Psi–Continuum Cosmology v5: A Macroscopic State–Space Response Framework for Late–Time Cosmic Expansion
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| Natura: | Recurso digital |
| Lingua: | inglese |
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2025
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| _version_ | 1866902102440148992 |
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| author | Klimov, Dmitry Vasilevich |
| author_facet | Klimov, Dmitry Vasilevich |
| contents | <p>Psi–Continuum Cosmology v5: A Macroscopic State–Space Response Framework for Late–Time Cosmic Expansion</p> <p>This work introduces a macroscopic state–space framework for describing<br>late–time cosmic expansion, formulated as a purely diagnostic and<br>phenomenological approach.</p> <p>Rather than postulating new dynamical fields, modifying gravitational<br>dynamics, or introducing additional cosmological parameters, the framework<br>defines a single macroscopic state–space coordinate, Ψ(z), constructed<br>directly from ratios of background expansion histories relative to a<br>reference ΛCDM state. The construction is strictly kinematical and does not<br>assume a specific microscopic origin for late–time acceleration.</p> <p>Within this formulation, observational constraints on the expansion history<br>are organized as trajectories in an abstract state space. Independent<br>late–time datasets are found to form a compact and internally consistent<br>family of smooth trajectories with sub–percent deviations from the ΛCDM<br>reference. The standard ΛCDM model naturally emerges as the<br>instantaneous–response limit of the macroscopic description, while observed<br>departures correspond to small, history–dependent deformations of the<br>background expansion.</p> <p>The framework is intentionally conservative. It introduces no new degrees of<br>freedom, preserves all local gravitational dynamics, and does not perform<br>parameter estimation or likelihood fitting. Its primary purpose is to provide<br>a transparent and reproducible language for organizing late–time expansion<br>data and assessing their internal consistency at the background level.</p> <p>All results presented in this work are fully reproducible. A companion<br>open–source repository provides a concrete implementation of the state–space<br>diagnostics and figure generation described in the article, while the present<br>record serves as the archival reference for the theoretical framework and its<br>published results.</p> <p>This release represents a conceptual milestone in the Psi–Continuum<br>program, shifting the focus from model building toward a macroscopic,<br>response–based description of cosmic expansion that remains fully compatible<br>with existing observational constraints.<br><br></p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18088720 |
| institution | Zenodo |
| language | eng |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Psi–Continuum Cosmology v5: A Macroscopic State–Space Response Framework for Late–Time Cosmic Expansion Klimov, Dmitry Vasilevich cosmology late-time acceleration dark energy ΛCDM macroscopic response background expansion phenomenological cosmology observational cosmology state-space diagnostics <p>Psi–Continuum Cosmology v5: A Macroscopic State–Space Response Framework for Late–Time Cosmic Expansion</p> <p>This work introduces a macroscopic state–space framework for describing<br>late–time cosmic expansion, formulated as a purely diagnostic and<br>phenomenological approach.</p> <p>Rather than postulating new dynamical fields, modifying gravitational<br>dynamics, or introducing additional cosmological parameters, the framework<br>defines a single macroscopic state–space coordinate, Ψ(z), constructed<br>directly from ratios of background expansion histories relative to a<br>reference ΛCDM state. The construction is strictly kinematical and does not<br>assume a specific microscopic origin for late–time acceleration.</p> <p>Within this formulation, observational constraints on the expansion history<br>are organized as trajectories in an abstract state space. Independent<br>late–time datasets are found to form a compact and internally consistent<br>family of smooth trajectories with sub–percent deviations from the ΛCDM<br>reference. The standard ΛCDM model naturally emerges as the<br>instantaneous–response limit of the macroscopic description, while observed<br>departures correspond to small, history–dependent deformations of the<br>background expansion.</p> <p>The framework is intentionally conservative. It introduces no new degrees of<br>freedom, preserves all local gravitational dynamics, and does not perform<br>parameter estimation or likelihood fitting. Its primary purpose is to provide<br>a transparent and reproducible language for organizing late–time expansion<br>data and assessing their internal consistency at the background level.</p> <p>All results presented in this work are fully reproducible. A companion<br>open–source repository provides a concrete implementation of the state–space<br>diagnostics and figure generation described in the article, while the present<br>record serves as the archival reference for the theoretical framework and its<br>published results.</p> <p>This release represents a conceptual milestone in the Psi–Continuum<br>program, shifting the focus from model building toward a macroscopic,<br>response–based description of cosmic expansion that remains fully compatible<br>with existing observational constraints.<br><br></p> |
| title | Psi–Continuum Cosmology v5: A Macroscopic State–Space Response Framework for Late–Time Cosmic Expansion |
| topic | cosmology late-time acceleration dark energy ΛCDM macroscopic response background expansion phenomenological cosmology observational cosmology state-space diagnostics |
| url | https://doi.org/10.5281/zenodo.18088720 |