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Cosmological evolution of cosmic string loops

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arxiv astro-ph/0511646 v2 pith:S5AAW2TQ submitted 2005-11-22 astro-ph gr-qchep-phhep-th

Christophe Ringeval , Mairi Sakellariadou , Francois Bouchet This is my paper
classification astro-phgr-qchep-phhep-th
keywords loopscosmicstringcosmologicalevolutionassumedbackbeen
verification ladder T0 review T1 audit T2 compute T3 formal
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The existence of a scaling evolution for cosmic string loops in an expanding universe is demonstrated for the first time by means of numerical simulations. In contrast with what is usually assumed, this result does not rely on any gravitational back reaction effect and has been observed for loops as small as a few thousandths the size of the horizon. We give the energy and number densities of expected cosmic string loops in both the radiation and matter eras. Moreover, we quantify previous claims on the influence of the network initial conditions and the formation of numerically unresolved loops by showing that they only concern a transient relaxation regime. Some cosmological consequences are discussed.

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Cited by 11 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 289 citations worldwide. Full citation record

  1. Metastable cosmic strings are broken at the start

    hep-ph 2026-01 conditional novelty 7.0 of 10

    Metastable cosmic-string networks are typically broken within a Hubble time of formation by finite-temperature effects or by pre-existing monopoles, so matching NANOGrav requires m_M^2/μ ≳ 10^3.

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  3. Gravitational Wave Imprints of a High-Quality Axion and the Origin of Flavor Hierarchies

    hep-ph 2026-06 unverdicted novelty 5.0 of 10

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  4. Cogenesis of baryon and lepton number asymmetries matching the EMPRESS Data

    hep-ph 2025-09 conditional novelty 5.0 of 10

    A U(1)_{B-L} flaton decay chain can produce both a large positive electron-neutrino asymmetry and the observed baryon asymmetry, with values matching EMPRESS and BBN for a symmetry-breaking scale around 10^10 GeV.

  5. Cosmic string gravitational wave backgrounds at LISA: I. Signal survey, template reconstruction, and model comparison

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  6. Not-quite-primordial black holes seeded by cosmic string loops

    astro-ph.CO 2025-07 conditional novelty 5.0 of 10

    Cosmic string loops moving through the early universe can seed halos that collapse into 10^5 solar mass black holes, potentially explaining JWST's little red dots.

  7. Monopoles, Strings, Walls and Gravitational waves

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    hep-ph 2026-03 conditional novelty 4.0 of 10

    SO(10) breaking through flipped SU(5) or Pati-Salam subgroups can produce GUT monopoles from merging monopole-antimonopole pairs, while the intervening quasi-stable strings emit gravitational waves from Hz to kHz.

  9. C-parity, magnetic monopoles and higher frequency gravitational waves

    hep-ph 2025-02 conditional novelty 4.0 of 10

    The C-string-wall network from SO(10) breaking with unbroken C-parity produces a gravitational wave background peaking between 100 Hz and 100 kHz for intermediate breaking scales around 10^10 to 10^12 GeV.

  10. Indirect dark matter searches with neutrino telescopes via energetic cosmic showers

    hep-ph 2025-09 reject novelty 3.0 of 10

    Bounds on Z'-mediated dark matter are derived from neutrino telescopes, freeze-in, and cosmic strings, but the telescope bounds rest on comparing a Galactic-center flux to faraway sources.

  11. The landscape of QCD axion models

    hep-ph 2020-03 unverdicted novelty 2.0 of 10

    Review classifies QCD axion models extending the standard mass-coupling window and updates bounds from cosmology, astrophysics, and experiments.

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