Level crossings and superradiant quantum phase transition for a two-qutrit quantum Rabi model

--> Quantum Physics arXiv:2604.20371 (quant-ph) [Submitted on 22 Apr 2026] Title: Level crossings and superradiant quantum phase transition for a two-qutrit quantum Rabi model Authors: R. Grimaudo , A. S. M. De Castro , G. Falci , A. Messina , E. Paladino , A. Messina , N. V. Vitanov View a PDF of the paper titled Level crossings and superradiant quantum phase transition for a two-qutrit quantum Rabi model, by R. Grimaudo and 6 other authors View PDF HTML (experimental) Abstract: A two-qutrit extension of the quantum Rabi model is studied. Despite its increased complexity, the model results to be integrable under specific, physically relevant conditions. This feature allows for the emergence of analytically tractable subdynamics. In this framework, the ground-state phase diagram can be derived, and the analysis reveals critical phenomena linked to both level crossings and quantum phase transitions. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.20371 [quant-ph] (or arXiv:2604.20371v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2604.20371 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Roberto Grimaudo [ view email ] [v1] Wed, 22 Apr 2026 09:08:10 UTC (169 KB) Full-text links: Access Paper: View a PDF of the paper titled Level crossings and superradiant quantum phase transition for a two-qutrit quantum Rabi model, by R. Grimaudo and 6 other authors View PDF HTML (experimental) TeX Source view license Current browse context: quant-ph < prev | next > new | recent | 2026-04 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? )