Signatures of non-Markovianity in cavity QED with color centers in two-dimensional materials

Light-matter interactions of defects in two-dimensional materials are expected to be profoundly impacted by strong coupling to phonons. In this work, we combine ab initio calculations of a defect in hBN with a fully quantum mechanical and numerically exact description of a cavity-defect system to el...

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Bibliographic Details
Published inPhysical review research Vol. 5; no. 3; p. L032037
Main Authors Svendsen, Mark Kamper, Ali, Sajid, Stenger, Nicolas, Thygesen, Kristian Sommer, Iles-Smith, Jake
Format Journal Article
LanguageEnglish
Published American Physical Society 01.09.2023
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Summary:Light-matter interactions of defects in two-dimensional materials are expected to be profoundly impacted by strong coupling to phonons. In this work, we combine ab initio calculations of a defect in hBN with a fully quantum mechanical and numerically exact description of a cavity-defect system to elucidate this impact. We show that, even at weak light-matter coupling, the dynamical evolution of the cavity-defect system has clear signatures of non-Markovian phonon effects, and that linear absorption spectra show the emergence of hybridized light-matter-phonon states in regimes of strong light-matter coupling. We emphasise that our methodology is general, and can be applied to a wide variety of material-defect systems.
ISSN:2643-1564
2643-1564
DOI:10.1103/PhysRevResearch.5.L032037