Q ball formation through Affleck-Dine mechanism

Sep, 1999
4 pages
Published in:
  • Phys.Rev.D 61 (2000) 041301
e-Print:

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Abstract:
We present the full nonlinear calculation of the formation of a Q-ball through the Affleck-Dine (AD) mechanism by numerical simulations. It is shown that large Q-balls are actually produced by the fragmentation of the condensate of a scalar field whose potential is very flat. We find that the typical size of a Q-ball is determined by the most developed mode of linearized fluctuations, and almost all the initial charges which the AD condensate carries are absorbed into the formed Q-balls, whose sizes and the charges depend only on the initial charge densities.
  • field equations: Q-ball
  • field theory: scalar
  • field theory: condensation
  • fluctuation: linear
  • charge: density
  • dimension: 1-3
  • lattice field theory
  • numerical calculations