SAMOP 2023 – wissenschaftliches Programm

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PV: Plenary talks

PV I

PV I: Plenarvortrag

Montag, 6. März 2023, 09:00–09:45, E415

Probing the quantum nature of gravity in table-top experiments — •Markus Aspelmeyer — University of Vienna, Faculty of Physics, Vienna, Austria — Austrian Academy of Sciences, IQOQI, Vienna, Austria

No experiment today provides evidence that gravity requires a quantum description. The growing ability to achieve quantum optical control over massive solid-state objects may change that situation -- by enabling experiments that directly probe the phenomenology of quantum states of gravitational source masses. This can lead to experimental outcomes that are inconsistent with the predictions of a purely classical field theory of gravity. Such 'Quantum Cavendish' experiments will rely on delocalized motional quantum states of sufficiently massive objects and gravity experiments on the micrometer scale. I review the current status in the lab and the challenges to be overcome for future experiments.