Key Einstein principle survives quantum test
Equivalence of gravity, acceleration applies even for atoms in superposition of energy states
![warping space](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/04/042617_EC_quantum-equivalence_main_FREE.jpg?fit=860%2C460&ssl=1)
EINSTEIN ENDURES According to Einstein’s general theory of relativity, massive objects warp space (illustrated above), producing gravitational attraction. Scientists don’t understand how general relativity interfaces with quantum mechanics, but a pillar of general relativity, the equivalence principle, has withstood a new quantum test.
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