Uchicago scientists discover a new quantum twist

Scientists announced the first evidence for “quantum superchemistry” – a phenomenon where particles in the same quantum state undergo collective accelerated reactions. Above, study co-authors Zhendong Zhang (at left) and Prof. Cheng Chin in the laboratory. Credit: John Zich.

Have you ever heard about the mysterious world of quantum mechanics? It’s like the hidden realm of magic behind everything we know!

Scientists have just uncovered a new, exciting twist in this realm, which they’re calling “quantum superchemistry.” Let’s break this down.

Imagine if you were dancing at a party. Usually, everyone does their own dance moves, right?

Now, think if everyone started dancing in complete sync, doing the exact same moves at the same time.

That’s what these particles are doing in this new discovery. When certain particles are super cold, almost as cold as possible, they start dancing together in perfect harmony.

Scientists at the University of Chicago have seen this amazing dance for the first time. They found out that when these particles (in this case, cesium atoms) dance together in the world of quantum, they can quickly join up to form pairs, which we call molecules.

And the fun part? The more dancing particles, the quicker they form these pairs. This is different from what happens in our normal world, where each particle decides on its own whether to join up or not.

Professor Cheng Chin, who led the research, said that this discovery is like a dream come true for scientists. They had guessed this could happen, but seeing it with their own eyes was something else!

To make this discovery, Professor Chin and his team had to cool these particles to an extremely low temperature.

Think of the coldest thing you can – it’s even colder than that! Then, they watched these cold particles closely to see how they reacted. What was really surprising was that sometimes three particles would come together, two would pair up, and the third would just watch.

It’s like if three people were dancing, two started dancing together, and the third was just clapping along. The third one plays a part even if it’s not in the main action.

Why is this discovery so cool (apart from the super cold temperatures)? Well, when we understand how particles dance and join together in the quantum world, we can use this knowledge in lots of ways.

Some scientists think we can use these dancing molecules in super-powerful computers of the future called quantum computers. Others believe we might uncover more secrets of the universe by studying them.

The team is now excited to see if bigger and more complex groups of particles can also dance in this special quantum way.

The future is full of possibilities, and the dance floor of the quantum world is just getting started!

Citation: “Many-body chemical reactions in a quantum degenerate gas.” Zhang, Nagata, Yao, and Chin, Nature Physics, July 24, 2023.

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Source: University of Chicago.