Quantum Discord via Measurement-Induced Coherence Transfer (MICT)

Quantum Discord via Measurement-Induced Coherence Transfer (MICT) | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Quantum Discord via Measurement-Induced Coherence Transfer (MICT) Saida M. Alkurkushi, Malek N. Algabri This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9097770/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 8 You are reading this latest preprint version Abstract Quantum discord captures nonclassical correlations beyond entanglement and plays a piv-otal role in quantum communication, computation, and thermodynamics. Traditionally defined via entropy-based asymmetries in mutual information, discord remains conceptually rich but operationally opaque particularly in noisy or mixed-state regimes where entanglement vanishes yet quantum advantage persists. In this work, we introduce a novel formulation of discord based on Measurement-Induced Coherence Transfer (MICT). Rather than quantifying information imbalance, MICT discord measures the coherence gained in subsystem A when a projective measurement is performed on subsystem B. This directional, coherence-centric perspective reframes discord as a physically observable transfer process, firmly grounded in the resource theory of quantum coherence. Numerical simulations on Werner states validate the framework and reveal strong basis sensitivity: computational-basis measurements yield vanishing discord, whereas Hadamard-basis measurements consistently produce maximal coherence. This sharp divergence from standard discord measures underscores the operational significance of measurement choice in coherence-aware protocols. Finally, we discuss experimental feasibility, showing that MICT discord can be estimated via standard quantum state tomography and coherence monotones. Our results position MICT discord as a practical diagnostic and a new lens for interpreting quantum correlations, with potential applications in coherence-based benchmarking, quantum thermodynamics, and noise-resilient communication protocols. Quantum discord Measurement-Induced Coherence Transfer (MICT) Quantum coherence Resource theory of coherence Basis sensitivity Teleportation Superdense Coding (SDC) Quantum Key Distribution (QKD) Quantum communication protocols Noise-resilient quantum information Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Reviewers agreed at journal 11 May, 2026 Reviews received at journal 06 Apr, 2026 Reviewers agreed at journal 06 Apr, 2026 Reviewers invited by journal 26 Mar, 2026 Editor invited by journal 24 Mar, 2026 Editor assigned by journal 24 Mar, 2026 Submission checks completed at journal 23 Mar, 2026 First submitted to journal 23 Mar, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9097770","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":612869666,"identity":"c69de59b-8ec3-43c7-b9e6-5ee180dd9fa6","order_by":0,"name":"Saida M. 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