From Quantum Unstable Systems to the Decaying Dark Energy: Cosmological Implications

Figure 3

The diagram of the evolution of the Hubble function with respect to the cosmological time , which is described by (40) and (43) with and for every . For illustration, the value of the parameter is chosen as . The top blue curve describes the evolution of the Hubble function in the CDM model. The middle curve describes one for (43) and the bottom red curve describes one for (40). The Hubble function is expressed in and the cosmological time is expressed in . Note that these models are not qualitatively different.