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Noncommutativity in Space and Primordial Magnetic Field

Research output: Contribution to journalJournal article

Published

Article number011301
Journal publication date19/06/2001
JournalPhysical Review Letters
Journal number1
Volume87
Number of pages4
Original languageEnglish

Abstract

In this paper we show that noncommutativity in spatial coordinates can generate magnetic field in the early Universe on a horizon scale. The strength of such a magnetic field depends on the number density of massive charged particles present at a given moment. This allows us to trace back the temperature dependence of the noncommutativity scale from the bounds on primordial magnetic field coming from nucleosynthesis.

Bibliographic note

© 2001 The American Physical Society Revtex, 4 pages, v3: very minor changes, the version to appear in PRL