoff, Francesco and D'Alessandro, G. and Lippi, G. L. and Oppo, Gian-Luca (2024) Two-particle quantum correlations on nano and macro single-mode lasers. Proceedings of SPIE, 13002. 1300208. ISSN 0277-786X (https://doi.org/10.1117/12.3024493)

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Abstract

We compare a novel quantum mechanical model of lasers, which includes all two-particle correlations, with the Coherent-Incoherent Model (CIM), where truncation eliminates these effects. Numerical results for the simple case of identical single-electron quantum dots are presented for two cases: only the laser mode is coupled to the quantum dots; the coupling is extended to non-resonant modes. We find coexistence between non-lasing and lasing states, together with a minimum number of photons required to initiate the laser action. The correlations introduce a non-zero variance in the field, which is otherwise strictly zero in the absence of interparticle correlations.