Quantum gravity in a laboratory?:

The characteristic - Planck - energy scale of quantum gravity makes experimental access to the relevant physics apparently impossible. Nevertheless, low energy experiments linking gravity and the quantum have been undertaken: the Page and Geilker quantum Cavendish experiment, and the Colella-Overhau...

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Bibliographic Details
Main Authors: Huggett, Nick 1966- (Author), Linnemann, Niels S. (Author), Schneider, Mike D. (Philosopher of science) (Author)
Format: Electronic eBook
Language:English
Published: Cambridge, UK Cambridge University Press 2023
Series:Cambridge elements
Subjects:
Online Access:BSB01
BTU01
FHN01
UBG01
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Summary:The characteristic - Planck - energy scale of quantum gravity makes experimental access to the relevant physics apparently impossible. Nevertheless, low energy experiments linking gravity and the quantum have been undertaken: the Page and Geilker quantum Cavendish experiment, and the Colella-Overhauser-Werner neutron interferometry experiment, for instance. However, neither probes states in which gravity remains in a coherent quantum superposition, unlike - it is claimed - recent proposals. In essence, if two initially unentangled subsystems interacting solely via gravity become entangled, then theorems of quantum mechanics show that gravity cannot be a classical subsystem. There are formidable challenges to such an experiment, but remarkably, tabletop technology into the gravity of very small bodies has advanced to the point that such an experiment might be feasible in the near future. This Element explains the proposal and what it aims to show, highlighting the important ways in which its interpretation is theory-laden
Item Description:Title from publisher's bibliographic system (viewed on 13 Jul 2023)
Physical Description:1 Online-Ressource (89 Seiten)
ISBN:9781009327541
DOI:10.1017/9781009327541

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