72 citations · 234 across the 18 of their papers we have counts for
5 papers · 1 filter
Circular Axion String Loop Simulations: Field Theory and Effective Description
Mathieu Kaltschmidt, Javier Redondo, Ivan Rybak +2
An accurate description of axion strings and their radiation is crucial for understanding their cosmological implications. Motivated by the differing conclusions of previous works,…
New Massless Spectra from Cosmic String Cusps
Amelia Drew, Ivan Rybak
In the standard picture of cosmic strings, cusps are generic features of Nambu-Goto loops where the string momentarily reaches the speed of light. They have a characteristic sharp…
Testing classicality of gravity by gravitation decoherence
V. P. Stefanov, D. S. Mogilevtsev, I. Y. Rybak +1
Here we discuss an influence of an external weak gravitational field on the gravitational self-decoherence effect with help of the stochastic extension of regularized Shrödinger-Ne…
Stretching and Kibble scaling regimes for Hubble-damped defect networks
C. J. A. P. Martins, I. Yu. Rybak, A. Avgoustidis +1
The cosmological evolution of topological defect networks can broadly be divided into two stages. At early times they are friction-dominated due to particle scattering and therefor…
Extending the velocity-dependent one-scale model for domain walls
C. J. A. P. Martins, I. Yu. Rybak, A. Avgoustidis +1
We report on an extensive study of the evolution of domain wall networks in Friedmann-Lema\^ıtre-Robertson-Walker universes by means of the largest currently available field-theory…