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Superconducting Cosmic Strings and Primordial Nucleosynthesis

Malaney, R. A. and Butler, M. N. (1989) Superconducting Cosmic Strings and Primordial Nucleosynthesis. Physical Review Letters, 62 (2). pp. 117-120. ISSN 0031-9007. doi:10.1103/PhysRevLett.62.117.

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We show that the presence of superconducting cosmic strings in the early Universe may have dramatic consequences for primordial nucleosynthesis. Due to the enormous currents that they potentially can carry, very large magnetic fields can be produced in the vicinity of such strings. As they then move through the primordial plasma, charged particles are deflected away by the magnetic pressure surrounding the strings. We show that the predicted primordial abundances can differ radically from standard big-bang predictions, and may even be consistent with an Ωb=1 universe.

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Additional Information:©1989 The American Physical Society Received 9 June 1988; revised 17 October 1988 The authors are very grateful to Roger D. Blandford, Milan Mijić, John P. Preskill, and Martin J. Savage for helpful discussions and comments. This work has been supported by NSF Grants Nos. PHY85-05682 and No. PHY86-04197 (R.A.M.) and the Natural Sciences and Engineering Research Council, Canada (M.N.B.).
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Deposited On:17 Dec 2006
Last Modified:08 Nov 2021 20:36

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