Correspondence of I- and Q-balls as Non-relativistic Condensates
arXiv:1405.3233 · doi:10.1088/1475-7516/2014/08/051
Abstract
If a real scalar field is dominated by non-relativistic modes, then it approximately conserves its particle number and obeys an equation that governs a complex scalar field theory with a conserved global U(1) symmetry. From this fact, it is shown that the I-ball (oscillon) can be naturally understood as a projection (e.g., real part) of the non-relativistic Q-ball solution. In particular, we clarify that the stability of the I-ball is guaranteed by the U(1) symmetry in the corresponding complex scalar field theory as long as the non-relativistic condition holds. We also discuss the longevity of I-ball from the perspective of the complex scalar field in terms of U(1) charge violating processes.
16 pages, 1 figure; v2: published version
References in corpus (8)
- Quantum Radiation of Oscillons
- Flat-top oscillons in an expanding universe
- Oscillons and Quasi-breathers in the ϕ^4 Klein-Gordon model
- Dynamics of oscillating scalar field in thermal environment
- Small amplitude quasi-breathers and oscillons
- Axions: Bose Einstein Condensate or Classical Field?
- Numerical Investigations of Oscillons in 2 Dimensions
- Decay of Scalar Condensation in Quantum Field Theory