One knob to tune them all: Phase-controlled photon statistics and linewidth in partially pumped atomic ensembles
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Quantum Physics arXiv:2604.26117 (quant-ph) [Submitted on 28 Apr 2026] Title:One knob to tune them all: Phase-controlled photon statistics and linewidth in partially pumped atomic ensembles Authors:Oksana Chelpanova, Martino Stefanini, Dusan Sarenac, Tim Thomay, Jamir Marino View a PDF of the paper titled One knob to tune them all: Phase-controlled photon statistics and linewidth in partially pumped atomic ensembles, by Oksana Chelpanova and 3 other authors View PDF HTML (experimental) Abstract:We study a minimal model of collective light emission from an incoherently driven ensemble of atoms where incoherent drive is applied only to a part of atoms and show that both the linewidth and the photon statistics can be controlled within a single framework. In this setting, collective dissipation induces correlations between the pumped and unpumped parts of the system, leading to interference between their emission contributions. By introducing a relative phase between these contributions and tuning the pump rate, we demonstrate that the properties of the emitted light can be varied over a broad range. In particular, the linewidth can be made either independent of system size or scale extensively with it, while the photon statistics can be tuned from antibunched or quantum to bunched. We further show that the role of the relative phase in controlling the interference can alternatively be played by the coherent interaction. By tuning the interaction strength together with the pump rate, one can access the same regimes as in the dissipation-only model. In addition, coherent interactions stabilize regimes of coherent emission with narrow linewidth, reminiscent of superradiant lasing. Our results illustrate how interference in partially driven collective systems provides a flexible mechanism for tailoring both spectral and statistical properties of light. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.26117 [quant-ph] (or arXiv:2604.26117v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2604.26117 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Oksana Chelpanova [view email] [v1] Tue, 28 Apr 2026 21:08:37 UTC (1,133 KB) Full-text links: Access Paper: View a PDF of the paper titled One knob to tune them all: Phase-controlled photon statistics and linewidth in partially pumped atomic ensembles, by Oksana Chelpanova and 3 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-04 References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)