A quantum dot coupled to a suspended-beam mechanical resonator: from the unresolved- to the resolved-sideband regime
| Title: | A quantum dot coupled to a suspended-beam mechanical resonator: from the unresolved- to the resolved-sideband regime |
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| Authors: | Spinnler, Clemens, Nguyen, Giang N., Wang, Ying, Erbe, Marcel, Javadi, Alisa, Zhai, Liang, Scholz, Sven, Wieck, Andreas D., Ludwig, Arne, Lodahl, Peter, Midolo, Leonardo, Warburton, Richard J. |
| Publication Year: | 2023 |
| Collection: | Condensed Matter Physics (Other) Quantum Physics |
| Subject Terms: | Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Optics, Quantum Physics |
| More Details: | We present experiments in which self-assembled InAs quantum dots are coupled to a thin, suspended-beam GaAs resonator. The quantum dots are driven resonantly and the resonance fluorescence is detected. The narrow quantum-dot linewidths, just a factor of three larger than the transform limit, result in a high sensitivity to the mechanical motion. We show that one quantum dot couples to eight mechanical modes spanning a frequency range from $30$ to $600~\mathrm{MHz}$: one quantum dot provides an extensive characterisation of the mechanical resonator. The coupling spans the unresolved-sideband to the resolved-sideband regimes. Finally, we present the first detection of thermally-driven phonon sidebands (at $4.2~\mathrm{K}$) in the resonance-fluoresence spectrum. |
| Document Type: | Working Paper |
| Access URL: | http://arxiv.org/abs/2311.05353 |
| Accession Number: | edsarx.2311.05353 |
| Database: | arXiv |
| Description not available. |