Oscillons and quasi-breathers in D+1 dimensionsTools Saffin, Paul M. and Tranberg, Anders (2007) Oscillons and quasi-breathers in D+1 dimensions. Journal of High Energy Physics, 2007 (01). 030. ISSN 1029-8479 Full text not available from this repository.AbstractWe study oscillons in D+1 space-time dimensions using a spherically symmetric ansatz. From Gaussian initial conditions, these evolve by emitting radiation, approaching ``quasi-breathers'', near-periodic solutions to the equations of motion. Using a truncated mode expansion, we numerically determine these quasi-breather solutions in 2<D<6 and the energy dependence on the oscillation frequency. In particular, this energy has a minimum, which in turn depends on the number of spatial dimensions. We study the time evolution and lifetimes of the resulting quasi-breathers, and show how generic oscillons decay into these before disappearing altogether. We comment on the apparent absence of oscillons for D>5 and the possibility of stable solutions for D<2.
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