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Title: How to simulate global cosmic strings with large string tension

Abstract

Global string networks may be relevant in axion production in the early Universe, as well as other cosmological scenarios. Such networks contain a large hierarchy of scales between the string core scale and the Hubble scale, ln( f {sub a} / H ) ∼ 70, which influences the network dynamics by giving the strings large tensions T ≅ π f {sub a} {sup 2} ln( f {sub a} / H ). We present a new numerical approach to simulate such global string networks, capturing the tension without an exponentially large lattice.

Authors:
;  [1]
  1. Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 2, Darmstadt, D-64289 Germany (Germany)
Publication Date:
OSTI Identifier:
22667624
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AXIONS; CAPTURE; COMPUTERIZED SIMULATION; COSMOLOGICAL MODELS; PARTICLE PRODUCTION; STRING MODELS; UNIVERSE

Citation Formats

Klaer, Vincent B., and Moore, Guy D., E-mail: vklaer@theorie.ikp.physik.tu-darmstadt.de, E-mail: guy.moore@physik.tu-darmstadt.de. How to simulate global cosmic strings with large string tension. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/10/043.
Klaer, Vincent B., & Moore, Guy D., E-mail: vklaer@theorie.ikp.physik.tu-darmstadt.de, E-mail: guy.moore@physik.tu-darmstadt.de. How to simulate global cosmic strings with large string tension. United States. doi:10.1088/1475-7516/2017/10/043.
Klaer, Vincent B., and Moore, Guy D., E-mail: vklaer@theorie.ikp.physik.tu-darmstadt.de, E-mail: guy.moore@physik.tu-darmstadt.de. Sun . "How to simulate global cosmic strings with large string tension". United States. doi:10.1088/1475-7516/2017/10/043.
@article{osti_22667624,
title = {How to simulate global cosmic strings with large string tension},
author = {Klaer, Vincent B. and Moore, Guy D., E-mail: vklaer@theorie.ikp.physik.tu-darmstadt.de, E-mail: guy.moore@physik.tu-darmstadt.de},
abstractNote = {Global string networks may be relevant in axion production in the early Universe, as well as other cosmological scenarios. Such networks contain a large hierarchy of scales between the string core scale and the Hubble scale, ln( f {sub a} / H ) ∼ 70, which influences the network dynamics by giving the strings large tensions T ≅ π f {sub a} {sup 2} ln( f {sub a} / H ). We present a new numerical approach to simulate such global string networks, capturing the tension without an exponentially large lattice.},
doi = {10.1088/1475-7516/2017/10/043},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 10,
volume = 2017,
place = {United States},
year = {Sun Oct 01 00:00:00 EDT 2017},
month = {Sun Oct 01 00:00:00 EDT 2017}
}