{
  "id": "oai:papers.qnfo.org:hydrodynamic-spacetime",
  "slug": "hydrodynamic-spacetime",
  "title": "SPACETIME CONDENSATE",
  "authors": [
    "Rowan Brad Quni-Gudzinas"
  ],
  "abstract": "Standard cosmology (ΛCDM) is currently fractured by two statistically significant anomalies: the 5σ Hubble tension between early-universe (Planck) and late-universe (SH0ES) expansion rates, and the 120-order-of-magnitude vacuum catastrophe separating the theoretical Planck density (ρ_pl ≈ 10¹13 J/m³) from the observed dark energy density (ρ_Λ ≈ 10^-9 J/m³). We propose that these are not independent failures but coupled symptoms of an incorrect equation of state for the vacuum. By modeling the vacuum as a relativistic superfluid condensate near a quantum critical point (Widom line), we derive a scale-dependent bulk viscosity ζ(H) that naturally resolves the Hubble tension by modifying the expansion history H(z) without early dark energy. Furthermore, we demonstrate that the thermodynamic equilibrium of this droplet (P_vac → 0) enforces the cancellation of the vacuum energy via the Gibbs-Duhem relation, rendering the “fine-tuning” problem an artifact of assuming a non-fluid vacuum.",
  "abstract_markdown": "Standard cosmology (\\(\\Lambda\\)CDM) is currently fractured by two statistically significant anomalies: the \\(5\\sigma\\) Hubble tension between early-universe (Planck) and late-universe (SH0ES) expansion rates, and the 120-order-of-magnitude vacuum catastrophe separating the theoretical Planck density (\\(\\rho_{pl} \\approx 10^{113}\\) J/m\\(^3\\)) from the observed dark energy density (\\(\\rho_{\\Lambda} \\approx 10^{-9}\\) J/m\\(^3\\)). We propose that these are not independent failures but coupled symptoms of an incorrect equation of state for the vacuum. By modeling the vacuum as a relativistic superfluid condensate near a quantum critical point (Widom line), we derive a scale-dependent bulk viscosity \\(\\zeta(H)\\) that naturally resolves the Hubble tension by modifying the expansion history \\(H(z)\\) without early dark energy. Furthermore, we demonstrate that the thermodynamic equilibrium of this droplet (\\(P_{vac} \\to 0\\)) enforces the cancellation of the vacuum energy via the Gibbs-Duhem relation, rendering the “fine-tuning” problem an artifact of assuming a non-fluid vacuum.",
  "date": "2025-11-01",
  "first_published": "2025-11-01",
  "last_revised": "2025-11-01T00:00:00Z",
  "modified": "2025-11-01T00:00:00Z",
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  "language": "en",
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  "peer_review_status": "Not independently peer-reviewed",
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  "doi": null,
  "doi_url": null,
  "url": "https://papers.qnfo.org/papers/hydrodynamic-spacetime",
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  "version_url": "https://papers.qnfo.org/papers/hydrodynamic-spacetime/v/1.0.0",
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    "creators": [
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        "name": "Rowan Brad Quni-Gudzinas",
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    ],
    "titles": [
      {
        "title": "SPACETIME CONDENSATE"
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    "publisher": "QNFO",
    "publicationYear": "2025",
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    "dates": [
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        "description": "Standard cosmology (ΛCDM) is currently fractured by two statistically significant anomalies: the 5σ Hubble tension between early-universe (Planck) and late-universe (SH0ES) expansion rates, and the 120-order-of-magnitude vacuum catastrophe separating the theoretical Planck density (ρ_pl ≈ 10¹13 J/m³) from the observed dark energy density (ρ_Λ ≈ 10^-9 J/m³). We propose that these are not independent failures but coupled symptoms of an incorrect equation of state for the vacuum. By modeling the vacuum as a relativistic superfluid condensate near a quantum critical point (Widom line), we derive a scale-dependent bulk viscosity ζ(H) that naturally resolves the Hubble tension by modifying the expansion history H(z) without early dark energy. Furthermore, we demonstrate that the thermodynamic equilibrium of this droplet (P_vac → 0) enforces the cancellation of the vacuum energy via the Gibbs-Duhem relation, rendering the “fine-tuning” problem an artifact of assuming a non-fluid vacuum.",
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