Dec 14 – 15, 2023
Centre for Particle Theory
Europe/London timezone

Probing the curvature of the cosmos from quantum entanglement due to gravity

Dec 14, 2023, 2:50 PM
Ph8 (Centre for Particle Theory)


Centre for Particle Theory

Gong Show Talk (5 mins) Gong Show Talks


Abhinove Nagarajan Seenivasan (The University of Sheffield)


Ideas from quantum information theory are becoming increasingly useful to tackle problems in quantum gravity. Gravity mediated entanglement has emerged as a novel idea to understand whether the gravitational field is (at least perturbatively) quantum. If gravity is quantum then two massive particles must become entangled through their gravitational interaction. In this work, we seek to understand how this would play out for two massive particles in an expanding background. We show how the the background curvature manifests in the entanglement generated between two oscillating massive particles. More generally, we argue that gravity mediated entanglement is sensitive to the background curvature and can thus be a probe of spacetime curvature.

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Other category: Perturbative Quantum Gravity
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Primary author

Abhinove Nagarajan Seenivasan (The University of Sheffield)


Dr Suddhasattwa Brahma (University of Edinburgh)

Presentation materials