| Popis: |
The examples of symmetry breaking discussed in Chap. 16 may be elegantly incorporated into the standard big bang model (Fig. 17.1). In this model, the universe is, for the first few fractions of a second (time is a parameter of the model!), a genuine, if exotic, quantum system where all interactions are unified. During the first stage of the cooling of the universe, gravity separates out from the other interactions. Subsequently, the electro-weak interaction separates from the strong interaction; simultaneously, the leptons separate from the quarks. |
