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Quantising a perfect fluid

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If you have a question about this talk, please contact Ciaran Hughes.

A perfect fluid is one of the simplest fluid systems imaginable, and it can be described classically by an effective field theory. However, quantising this theory – i.e. putting said action in a path integral and computing correlators – has proved difficult, as, owing to the unrestrained excitations of transverse modes, correlators diverge at late times. After reviewing the above, I will show how to extract useful information from the path integral, providing evidence that a “quantum perfect fluid” is a consistent theory (with interesting behaviour).

This talk is part of the HEP/GR Informal Seminar Series for Graduate Students series.

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