2025/09/11 by Daniel Groll, Daniel Wigger, Groll, Daniel +15 · 1 voice · 2 citations
Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
paper · doi:10.48550/arxiv.2509.09559
The combination of solid state single-photon emitters and mechanical excitations into hybrid infrastructures is a promising approach for new developments in quantum technology. Here we investigate theoretically the resonance fluorescence (RF) spectrum of an acoustically modulated single-photon emitter under arbitrarily strong optical driving. In the spectrum, the combination of Mollow triplet physics and phonon sidebands results in a complex structure of crossings, anti-crossings, and line suppressions. We apply Floquet theory to develop an analytical expression for the RF spectrum. Complemented with perturbative and non-perturbative techniques, this allows us to fully understand the underlying acousto-optical double dressing physics of the hybrid quantum system, explaining the observed spectral features. We use these insights to perform an experimental feasibility study of existing emitter-based acousto-optical platforms and come to the conclusion that bulk acoustic waves interfaced with quantum dots render a promising infrastructure to perform acousto-optical Floquet engineering.