From the Article

>"We found a quantum system that exhibits key properties of a gravitational wormhole yet is sufficiently small to implement on today's quantum hardware," U.S. Department of Energy Office of Science research program Quantum Communication Channels for Fundamental Physics (QCCFP) principal investigator Maria Spiropulu, said in a statement(opens in new tab). "This work constitutes a step toward a larger program of testing quantum gravity physics using a quantum computer."
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>Co-author Samantha Davis, a graduate student at Caltech, said in the statement that it took "a really long time to arrive at the results," and that the team was surprised by the outcome that suggests that wormhole-like behavior can be explained from the perspective of both quantum physics and general relativity.