Gravitational waves from kinks on infinite cosmic strings

Abstract

Gravitational waves emitted by kinks on infinite strings are investigated using detailed estimations of the kink distribution on infinite strings. We find that gravitational waves from kinks can be detected by future pulsar timing experiments such as SKA for an appropriate value of the the string tension, if the typical size of string loops is much smaller than the horizon at their formation. Moreover, the gravitational wave spectrum depends on the thermal history of the Universe and hence it can be used as a probe into the early evolution of the Universe.

29 pages, 4figures

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• Hyper-efficient model-independent Bayesian method for the analysis of pulsar timing data
• Probing the Universe through the Stochastic Gravitational Wave Background
• Stochastic Gravitational Wave Background generated by Cosmic String Networks: Velocity-Dependent One-Scale model versus Scale-Invariant Evolution
• The Gravitational Wave Spectrum from Cosmological B-L Breaking
• Forecast constraints on cosmic string parameters from gravitational wave direct detection experiments
• Forecast constraints on cosmic strings from future CMB, pulsar timing and gravitational wave direct detection experiments
• Implications of Gravitational-wave Production from Dark Photon Resonance to Pulsar-timing Observations and Effective Number of Relativistic Species
• Weak lensing generated by vector perturbations and detectability of cosmic strings
• Anisotropies in the gravitational wave background as a probe of the cosmic string network
• Higher Order Corrections to the Primordial Gravitational Wave Spectrum and its Impact on Parameter Estimates for Inflation
• Vacuum energy in conical space with additional boundary conditions
• Improved calculation of the gravitational wave spectrum from kinks on infinite cosmic strings
• Finite temperature bosonic charge and current densities in compactified cosmic string spacetime
• Vacuum expectation value of the energy-momentum tensor in a higher dimensional compactified cosmic string spacetime
• Black Holes as Beads on Cosmic Strings
• Higher order intercommutations in Cosmic String Collisions
• Gravitational wave background from kink-kink collisions on infinite cosmic strings
• Gravitational waves from smooth hybrid new infation
• Gravitational wave spectrum from kinks on infinite cosmic superstrings with Y-junctions
• B-mode polarization induced by gravitational waves from kinks on infinite cosmic strings
• Finite temperature charge and current densities around a cosmic string in AdS spacetime with compact dimension
• Weak lensing from self-ordering scalar fields
• Finite temperature energy-momentum tensor in compactified cosmic string spacetime
• Primordial magnetic fields from the string network