Ultrafast nonequilibrium dynamics of rotons in superfluid helium.
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DOI: 10.1073/pnas.2303231120
Abstract: Short-time dynamics of superfluids far from equilibrium remains largely unknown, despite its importance for key processes in these systems. Here, we describe a method for locally perturbing the density of superfluid helium via the excitation… read more here.
Keywords: ultrafast nonequilibrium; superfluid helium; nonequilibrium dynamics; roton pairs ... See more keywords