A Falling Quantum Object Just Passed a Century-Old Test of Einstein’s Gravity
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Gravity on a quantum scale: For the first time, physicists have measured the predicted quantum phase of a freely falling object directly. With around 20,000 ultracold rubidium atoms, the observed phase development up to a few percent agrees with the theoretical predictions. This is based on the application of Einstein's equivalence principle to quantum waves in the tested area, without quantizing gravity itself. Oxford [...] The article Einstein…
The result does not unify quantum mechanics and gravity, nor does it show that gravity itself is quantum, but is an important part of this effort.
An atom falls and stops at the same time: A quantum experiment with rubidium atoms tests Einstein's equivalence principle with surprisingly clear results. The article One atom falls and stops at the same time: Physicists test Einstein in the quantum world first appeared on ingenieur.de - Jobbörse und Nachrichtenportal für Ingenieure.
How do quantums behave in free fall? Experts have now tested this with ultra-cold rubidium atoms in the laboratory – by building a kind of quantum freefall tower.
An experiment with ultracold atoms proves that interlinked quantum objects in free fall follow a core concept of the General Theory of Relativity.
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