Stochastic Gravitational Wave Background from Global Cosmic Strings

Abstract

Global cosmic strings are generically predicted in particle physics beyond the Standard Model, e.g., a post-inflationary global $U(1)$ symmetry breaking which may associate with axion-like dark matter. We demonstrate that although subdominant to Goldstone emission, gravitational waves (GWs) radiated from global strings can be observable with current or future GW detectors. The frequency spectrum of such GWs is also shown to be a powerful tool to probe the Hubble expansion rate of the Universe at times prior to the Big Bang nucleosynthesis where the standard cosmology has yet to be tested.

arXiv commentJournal version, 9 pages, 6 figures

References in corpus (36)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• Planck 2015 results. XIII. Cosmological parameters
• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• Cosmic strings
• Characterization of the LIGO detectors during their sixth science run
• Exploring the Sensitivity of Next Generation Gravitational Wave Detectors
• Sensitivity Studies for Third-Generation Gravitational Wave Observatories
• Inflation Dynamics and Reheating
• Cosmological Backgrounds of Gravitational Waves
• BICEP2 / Keck Array VI: Improved Constraints On Cosmology and Foregrounds When Adding 95 GHz Data From Keck Array
• Wino Cold Dark Matter from Anomaly-Mediated SUSY Breaking
• Cosmic F- and D-strings
• Science with the space-based interferometer LISA. IV: Probing inflation with gravitational waves
• Formation and evolution of cosmic D-strings
• Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO's First Observing Run
• Placing limits on the stochastic gravitational-wave background using European Pulsar Timing Array data
• Axions from Strings: the Attractive Solution
• Quintessence and the Relic Density of Neutralinos
• A new cosmic microwave background constraint to primordial gravitational waves
• Gravitational-wave cosmology across 29 decades in frequency
• The dark-matter axion mass
• A review of gravitational waves from cosmic domain walls
• Probing the pre-BBN universe with gravitational waves from cosmic strings
• Testing Seesaw and Leptogenesis with Gravitational Waves
• Global String Radiation
• Exact Scale-Invariant Background of Gravitational Waves from Cosmic Defects
• Decay of Cosmic String Loops Due to Particle Radiation
• Primordial Black Holes from the QCD axion
• Audible Axions
• Gravitational waves from self-ordering scalar fields
• How to simulate global cosmic strings with large string tension
• Radiation from cosmic string standing waves
• Cosmic Microwave Background constraints for global strings and global monopoles
• Scaling properties of cosmological axion strings
• Improved constraint on the primordial gravitational-wave density using recent cosmological data and its impact on cosmic string models

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• Cosmology with the Laser Interferometer Space Antenna
• Beyond the Standard Models with Cosmic Strings
• Detection of Early-Universe Gravitational Wave Signatures and Fundamental Physics
• Observing Invisible Axions with Gravitational Waves
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• Baryogenesis from ultralight primordial black holes and strong gravitational waves from cosmic strings
• Gravitational Waves from Global Cosmic Strings and Cosmic Archaeology
• Gravitational Wave and CMB Probes of Axion Kination
• Have pulsar timing array methods detected a cosmological phase transition?
• Causal gravitational waves as a probe of free streaming particles and the expansion of the Universe
• Spectral separation of the stochastic gravitational-wave background for LISA: observing both cosmological and astrophysical backgrounds
• New Perspectives on Axion Misalignment Mechanism
• Gravitational Wave Bursts as Harbingers of Cosmic Strings Diluted by Inflation
• Spectral separation of the stochastic gravitational-wave background for LISA in the context of a modulated Galactic foreground
• Irreducible background of gravitational waves from a cosmic defect network: update and comparison of numerical techniques
• A CMB Millikan Experiment with Cosmic Axiverse Strings
• Gravitational waves from axion-like particle cosmic string-wall networks
• CMB birefringence from ultra-light axion string networks
• Catastrogenesis: DM, GWs, and PBHs from ALP string-wall networks
• Quintessential inflation: A tale of emergent and broken symmetries
• Ultrahigh frequency primordial gravitational waves beyond the kHz: The case of cosmic strings
• Primordial black hole dark matter from catastrogenesis with unstable pseudo-Goldstone bosons
• Constraining the Stochastic Gravitational Wave Background with Photometric Surveys
• The QCD Axion and Gravitational Waves in light of NANOGrav results
• New universal property of cosmological gravitational wave anisotropies
• Gravitational Wave Emission from a Cosmic String Loop, I: Global Case
• Precision Early Universe Cosmology from Stochastic Gravitational Waves
• Gravitational waves from melting cosmic strings
• Impact of a Midband Gravitational Wave Experiment On Detectability of Cosmological Stochastic Gravitational Wave Backgrounds
• Searching For Stochastic Gravitational Waves Below a Nanohertz
• Precision cosmology with primordial GW backgrounds in presence of astrophysical foregrounds
• Astrophysical neutrino oscillations after pulsar timing array analyses
• Catastrogenesis with unstable ALPs as the origin of the NANOGrav 15 yr gravitational wave signal
• Gravitational-wave signatures from reheating
• Enhanced Early Galaxy Formation in JWST from Axion Dark Matter?
• Using Pulsar Parameter Drifts to Detect Sub-Nanohertz Gravitational Waves
• Stochastic gravitational wave background: birth from string-wall death
• Imprint of Early Dark Energy in Stochastic Gravitational Wave Background
• Present and future of CosmoLattice
• A universal bound on the duration of a kination era
• Cosmic Strings as Dynamical Dark Energy: Novel Constraints
• Complementarity between Cosmic String Gravitational Waves and long-lived particle searches in a laboratory
• Probing Picohertz Gravitational Waves with Pulsars
• Gravitational wave and dark matter from Axion-Higgs string
• Complementary signatures of $\alpha -$attractor inflation in CMB and cosmic string Gravitational Waves
• Imprints of an early matter-dominated era arising from dark matter dilution mechanism on cosmic string dynamics and gravitational wave signatures
• Emission of Nambu-Goldstone bosons from the semilocal string network
• Detecting stochastic gravitational wave background from cosmic strings with next-generation detector networks: Component separation based on a multi-source astrophysical foreground noise model
• Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis: cosmic strings