Physics – General Physics
Scientific paper
2010-12-16
Physics
General Physics
8 pages, no figures
Scientific paper
In this work we suggest an original, simple dynamical model of the cosmological constant. According to this model (contemporary) universe contains two different types of the matter, usual and extraordinary. These two types of the matter interact by immediate, very fast (much faster than gravitational interaction) and inelastic collision. Final effects of such collision (usual matter momentum and kinetic energy increase and extraordinary matter disappearance) described by momentum and total energy (including deformation energy) conservation laws corresponding effectively to the second Friedman equation for flat universe with cosmological constant. Also, according to these laws mass and speed of the extraordinary matter before collision is relatively close to the usual mass and speed of the matter. Later dynamical evolution of the universe filled effectively only with usual matter (with kinetic energy depending of the scale factor and cosmological constant and potential energy representing simply classical Newtonian gravitational potential energy) can be simply described by corresponding Lagrange equation identical to the first Friedman equation for flat universe with cosmological constant. In this way we obtain a simple dynamical model of the cosmological constant able to satisfy all existing observational data and, probably, many problem of the theoretical interpretation of the cosmological constant (fine tuning problem). (In fact, according to the conceptual similarities with quantum solid and liquid state physics extraordinary matter can be considered as the quasi-particles, or excitations, in some condensed system.)
Kapor Darko
Pankovic Vladan
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