Non-abelian Q-stars

Details Non-abelian Q-stars Non-abelian Q-stars

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nuphb.321..430s&link_type=abstract

Nuclear Physics B, Volume 321, Issue 2, p. 430-438.

Physics

Nuclear Physics

30

Scientific paper

We construct a new class of non-topological soliton stars which appears in global non-abelian field theories coupled to classical Einstein gravity. It is the analogue of the Q-stars recently found in abelian theories. If μ (of order 10- to 104 GeV) is a free-particle inverse Compton wavelength and mPl is the Planck mass, these objects have energy densities ɛ ~ μ4, radii r ~ mPl/μ2, global charges q ~ mPl3/μ3, and masses M ~ mPl3/μ2 obeying a generalized Chandrasekhar limit. We give an explicit SO(3) example which demonstrates their very simple structure: the stellar surface reproduces the non-abelian Q-ball, but within the star the fields are no longer constant.

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