A new kind of time crystal can exist at room temperature, making it all the more relevant for the real world.
If you’re wondering what a time crystal is , most physicists also had the same question until pretty recently. It’s a form of matter thatTo wrap your head around this wonky chapter of quantum mechanics, think of a crystalized structure like a piece of salt or a diamond. The atoms deep within those objects are arranged in repeating, predictable patterns in space.
As a result, physicists also call these formations “space crystals.” But just as the three axes of space form different dimensions, time also makes a dimension. Physicists began to wonder if they could find a crystal—or something like it—whose atoms formed repeating patterns in time.Over the past few years, labs across the world have been working out what a time crystal might look like. Some started with a space crystal whose atoms were arranged one way.
And just as a space crystal can be big or small in space, depending on how much the pattern repeats itself, a time crystal can be long or short, depending on the duration of each state. Time crystals so far have tended to be short or “small.” That left room for growth. So, this global group of physicists set about engineering a time crystal that circumvented some of these problems to, hopefully, work in the real world. Their device consists of a crystal about 2 millimeters across, fashioned from fluorine and magnesium atoms. It uses a pair of lasers to move between patterns, and can do so at 70 degrees Fahrenheit .
Once the team finished fine-tuning their systems, they found that they could create a variety of time crystals “bigger” than any seen before. “The lifetime of the generated discrete time crystals in our system is, in principle, infinite,”
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