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<p>We show that in the spacetime dominated by a cosmological constant, given by de Sitter metric, a seed magnetic field can be generated in an ambient plasma (in a state of no magnetic field) by a general-relativistic battery. This cosmological battery depends on the interaction of spacetime curvature with inhomogeneous plasma thermodynamics. Thus, dark energy becomes a gravitational source for cosmic magnetic fields</p>

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Dark energy battery for magnetic field generation in plasmas in de Sitter spacetimes

  • 期刊论文

  • 发表日期：

    2026年3月1日

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  • Nicolás Villarroel-Sepúlveda,
  • Pablo S. Moya,
  • Felipe A. Asenjo,
  • Swadesh M. Mahajan

摘要

We show that in the spacetime dominated by a cosmological constant, given by de Sitter metric, a seed magnetic field can be generated in an ambient plasma (in a state of no magnetic field) by a general-relativistic battery. This cosmological battery depends on the interaction of spacetime curvature with inhomogeneous plasma thermodynamics. Thus, dark energy becomes a gravitational source for cosmic magnetic fields