ACP Seminar (Astronomy - Cosmology - Particle Physics)

Speaker: Alexander Dolgov (Ferrara)
Title: Electric and magnetic screening in plasma with charged Bose-Einstein condensate
Date (JST): Thu, Feb 09, 2012, 15:30 - 16:30
Place: Seminar Room A
Related File: 616.pdf
Abstract: Screening of impurities in plasma with Bose-Einstein condensate of charged scalar of vector field is studied. It is shown that it is drastically different from the usual Debye screening, demonstrating quite unusual features. In the case of charged vector field it may condense either in ferromagnetic or antiferromagnetic state. If ferromagnetic state is favorable, the vector boson condensation in the early universe might create quite strong magnetic fields at large scales. They could be seeds for galactic magnetic field generation.

The calculations are done form the first principles at a simple level and no knowledge of thermal field theory is necessary.