Physics - Saturday Physics for Everyone
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Saturday Physics for Everyone: Ultracold Physics: Creating Quantum Matter at the Coldest Temperatures in the Universe
The coldest objects in the universe are gases of atoms that are trapped and cooled using lasers in labs located on Earth. I will talk about how we achieve these ultra-low temperatures, just trillionths of a degree above absolute zero. In this ultra-cold regime, the quantum nature of matter is inescapable, and the atoms behave like waves. I will discuss how we use these quantum matter waves to study one of the most important outstanding questions in physics: how new phenomena like superfluidity emerge from collections of interacting quantum particles.