Physicists recorded the flowing sound of a ‘perfect’ fluid for the first time

Physicists recorded the flowing sound of a ‘perfect’ fluid for the first time

For the first time, physicists have recorded sound waves moving through a perfect fluid with the lowest possible viscosity, as permitted by the laws of quantum mechanics, an ascending glissando of the frequencies at which the fluid resonates.

This research can help us to understand some of the most extreme conditions in the Universe – the interiors of ultradense neutron stars, and the quark-gluon plasma ‘soup’ that filled the Universe in the years just after the Big Bang.

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