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arXiv · 2311.05342

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

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
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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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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. 2023-11-09. A single-photon emitter coupled to a phononic-crystal resonator in the resolved-sideband regime. https://arxiv.org/abs/2311.05342

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