Q&A: Searching for the Quantumness of Gravity


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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