Classical and quantum cosmology of the little rip abrupt event

Understand

We analyze from a classical and quantum point of view the behavior of the universe close to a little rip, which can be interpreted as a big rip sent towards the infinite future.

• Like a big rip singularity, a little rip implies the destruction of all bounded structure in the Universe and is thus an event where quantum effects could be important.
• We present here a new phantom scalar field model for the little rip.
• The quantum analysis is performed in quantum geometrodynamics, with the Wheeler-DeWitt equation as its central equation.