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Spacetime Metric and Lightcone Fluctuations

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Abstract

Several aspects of the quantum fluctuations ofspacetime geometry are discussed. A model for lightconefluctuations is described in which a bath of gravitonsleads to metric fluctuations. The operational definitions of such phenomena as lightcone andhorizon fluctuations are examined. The problem ofdescribing fluctuations of a quantum stress tensor isalso discussed. The possibility that one can gain some insights about spacetime geometry fluctuationsfrom studies of the force fluctuations on materialbodies is suggested.

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Authors
  1. L. H. Ford
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Ford, L.H. Spacetime Metric and Lightcone Fluctuations. International Journal of Theoretical Physics 38, 2941–2958 (1999). https://doi.org/10.1023/A:1026608132178

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