Q-ball dynamics from atomic Bose-Einstein condensates

Enqvist K, Laine M (2003)
Journal of Cosmology and Astroparticle Physics 2003(08).

Journal Article | Published | English

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Relativistic scalar field theories with a conserved global charge Q often possess (meta) stable spherically symmetric soliton solutions, called Q-balls. We elaborate on the perfect formal analogy which exists between Q-balls and spherically symmetric solitons in certain non-relativistic atomic Bose-Einstein condensates, for which the dominant interatomic interaction can be tuned attractive. In a harmonic trap, present in existing experiments, the Q-ball solution is modified in an essential way. If the trap is significantly prolongated in one direction, however, then genuine solitons do appear, and actual experimental data can be obtained for some of the Q-ball properties studied numerically in the relativistic cosmological context, such as their formation and collisions. We also suggest conditions under which the same cosmologically relevant analogies could be extended to the fully three-dimensional case.
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Enqvist K, Laine M. Q-ball dynamics from atomic Bose-Einstein condensates. Journal of Cosmology and Astroparticle Physics. 2003;2003(08).
Enqvist, K., & Laine, M. (2003). Q-ball dynamics from atomic Bose-Einstein condensates. Journal of Cosmology and Astroparticle Physics, 2003(08).
Enqvist, K., and Laine, M. (2003). Q-ball dynamics from atomic Bose-Einstein condensates. Journal of Cosmology and Astroparticle Physics 2003.
Enqvist, K., & Laine, M., 2003. Q-ball dynamics from atomic Bose-Einstein condensates. Journal of Cosmology and Astroparticle Physics, 2003(08).
K. Enqvist and M. Laine, “Q-ball dynamics from atomic Bose-Einstein condensates”, Journal of Cosmology and Astroparticle Physics, vol. 2003, 2003.
Enqvist, K., Laine, M.: Q-ball dynamics from atomic Bose-Einstein condensates. Journal of Cosmology and Astroparticle Physics. 2003, (2003).
Enqvist, K, and Laine, Mikko. “Q-ball dynamics from atomic Bose-Einstein condensates”. Journal of Cosmology and Astroparticle Physics 2003.08 (2003).
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