Single quantum emitter Dicke enhancement

Abstract

Coupling N identical emitters to the same field mode is well-established method to enhance light matter interaction. However, the resulting √ N-boost of the coupling strength comes at the cost of a "linearized" (effectively semi-classical) dynamics. Here, we instead demonstrate a new approach for enhancing the coupling constant of a single quantum emitter, while retaining the nonlinear character of the light-matter interaction. We consider a single quantum emitter with N nearly degenerate transitions that are collectively coupled to the same field mode. We show that in such conditions an effective Jaynes-Cummings model emerges, with a boosted coupling constant of order √ N. The validity and consequences of our general conclusions are analytically demonstrated for the instructive case N = 2. We further observe that our system can closely match the spectral line shapes and photon autocorrelation functions typical of Jaynes-Cummings physics, hence proving that quantum optical nonlinearities are retained. Our findings match up very well with recent broadband plasmonic nanoresonator strong-coupling experiments and will therefore facilitate the control and detection of single-photon nonlineari-ties at ambient conditions.

Citation

Tufarelli, T., Friedrich, D., Groß, H., Hamm, J., Hess, O., & Hecht, B. (2021). Single quantum emitter Dicke enhancement. Physical Review Research, 3(3), Article 033103. https://doi.org/10.1103/physrevresearch.3.033103

• Journal Article Type: Article
• Acceptance Date: Jun 2, 2021
• Online Publication Date: Jul 29, 2021
• Publication Date: Jul 29, 2021
• Deposit Date: Jul 1, 2021
• Publicly Available Date: Aug 2, 2021
• Journal: Physical Review Research
• Electronic ISSN: 2643-1564
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 3
• Issue: 3
• Article Number: 033103
• DOI: https://doi.org/10.1103/physrevresearch.3.033103
• Keywords: General Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/5750231
• Publisher URL: https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.3.033103