Dissipation and vacuum selection

Details Dissipation and vacuum selection Dissipation and vacuum selection

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jhw..confe..20f&link_type=abstract

Proceedings of the 29th Johns Hopkins Workshop on current problems in particle theory: strong matter in the heavens. 1-3 August,

Physics

Scientific paper

We study the symmetry breaking pattern of a model with an O(4) scalar field sector, with both charged and neutral fields, interacting with a photon bath. Here it is shown that a selective con- densation of the neutral fields, that are not directly coupled to photons, can be achieved in the presence of a minimal "external" dissipation, i.e. not related to interactions with a bath. Pre- liminary results from simulations illustrating defect formation are also discussed. This should be relevant in the early universe or in heavy-ion collisions where dissipation occurs due to expansion.

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