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

• URL: http://arxiv.org/abs/2608.30886v1
• Date: Mon, 31 Aug 2026 14:42:57 GMT
• Title: Signatures of inter-sideband coherence in the resonance fluorescence spectrum of an acoustically-modulated quantum dot
• Abstract summary: We show that geometric of the interferograms provides an indicator of phase coherence that is resilient to environmental white noise.<n>Our findings establish a framework for verifying single-photon coherence between spectral sidebands.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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