Stochastic Liouville-transport theory of light-atom interaction noise in thermal atomic vapors

[2608.15130] Stochastic Liouville-transport theory of light-atom interaction noise in thermal atomic vapors Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Quantum Physics arXiv:2608.15130 (quant-ph) [Submitted on 15 Aug 2026] Title: Stochastic Liouville-transport theory of light-atom interaction noise in thermal atomic vapors Authors: Shaoxin Yuan , Bin Wu , Mingyong Jing , Chaoyang Hu , Yan Peng , Tingting Li , Xingya Li , Wenguang Yang , Junyao Xie , Zongkai Liu , Hao Zhang , Linjie Zhang , Liantuan Xiao , Suotang Jia View a PDF of the paper titled Stochastic Liouville-transport theory of light-atom interaction noise in thermal atomic vapors, by Shaoxin Yuan and 13 other authors View PDF HTML (experimental) Abstract: Atom-light interaction noise can limit thermal-vapor sensing. Existing theories often treat internal-state dynamics, finite-mode atomic motion, and stochastic renewal separately, obscuring their coupled contributions to measured noise. We develop a general stochastic Liouville-transport theory, tested against polarization-resolved resonant Cs D$_2$ spectra. Joint experiment-theory analysis identifies atom-light noise below approximately 100 kHz as transit-dominated. Ballistic motion through the finite Gaussian mode modulates both the coupling-weighted effective atom number and trajectory-dependent Rabi coupling, producing predominantly common-mode noise. Boundary renewal introduces atoms with independently sampled ground-state sublevels, generating differential population fluctuations with opposite effects on the circular channels. Under an applied longitudinal magnetic field, experiment and theory show the same qualitative nonmonotonic change in common-mode suppression, supporting Zeeman redistribution of the channel responses. The framework can analyze noise in other thermal-atom sensors, including Rydberg-atom electric-field measurements. Subjects: Quantum Physics (quant-ph) ; Atomic Physics (physics.atom-ph); Computational Physics (physics.comp-ph); Optics (physics.optics) Cite as: arXiv:2608.15130 [quant-ph] (or arXiv:2608.15130v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2608.15130 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Mingyong Jing [ view email ] [v1] Sat, 15 Aug 2026 09:08:20 UTC (1,784 KB) Full-text links: Access Paper: View a PDF of the paper titled Stochastic Liouville-transport theory of light-atom interaction noise in thermal atomic vapors, by Shaoxin Yuan and 13 other authors View PDF HTML (experimental) TeX Source view license Current browse context: quant-ph < prev | next > new | recent | 2026-08 Change to browse by: physics physics.atom-ph physics.comp-ph physics.optics References & Citations INSPIRE HEP NASA ADS Google 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? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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