Abstract
Adopting the viewpoint that the standard perturbative quantization of general relativity provides an effective description of quantum gravity that is valid at ordinary energies, we show that gravity as an environment induces the rapid decoherence of stationary matter superposition states when the energy differences in the superposition exceed the Planck energy scale.
- Received 27 November 2012
DOI:https://doi.org/10.1103/PhysRevLett.111.021302
© 2013 American Physical Society
Focus
FocusGravity Makes the Universe Classical
Published 12 July 2013
Weak gravitational waves that fill the Universe are enough to disturb quantum superpositions and ensure that large objects behave according to classical physics.
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