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Three Quantum Aspects of Gravity

D. V. Ahluwalia
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Abstract

It is argued that (a) In the quantum realm test-particle masses have non-trivial observability which induces a non-geometric element in gravity, (b) Any theory of quantum gravity, on fundamental grounds, must contain an element of non-locality that makes position measurements non-commutative, and (c) The classical notion of free fall does not readily generalize to the quantum regime.

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D. V. Ahluwalia. 1997-11-25. Three Quantum Aspects of Gravity. https://arxiv.org/abs/gr-qc/9711075

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