Magnetic field generation during the cosmological QCD phase transition

Details Magnetic field generation during the cosmological QCD phase transition Magnetic field generation during the cosmological QCD phase transition

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344l..49q&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 344, Sept. 15, 1989, p. L49-L51.

Astronomy and Astrophysics

Astrophysics

121

Electromagnetic Fields, Interstellar Magnetic Fields, Magnetohydrodynamics, Quantum Chromodynamics, Baryons, Field Theory (Physics), Galactic Evolution, Nuclear Astrophysics, Quarks, Thermoelectricity

Scientific paper

If the QCD phase transition is first-order, then a thermoelectric mechanism generates magnetic fields in the early universe. For reasonable transition parameters, it is found that 5-G magnetic fields could form on scales of 1 m when the temperature of the universe was around 150 MeV. These primordial fields, a consequence of the QCD phase transition, have a magnitude of about 2 x 10 to the -17th G at the time when galaxy formation begins.

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