Observation of suppressed viscosity in the normal state of He due to superfluid fluctuations.

Evidence of fluctuations in transport have long been predicted in He. They are expected to contribute only within 100μK of T and play a vital role in the theoretical modeling of ordering; they encode details about the Fermi liquid parameters, pairing symmetry, and scattering phase shifts. It is expected that they will be of crucial importance for transport probes of the topologically nontrivial features of superfluid He under strong confinement.