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arXiv · 2112.09003

Efficient many-body non-Markovian dynamics of organic polaritons

Piper Fowler-Wright·Brendon W. Lovett·Jonathan Keeling
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Abstract

We show how to simulate a model of many molecules with both strong coupling to many vibrational modes and collective coupling to a single photon mode. We do this by combining process tensor matrix product operator methods with a mean-field approximation which reduces the dimension of the problem. We analyze the steady-state of the model under incoherent pumping to determine the dependence of the polariton lasing threshold on cavity detuning, light-matter coupling strength, and environmental temperature. Moreover, by measuring two-time correlations, we study quadratic fluctuations about the mean-field to calculate the photoluminescence spectrum. Our method enables one to simulate many-body systems with strong coupling to multiple environments, and to extract both static and dynamical properties.

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Piper Fowler-Wright, Brendon W. Lovett, Jonathan Keeling. 2021-12-16. Efficient many-body non-Markovian dynamics of organic polaritons. https://doi.org/10.1103/physrevlett.129.173001

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