TH BSM Forum

Spin entanglement witness for testing quantum nature of gravity in a laboratory

by Prof. Anupam Mazumdar (Groningen University)

4/2-037 - TH meeting room (CERN)

4/2-037 - TH meeting room


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 It is desirable to seek an experimental protocol to test whether gravity is indeed mediated by a quantum nature of graviton.
I will argue that it is possible to test quantum nature of gravity in a laboratory, which involves creating macroscopic quantum superposition, reading out the witness of the superposition, and last but not least establishing non-classical correlation (very similar to Bell’s original work)
determined by the quantum entanglement. I will briefly discuss what are the challenges involved and how can we overcome them by improving  the technology.