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Left handness in a four-level atomic system

arXiv Quantum Physics
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⚡ Quantum Brief
Researchers Shuncai Zhao and Zhengdong Liu propose a novel quantum scheme to achieve simultaneous negative permittivity and permeability—key properties for left-handed metamaterials—using a four-level atomic system. The study demonstrates that quantum coherence in dense atomic systems can produce these negative properties across a broader frequency band than conventional methods, leveraging resonance-enhanced gain and dispersion effects. Published in May 2026, the work builds on earlier theories but introduces parametric conditions that stabilize left-handed behavior, addressing prior limitations in bandwidth and material response. Potential applications include advanced metamaterials for cloaking, subwavelength imaging, and ultracompact photonic devices, exploiting the system’s unique quantum gain near resonance frequencies. The findings, submitted to arXiv, suggest a pathway to experimentally realizable quantum metamaterials with tunable electromagnetic properties, bridging theory and practical quantum engineering.
Left handness in a four-level atomic system

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Quantum Physics arXiv:2605.00077 (quant-ph) [Submitted on 30 Apr 2026] Title:Left handness in a four-level atomic system Authors:Shuncai Zhao, Zhengdong Liu View a PDF of the paper titled Left handness in a four-level atomic system, by Shuncai Zhao and 1 other authors View PDF HTML (experimental) Abstract:A scheme is proposed for realizing simultaneous negative permittivity and negative permeability based on quantum coherence in a four-level dense atomic system this http URL some parametric conditions the system shows that simultaneous negative permittivity and negative permeability(this http URL handness) can be achieved in a wider frequency band because of quantum this http URL the novelty properties of gain and dispersion near the resonance frequency may have some potential applications. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2605.00077 [quant-ph] (or arXiv:2605.00077v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2605.00077 Focus to learn more arXiv-issued DOI via DataCite Journal reference: International Journal of Quantum Information,2009 07:04, 747-754 Related DOI: https://doi.org/10.1142/S0219749909005390 Focus to learn more DOI(s) linking to related resources Submission history From: Shun-Cai Zhao [view email] [v1] Thu, 30 Apr 2026 14:09:54 UTC (71 KB) Full-text links: Access Paper: View a PDF of the paper titled Left handness in a four-level atomic system, by Shuncai Zhao and 1 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-05 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