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Testing Quantum Aspects of Gravity in a Laboratory 2022

Online

28 March - 1 April 2022

Venue: Lorentz Center@Online
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Understanding gravity in the framework of quantum mechanics is one of the significant challenges in modern physics. Along this line, a primary question is whether gravity is a quantum entity subject to quantum mechanical rules. Despite the purported weakness of gravity, the phase evolution induced by the gravitational interaction of two-micron size test masses in adjacent matter-wave interferometers can detectably entangle them via the exchange of graviton mediation even when they are placed far enough apart to keep Casimir-Polder forces at bay.

This prescription for witnessing entanglement certifies gravity as a coherent quantum mediator through simple correlation measurements between two spins: one embedded in each test mass known as a QGEM (quantum gravity induced entanglement of masses) protocol. This workshop will discuss various theoretical and experimental challenges to conceive the QGEM protocol in a lab that will require an unprecedented level of accuracy in witnessing the quantum nature of one of nature’s weakest interactions.

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Program

Workshop Program:
- Program.pdf (last update: 2022-04-01)

Participants

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Workshop files

Scientific Report

poster

Scientific organizers:

Anupam Mazumdar, University of Groningen

Myungshik Kim, Imperial College

Martin Plenio, Ulm University

Sougato Bose, University College London

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Workshop coordinator

Linda Zwinkels

+31 71 527 5659

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