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Researchers have successfully tested Einstein's equivalence principle using a quantum interferometer, confirming that gravity affects falling atoms in a manner consistent with classical predictions. This breakthrough validates the compatibility of general relativity and quantum mechanics at this fundamental level, resolving a long-standing theoretical uncertainty. The experiment demonstrates that even when split into multiple paths, a quantum object's wave function responds to gravity exactly as macroscopic matter does.
Scientists observe Einstein's gravity in the quantum world
An international team including Nobel Prize-winning physicist Professor Sir Roger Penrose has observed a long-predicted effect of gravity on a falling quantum object for the first time. The result shows that a fundamental principle at the heart of Einstein's theory of gravity remains consistent with the behavior of matter in the quantum world. The study, led by Ben-Gurion University of the Negev, the University of Ulm and the University of Oxford, was published today (Sept. 2) in Science Advances.
This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: The atom chip used in the experiment (fabricated at Ben-Gurion University of the Negev). In the experiment the chip was upside-down and the atoms manipulated just under it. Credit: Ben-Gurion University of the Negev An international team including Nobel Prize-winning physicist Professor Sir Roger Penrose has observed a long-predicted effect of gravity on a falling quantum object for the first time. The result shows that a fundamental principle at the heart of Einstein's theory of gravity remains consistent with the behavior of matter in the quantum world. The study, led by Ben-Gurion University of the…
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