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Condensed-matter physics

Relaxation after a tight squeeze

Are the rules that determine relaxation to equilibrium the same in the classical and quantum worlds? Recent experiments supported the idea that they are — but an investigation with ultracold atoms now contradicts that.

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Altman, E., Demler, E. Relaxation after a tight squeeze. Nature 449, 296–297 (2007). https://doi.org/10.1038/449296a

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