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Influence of environment on quantum correlations in two-spin systems with dipole-dipole interactions

G. A. Bochkin, E. B. Fel'dman, E. I. Kuznetsova, E. I. Shipulya
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Russian researchers analyzed how environmental noise affects quantum correlations in a two-spin-½ system with dipole-dipole interactions, using the Lindblad equation as the theoretical framework. The study focused solely on dephasing—where the environment disrupts quantum coherence without energy exchange—revealing distinct impacts on entanglement and quantum discord as relaxation rates varied. Results showed entanglement degrades more rapidly under environmental influence than quantum discord, highlighting discord’s resilience as a resource for quantum technologies operating in noisy conditions. The team derived explicit dependencies of both correlations on relaxation rates, providing quantitative benchmarks for designing robust quantum systems in real-world, non-ideal environments. This work advances understanding of open quantum systems, offering insights for error mitigation in spin-based quantum computing and magnetic resonance applications.
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Quantum Physics arXiv:2602.04444 (quant-ph) [Submitted on 4 Feb 2026] Title:Influence of environment on quantum correlations in two-spin systems with dipole-dipole interactions Authors:G. A. Bochkin, E. B. Fel'dman, E. I. Kuznetsova, E. I. Shipulya View a PDF of the paper titled Influence of environment on quantum correlations in two-spin systems with dipole-dipole interactions, by G. A. Bochkin and 3 other authors View PDF HTML (experimental) Abstract:An influence of environment on quantum correlations (entanglement and quantum discord) is studied in a two-spin-1/2 system with dipole-dipole interactions on the basis of Lindblad equation. We consider the simplest case when the environment causes only dephasing of system spins. The dependencies of entanglement and the quantum discord on the relaxation rate are obtained. We compare the influence of the environment on entanglement and quantum discord. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2602.04444 [quant-ph] (or arXiv:2602.04444v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2602.04444 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Georgii Bochkin [view email] [v1] Wed, 4 Feb 2026 11:15:54 UTC (86 KB) Full-text links: Access Paper: View a PDF of the paper titled Influence of environment on quantum correlations in two-spin systems with dipole-dipole interactions, by G. A. Bochkin and 3 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-02 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?) Links to Code Toggle Papers with Code (What is Papers with Code?) 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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