# On Gravity's role in Quantum State Reduction

@article{Penrose1996OnGR, title={On Gravity's role in Quantum State Reduction}, author={Roger Penrose}, journal={General Relativity and Gravitation}, year={1996}, volume={28}, pages={581-600} }

The stability of a quantum superposition of two different stationary mass distributions is examined, where the perturbing effect of each distribution on the space-time structure is taken into account, in accordance with the principles of general relativity. It is argued that the definition of the time-translation operator for the superposed space-times involves an inherent ill-definedness, leading to an essential uncertainty in the energy of the superposed state which, in the Newtonian limit…

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