The Energy–Flow Interface: A Unified Thermodynamic Interpretation of Dark Matter, Dark Energy, and the CMB — within the Grid–Higgs Field Framework

The Energy–Flow Interface: A Unified Thermodynamic Interpretation of Dark Matter, Dark Energy, and the CMB — within the Grid–Higgs Field Framework Morten Magnusson1 1Energy–Flow Cosmology Project (EFC), Norway. Correspondence: https://magnusson.as October 2025 Abstract The standard ΛCDM model treats dark matter, dark energy, and the cosmic microwave background (CMB) as independent phenomena. Energy–Flow Cosmology (EFC) proposes that they are three thermodynamic phases of a single underlying medium, the Grid–Higgs field. Dark energy corresponds to the divergent, high– entropy phase; dark matter to the convergent, low–entropy phase; and the CMB to the isothermal membrane where their fluxes balance. This framework replaces three disconnected “dark” components with one continuous energy–entropy mechanism and yields testable predictions linking CMB anisotropies, dark–matter distributions, and dark–energy evolution. 1 Introduction In ΛCDM cosmology, dark matter (DM), dark energy (DE), and the CMB are introduced as unrelated components. Their respective energy densities (ΩDM ≈0.27, ΩΛ≈0.69) reproduce observations but lack a common physical cause. The EFC framework interprets these quantities as manifestations of a single energy–flow field Jµembedded in the Grid– Higgs background, where entropy Sdetermines local dynamics. 2 Field Framework The Grid–Higgs field is described by L=1 2(∂µΦ)2−V(Φ, S),(1) with field variable Φ and local entropy S. Energy transport is represented by the flux vector Jµsatisfying ∇µJµ=∂V (Φ, S) ∂S .(2) Three regimes naturally arise: 1 •Convergent flow (∇µJµ<0): local condensation →dark–matter behavior. •Null–flux interface (∇µJµ≈0): thermal equilibrium →CMB. •Divergent flow (∇µJµ>0): global expansion →dark–energy behavior. 3 The CMB as an Energy–Flow Interface In this picture, the CMB is not a fossil radiation field but the present thermodynamic boundary between the two phases of the Grid–Higgs field. Its measured temperature TCMB = 2.725 K represents the equilibrium condition where the net flux vanishes. Small anisotropies (∆T/T ∼10−5) are interpreted as oscillations in this interface, coupling local convergent and divergent zones. Energy–Flow Interface schematic. Convergent (dark–matter) and divergent (dark– energy) regimes of the Grid–Higgs field meet at an isothermal boundary representing the CMB. 4 Thermodynamic Triad and Predictions The EFI model forms a triad: Dark Matter ⇒structural energy (local condensation), Dark Energy ⇒latent energy (global pressure), CMB ⇒thermal energy (equilibrium surface). Predictions include: 1. Correlation of CMB anisotropies with dark–matter density fields. 2. Weak coupling between TCMB and dark–energy equation–of–state w(z). 3. Phase shift between ISW signal and dark–matter surfaces in large–scale maps. 2 5 Discussion and Outlook By interpreting DM, DE, and CMB as phases of a single energy–flow field, EFC resolves the “coincidence problem” and offers a unified thermodynamic description of cosmic structure. Future work will implement the EFC equations in numerical solvers such as CLASS and GADGET–4, enabling Bayesian comparison with ΛCDM. 6 Conclusion Dark matter and dark energy are the inward and outward phases of the same energy– flow field; the CMB is the thermodynamic membrane where their fluxes balance. This model invites re–examination of the cosmic “dark sector” as an emergent property of the Grid–Higgs energy continuum. Acknowledgements The author thanks the open–science community for access to cosmological datasets (Planck, DESI, SPARC, KiDS, CFHTLens, Pantheon+). References 1. Planck Collaboration (2020), Astronomy & Astrophysics, 641, A6. 2. Verlinde, E. (2016), “Emergent Gravity and the Dark Universe,” SciPost Phys. 2, 016. 3. Chaisson, E. (2019), “Energy Flow and Complexity in Nature,” Entropy 21(12), 1160. 4. Penrose, R. (2018), “Cyclic Cosmology and Conformal Structure,” Found. Phys. 48, 1177–1190. License: CC–BY 4.0 International Version: 1.1 (October 2025) 3