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The scaling evolution of cosmological constant

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arxiv hep-th/0012227 v3 pith:22XUMC2E submitted 2000-12-22 hep-th astro-phgr-qchep-ph

classification hep-thastro-phgr-qchep-ph
keywords cosmologicalconstantrunningconstantsfieldgravitationalquantumscaling
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In quantum field theory the parameters of the vacuum action are subject to renormalization group running. In particular, the ``cosmological constant'' is not a constant in a quantum field theory context, still less should be zero. In this paper we continue with previous work, and derive the particle contributions to the running of the cosmological and gravitational constants in the framework of the Standard Model in curved space-time. At higher energies the calculation is performed in a sharp cut off approximation. We assess, in two different frameworks, whether the scaling dependences of the cosmological and gravitational constants spoil primordial nucleosynthesis. Finally, the cosmological implications of the running of the cosmological constant are discussed.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Quantum-Ordering Ambiguities in Weak Chern-Simons 4D Gravity and Metastability of the Condensate-Induced Inflation

    gr-qc 2024-11 conditional novelty 5.0 of 10

    In a Chern-Simons gravity model, quantum-ordering-dependent imaginary parts of the gravitational anomaly condensate give inflation a finite lifetime and imply the string scale is about one tenth of the Planck mass.

  2. QCD-driven dark matter: AQNs formation and observational tests

    hep-ph 2026-03 unverdicted novelty 4.0 of 10

    Dark matter is composed of composite quark-antiquark objects stabilized by axion domain walls, offering a unified account of dark matter and baryon asymmetry.

  3. New cosmological constraints on the evolution of dark matter energy density

    astro-ph.CO 2025-05 conditional novelty 4.0 of 10

    The dark matter density evolution parameter ε is constrained to -0.0073^{+0.0029}_{-0.0033}, a 2.4σ preference for a dark matter-vacuum interaction.

  4. Running Vacuum in the expanding Universe: a unified QFT paradigm for Inflation and Dark Energy

    gr-qc 2026-06 unverdicted novelty 3.0 of 10

    The running vacuum model derives dynamical vacuum energy from QFT in curved spacetime, using H^4 terms for inflation and H^2 terms for dark energy while G evolves logarithmically.

  5. In the Realm of the Hubble tension $-$ a Review of Solutions

    astro-ph.CO 2021-03 unverdicted novelty 2.0 of 10

    A review summarizing the Hubble constant tension and proposed solutions from new physics that restore agreement between Planck CMB data and local H0 measurements within 1-2 sigma.

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