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Gravitons and Lightcone Fluctuations II: Correlation Functions

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arxiv gr-qc/9604052 v1 pith:D7EZXBMV submitted 1996-04-27 gr-qc

L.H. Ford , N. F. Svaiter This is my paper · ORCID
classification gr-qc
keywords flightgravitonslightconeclassicalcorrelationfluctuatingphotonstime
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A model of a fluctuating lightcone due to a bath of gravitons is further investigated. The flight times of photons between a source and a detector may be either longer or shorter than the light propagation time in the background classical spacetime, and will form a Gaussian distribution centered around the classical flight time. However, a pair of photons emitted in rapid succession will tend to have correlated flight times. We derive and discuss a correlation function which describes this effect. This enables us to understand more fully the operational significance of a fluctuating lightcone. Our results may be combined with observational data on pulsar timing to place some constraints on the quantum state of cosmological gravitons.

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Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 55 citations worldwide. Full citation record

  1. Probabilistic Causality from Graviton Fluctuations

    hep-th 2026-06 unverdicted novelty 7.0 of 10

    In a thermal state of gravitons at temperature T, metric fluctuations induce a Gaussian spread in the causal structure of a scalar field with Var(x²) = 16 G_N T t³ / 3 after vacuum subtraction.

  2. Quantum Matter Makes Lightcones Quantum

    gr-qc 2026-06 unverdicted novelty 6.0 of 10

    Quantum matter sources an operator-valued Shapiro delay that promotes causal boundaries to noncommuting observables and allows superpositions of causal relations between spacetime points.

  3. Analog model for Euclidean wormholes: Bose-Einstein condensate with dirty surfaces

    gr-qc 2024-12 reject novelty 4.0 of 10

    Random surface fields in a Bose-Einstein condensate are claimed to generate non-local effective interactions that mimic Euclidean wormholes, with a disorder-induced Casimir pressure as the leading consequence.

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