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We reexamine a model of the two-scalar system proposed previously for understanding a small but nonzero cosmological constant. The model provides solutions of the scalar-field energy ₒ which behaves as a true constant for a limited time interval rather than in the way of tracker- or scaling-type variations. This causes mini-inflation, as indicated by recent observations. As another novel feature, ₒ and the ordinary matter density ₌ always fall off side by side, but interlacing, also as (time) ^-2 as an overall behavior in conformity with the scenario of a decaying cosmological constant. Mini-inflation occurs whenever ₒ overtakes ₌, which may happen more than once, shedding new light on the coincidence problem. We present a new example of the solution, and offer an intuitive interpretation of the mechanism of the nonlinear dynamics. We also discuss the chaoslike nature of the solution.
Yasunori Fujii (Mon,) studied this question.