Quantum Medium Effective Field Theory: A Complementary Approach to ΛCDM Cosmology

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Abstract

The Quantum Medium Effective Field Theory (QMEFT) introducesdark matter as an interactive, structured quantum energy field, comple-menting conventional particle-based models. Integrating smoothly withestablished cosmological frameworks (ΛCDM), the theory addresses per-sistent observational anomalies, including cosmic ray suppression, grav-itational lensing discrepancies, small-scale structural problems, and theHubble tension. By treating dark matter as a structured quantum fieldactively guiding energy flows, QMEFT offers incremental adoption andempirical validation through targeted observational predictions.

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