# Linear Stability of Semiclassical Theories of Gravity

@article{Meda2022LinearSO, title={Linear Stability of Semiclassical Theories of Gravity}, author={Paolo Meda and Nicola Pinamonti}, journal={Annales Henri Poincar{\'e}}, year={2022} }

The linearization of semiclassical theories of gravity is investigated in a toy model, consisting of a quantum scalar field in interaction with a second classical scalar field which plays the role of a classical background. This toy model mimics also the evolution induced by semiclassical Einstein equations, such as the one which describes the early universe in the cosmological case. The equations governing the dynamics of linear perturbations around simple exact solutions of this toy model are…

## One Citation

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