Ferromagnetic properties of charged vector boson condensate

Abstract

Bose-Einstein condensation of W bosons in the early universe is studied. It is shown that, in the broken phase of the standard electroweak theory, condensed W bosons form a ferromagnetic state with aligned spins. In this case the primeval plasma may be spontaneously magnetized inside macroscopically large domains and form magnetic fields which may be seeds for the observed today galactic and intergalactic fields. However, in a modified theory, e.g. in a theory without quartic self interactions of gauge bosons or for a smaller value of the weak mixing angle, antiferromagnetic condensation is possible. In the latter case W bosons form scalar condensate with macroscopically large electric charge density i.e. with a large average value of the bilinear product of W-vector fields but with microscopically small average value of the field itself.

arXiv commentSome numerical estimates and discussions are added according to the referee's suggestions. This version is accepted for publication in JCAP

References in corpus (22)

• Spinor Bose Condensates in Optical Traps
• Bose-Einstein condensation with internal degrees of freedom in alkali atom gases
• Magnetic Fields in the Early Universe
• Quantum spins mixing in spinor Bose-Einstein condensates
• Neutrinos in cosmology
• Cosmological bounds on neutrino degeneracy improved by flavor oscillations
• The Magnetized Universe
• Fragmented and Single Condensate Ground States of Spin-1 Bose Gas
• Dynamical instability and domain formation in a spin-1 Bose condensate
• Generation of Large Lepton Asymmetries
• Naturally Large Cosmological Neutrino Asymmetries in the MSSM
• Supersymmetry and Broken Symmetries at High Temperature
• Large Lepton Number of the Universe and The Fate of Topological Defects
• Do neutrino flavor oscillations forbid large lepton asymmetry of the universe ?
• Charged Condensate and Helium Dwarf Stars
• Effective Lagrangian and Quantum Screening in Charged Condensate
• Electrodynamics at non-zero temperature, chemical potential, and Bose condensate
• The Standard Model of Electroweak Interactions
• Generation of Magnetic Fields in Cosmology
• Effective Field Theory for Quantum Liquid in Dwarf Stars
• Field Theory for a Deuteron Quantum Liquid
• Screening effects in plasma with charged Bose condensate

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• Screening of magnetic fields by charged Bose condensate
• Condensation of charged bosons in plasma physics and cosmology
• Ferromagnetic properties of charged vector bosons condensate in the early universe
• Primordial magnetic field generation in the Quark Gluon Plasma phase