Scientists have long been fascinated by the behavior of matter at extremely low temperatures, where classical physics no longer applies. At the University of Chicago, researchers have successfully observed quantum effects in chemical reactions within an ultracold quantum gas, shedding new light on the role of quantum mechanics in chemical processes.
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The team's experiments involved cooling a gas of caesium atoms to a mere 11 nanokelvin (nK), at which point the atoms and molecules began to exhibit non-classical behavior. By utilizing a Feshbach resonance to initiate a chemical reaction, the researchers were able to observe quantum entanglement and phase doubling, where two atomic matter waves combined to form a molecular matter wave with twice the phase. These findings have significant implications for our understanding of chemical reactions at the quantum level.
