Q&A: Searching for the Quantumness of Gravity

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Cold atoms are an exceptional platform to engineer and control quantum states. They could be used to build networks of fermions that interact with each other in a specific way, realizing the so-called Sachdev-Ye-Kitaev model. As a version of AdS/CFT, this system would be equivalent to a universe with quantum gravity. There are no conceptual barriers for these experiments, but they pose serious engineering challenges. Still, I am confident that researchers will be carrying out these experiments within a decade.

Know a physicist with a knack for explaining their research to others? Write to physics@aps.org. All interviews are edited for brevity and clarity.



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