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Trapped Ion Quantum Computing

Photon Number Coherence of a Quantum Dot-Cavity System Excited Using the SUPER Scheme

arXiv

Authors: Paul C. A. Hagen, Thomas Bracht, Mathieu Bozzio, Moritz Cygorek, Doris E. Reiter, Philip Walther, Vollrath M. Axt

Year

2026

Paper ID

60007

Status

Preprint

Abstract Read

~2 min

Abstract Words

111

Citations

Abstract

To fulfill the security requirements of quantum cryptography, photon number coherence (PNC) of single photon sources has recently become an important figure of merit. Quantum dots (QDs) embedded in photonic microcavities offer a mature source of single photons, of which many properties can be tuned by the use of different excitation protocols or parameters. We show that the Swing-UP of quantum EmitteR population (SUPER) scheme can significantly decrease the PNC of the emitted photon, compared to resonant excitation. The reason for this is a laser-induced Stark shift, which effectively decouples the QD from the cavity during the SUPER excitation. Our calculations account for environmental effects such as phonons and radiative losses.

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This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
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To fulfill the security requirements of quantum cryptography, photon number coherence (PNC) of single photon sources has recently become an important figure of merit.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2605.02490 [2] arXiv https://arxiv.org/abs/2605.02490 [3] Publisher https://arxiv.org/abs/2605.02490

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External citation index: OpenAlex citation signal • updated 2026-06-13 12:00:50

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