The reasonable and unreasonable effectiveness of hydrodynamics in exotic quantum matter
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Hydrodynamics has a long and glorious history, describing phenomena ranging from flows of water, patterns of weather, to star and galaxy formations. During the last decade, it has also played important and often surprising roles in characterizing various types of exotic quantum matter. In particular, it helped formulating a new class of quantum matter: quantum liquids without quasiparticles. I will briefly review these stories and explain physical reasons
behind these phenomenal new successes of hydrodynamics.
I will then discuss recent theoretical developments in reformulating hydrodynamics based on action principle, which enables one to incorporate hydrodynamic fluctuations systematically and to discover new theories. Applications of the reformulation include a new proof of the second law of thermodynamics, prediction of a signature of quantum many-body chaos, and a new theory of magnetohydrodynamics for chiral matter.
Meeting ID: 161 748 9674
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Raju Venugopalan