Comment on high resolution simulations of cosmic strings. 1: Network evoloution

Details Comment on high resolution simulations of cosmic strings. 1: Network evoloution Comment on high resolution simulations of cosmic strings. 1: Network evoloution

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990stin...9026734t&link_type=abstract

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Approximation, Cosmology, Interpolation, String Theory, Estimates, High Resolution, Network Analysis, Simulation

Scientific paper

Comments are made on recent claims (Albrecht and Turok, 1989) regarding simulations of cosmic string evolution. Specially, it was claimed that results were dominated by a numerical artifact which rounds out kinks on a scale of the order of the correlation length on the network. This claim was based on an approximate analysis of an interpolation equation which is solved herein. The typical rounding scale is actually less than one fifth of the correlation length, and comparable with other numerical cutoffs. Results confirm previous estimates of numerical uncertainties, and show that the approximations poorly represent the real solutions to the interpolation equation.

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