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Noise and decoherence induced by gravitons

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arxiv 2007.09838 v2 pith:KAOQDJIK submitted 2020-07-20 hep-th gr-qchep-phquant-ph

Sugumi Kanno , Jiro Soda , Junsei Tokuda This is my paper
classification hep-thgr-qchep-phquant-ph
keywords gravitonsdecoherencenoiseinducedquantumamplitudecausedconsider
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We study quantum noise and decoherence induced by gravitons. We derive a Langevin equation of geodesic deviation in the presence of gravitons. The amplitude of noise correlations tells us that large squeezing is necessary to detect the noise. We also consider the decoherence of spatial superpositions of two massive particles caused by gravitons in the vacuum state and find that gravitons could give a relevant contribution to the decoherence. The decoherence induced by gravitons would offer new vistas to test quantum gravity in tabletop experiments.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Suppressed Quantum Effects of Weakly Coupled Waves

    hep-ph 2026-07 conditional novelty 7.0 of 10

    Nonclassical (quantum) signatures of weakly coupled waves are suppressed by an extra power of the tiny conversion efficiency η (~10^-21 for axions, ~10^-33 for gravitons), so experiments cannot establish the quantizat...

  2. Graviton-induced which-path decoherence in matter-wave interferometry

    gr-qc 2026-07 conditional novelty 6.0 of 10

    Radiative graviton decoherence in matter-wave interferometers is shown to be far below detection, even with strongly squeezed inflationary graviton states.

  3. Binary gravitational waves as probes of quantum graviton states

    gr-qc 2025-10 reject novelty 6.0 of 10

    Gravitational waves from binaries can, in principle, carry sub-Poissonian graviton statistics inherited from a squeezed primordial vacuum, offering a new signature of quantum gravity.

  4. Observer Time from Causality in Perturbative Quantum Gravity

    hep-th 2025-06 conditional novelty 5.0 of 10

    A lightbulb-and-mirror protocol defines diffeomorphism-invariant elapsed proper time, and its leading quantum gravity correction makes the time a noncommuting quantum operator.

  5. Intermittency in Quantum Graviton-Phonon Conversion

    gr-qc 2026-07 conditional novelty 4.0 of 10

    Exact rotating-wave treatment of graviton-phonon conversion restores unitarity and predicts intermittent bursts for coherent states and suppression for squeezed states.

  6. Toward graviton detection via photon-graviton quantum state conversion

    quant-ph 2025-07 conditional novelty 4.0 of 10

    Photon-to-graviton conversion in a magnetic field is shown to be enhanced by squeezed photon states and by the squeezed vacuum of primordial gravitational waves, with entanglement generation proposed as a quantum signature.

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