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| Format: | Preprint |
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2026
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| Online Access: | https://arxiv.org/abs/2606.00227 |
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| _version_ | 1866910281050882048 |
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| author | Ponomarenko, S. M. |
| author_facet | Ponomarenko, S. M. |
| contents | We propose and test a phenomenological model of ``dissipative memory'' in the gravitational field, where early quantum gravitational processes leave a relic signature in the cosmic expansion rate. The model is parameterized by an additional fluid with amplitude $ε$, decay scale $z_*$, and a steepness index $β$, decaying according to a Debye law $f(z) = \exp[{-(z/z_*)^β}]$. We perform a joint Bayesian analysis using baryon acoustic oscillation data from BOSS DR12 and DESI 2024, photometric distances from Pantheon$+$, and $H_0$ measurements (SHOES and Planck). A global optimization reveals that the best fit is identical to $Λ$CDM: the memory correction vanishes across the entire observable range $z \in [0.3,\,2.3]$ ($Δχ^2 < 0.01$ with three extra parameters, $Δ\mathrm{AIC}=+6.0$, $Δ\mathrm{BIC}=+9.9$). This establishes an upper bound on the memory amplitude: $ε< 0.05$ for $z_* < 2$ (95% CL). We discuss the physical interpretation of this constraint and point out observational channels where the memory effect could potentially manifest. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2606_00227 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Constraints on the Phenomenology of Dissipative Cosmological Memory from BAO (BOSS + DESI 2024) and Pantheon+ Data Ponomarenko, S. M. General Relativity and Quantum Cosmology We propose and test a phenomenological model of ``dissipative memory'' in the gravitational field, where early quantum gravitational processes leave a relic signature in the cosmic expansion rate. The model is parameterized by an additional fluid with amplitude $ε$, decay scale $z_*$, and a steepness index $β$, decaying according to a Debye law $f(z) = \exp[{-(z/z_*)^β}]$. We perform a joint Bayesian analysis using baryon acoustic oscillation data from BOSS DR12 and DESI 2024, photometric distances from Pantheon$+$, and $H_0$ measurements (SHOES and Planck). A global optimization reveals that the best fit is identical to $Λ$CDM: the memory correction vanishes across the entire observable range $z \in [0.3,\,2.3]$ ($Δχ^2 < 0.01$ with three extra parameters, $Δ\mathrm{AIC}=+6.0$, $Δ\mathrm{BIC}=+9.9$). This establishes an upper bound on the memory amplitude: $ε< 0.05$ for $z_* < 2$ (95% CL). We discuss the physical interpretation of this constraint and point out observational channels where the memory effect could potentially manifest. |
| title | Constraints on the Phenomenology of Dissipative Cosmological Memory from BAO (BOSS + DESI 2024) and Pantheon+ Data |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2606.00227 |