# Cosmological evolution as squeezing: a toy model for group field cosmology

@article{Adjei2018CosmologicalEA, title={Cosmological evolution as squeezing: a toy model for group field cosmology}, author={Eugene Adjei and Steffen Gielen and W. Wieland}, journal={Classical and Quantum Gravity}, year={2018}, volume={35}, pages={105016} }

We present a simple model of quantum cosmology based on the group field theory (GFT) approach to quantum gravity. The model is formulated on a subspace of the GFT Fock space for the quanta of geometry, with a fixed volume per quantum. In this Hilbert space, cosmological expansion corresponds to the generation of new quanta. Our main insight is that the evolution of a flat Friedmann–Lemaitre–Robertson–Walker universe with a massless scalar field can be described on this Hilbert space as… CONTINUE READING

16 Citations

#### References

##### Publications referenced by this paper.

SHOWING 1-10 OF 39 REFERENCES