# Minisuperspace Quantisation via Conditional Symmetries

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## Abstract

We review the canonical quantisation of minisuperspace models by promoting to operators the constraints as well as the additional symmetries of the metric of the configuration space of variables. We describe the classical and quantum formulation of the theory and give an application of this approach to the FLRW spacetime coupled to a massless scalar field.

## Keywords

Minisuperspace FLRW universe Bohmian interpretation## Notes

### Acknowledgements

I would like to thank the organisers of the 1st Domoschool for their kind hospitality and the high level of lectures they provided during the school. This work was supported by the grant GAČR 14-37086G.

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