A single-photon emitter coupled to a phononic-crystal resonator in the resolved-sideband regime

• URL: http://arxiv.org/abs/2311.05342v1
• Date: Thu, 9 Nov 2023 13:11:03 GMT
• Title: A single-photon emitter coupled to a phononic-crystal resonator in the resolved-sideband regime
• Authors: Clemens Spinnler, Giang N. Nguyen, Ying Wang, Liang Zhai, Alisa Javadi, Marcel Erbe, Sven Scholz, Andreas D. Wieck, Arne Ludwig, Peter Lodahl, Leonardo Midolo, Richard J. Warburton
• Abstract summary: We observe the interaction between a mechanical resonator and a single-photon emitter. Our results represent a major step towards quantum control of the mechanical resonator via a single-photon emitter.
• Score: 2.116339958735258
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: A promising route towards the heralded creation and annihilation of single-phonons is to couple a single-photon emitter to a mechanical resonator. The challenge lies in reaching the resolved-sideband regime with a large coupling rate and a high mechanical quality factor. We achieve all of this by coupling self-assembled InAs quantum dots to a small-mode-volume phononic-crystal resonator with mechanical frequency $\Omega_\mathrm{m}/2\pi = 1.466~\mathrm{GHz}$ and quality factor $Q_\mathrm{m} = 2.1\times10^3$. Thanks to the high coupling rate of $g_\mathrm{ep}/2\pi = 2.9~\mathrm{MHz}$, and by exploiting a matching condition between the effective Rabi and mechanical frequencies, we are able to observe the interaction between the two systems. Our results represent a major step towards quantum control of the mechanical resonator via a single-photon emitter.

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