Recently, we introduced the notion of "tracker fields," aformof quintessence which has an attractor-like solution. Using this concept, we showed how to construct models in which the ratio of qui ntessence to matter densities today is independent of initial conditions. Here we apply the same idea to the standard cold dark matter component in cases where it is composed of oscillating fields. Combining these ideas, we can construct a model in which quintessence, cold dark matter, and ordinary matter all contribute comparable amounts to the total energy density today irrespective of initial conditions.
|Original language||English (US)|
|Number of pages||5|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - 1999|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics