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arXiv · 2608.30886

Signatures of inter-sideband coherence in the resonance fluorescence spectrum of an acoustically-modulated quantum dot

Rafał A. Bogaczewicz·Hubert J. Krenner·Paweł Machnikowski
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Abstract

We theoretically investigate the inter-sideband phase coherence within the resonance fluorescence spectrum of an acoustically modulated quantum dot using a filtered-field formalism for a Mach-Zehnder configuration. We demonstrate that geometric slant of the interferograms provides an indicator of phase coherence that is resilient to environmental white noise. Specifically, noise-induced spectral diffusion reduces the global fringe intensity, while leaving the characteristic inclination strictly invariant. Our findings establish a framework for verifying single-photon coherence between spectral sidebands, essential for frequency-bin encoding and scalable quantum networking in realistic, noisy solid-state architectures.

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Rafał A. Bogaczewicz, Hubert J. Krenner, Paweł Machnikowski. 2026-08-31. Signatures of inter-sideband coherence in the resonance fluorescence spectrum of an acoustically-modulated quantum dot. https://arxiv.org/abs/2608.30886

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