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Unified resonant-manifold framework for dynamical quantum phase transitions

arXiv Quantum Physics
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⚡ Quantum Brief
Researchers Jesse Osborne, Cheuk Yiu Wong, and Jad Halimeh introduced a unified framework explaining dynamical quantum phase transitions (DQPTs) by analyzing energy structures in product states, addressing long-standing gaps in distinguishing DQPT types. The study reveals manifold DQPTs arise from resonances within the initial state manifold, while branch DQPTs stem from low-order processes linking initial and transitional state manifolds, clarifying their distinct origins. Branch DQPT irregularity is tied to the multiplicity of transitional manifolds, with exotic extended degeneracy periods observed beyond typical level-crossing behavior, conditioned by manifold structure. Using 1+1D Z₂ lattice gauge theory, the team demonstrated these mechanisms through quenches across parameter regimes, validating the framework’s predictive power in constrained Hilbert spaces. This work reframes DQPTs as probes of resonant connectivity, advancing understanding of dynamical criticality in non-equilibrium quantum systems.
Unified resonant-manifold framework for dynamical quantum phase transitions

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Quantum Physics arXiv:2605.22915 (quant-ph) [Submitted on 21 May 2026] Title:Unified resonant-manifold framework for dynamical quantum phase transitions Authors:Jesse J. Osborne, Cheuk Yiu Wong, Jad C. Halimeh View a PDF of the paper titled Unified resonant-manifold framework for dynamical quantum phase transitions, by Jesse J. Osborne and 2 other authors View PDF Abstract:Dynamical quantum phase transitions (DQPTs) are an exciting paradigm of out-of-equilibrium criticality in many-body systems manifested in nonanalytic behavior in the return rate to the initial state following a sudden quench. While previous work has tried to distinguish between distinct types of DQPTs, such as regular and anomalous, or manifold and branch, a comprehensive understanding of why each type appears in a given scenario is still lacking. In this work, we propose a unified framework addressing this gap in terms of the energy structure of different product state configurations. In particular, while manifold DQPTs are governed by resonances within the initial state manifold, branch DQPTs are governed by resonances with a transitional manifold of states dynamically connected to the initial manifold by low-order processes. We show that the (ir)regularity of branch DQPTs is related to the multiplicity of this transitional manifold, and we also observe exotic periods of extended degeneracy in the return rate (beyond the conventional level crossing of a DQPT) which are also conditioned on the structure of this transitional manifold. We demonstrate this by studying quenches of two different configurations in the 1 + 1D Z_2 LGT to various parameter regimes. Our findings provide a dynamical mechanism underlying branch DQPTs and frames DQPTs as probes of resonant connectivity in constrained Hilbert spaces, paving the way to a more complete understanding of the multifaceted nature of dynamical criticality. Subjects: Quantum Physics (quant-ph); High Energy Physics - Lattice (hep-lat) Cite as: arXiv:2605.22915 [quant-ph] (or arXiv:2605.22915v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2605.22915 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Jesse Osborne [view email] [v1] Thu, 21 May 2026 18:00:34 UTC (815 KB) Full-text links: Access Paper: View a PDF of the paper titled Unified resonant-manifold framework for dynamical quantum phase transitions, by Jesse J. Osborne and 2 other authorsView PDFTeX Source view license Current browse context: quant-ph new | recent | 2026-05 Change to browse by: hep-lat 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?)

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Source: arXiv Quantum Physics