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Dispersion relation of Landau elementary excitations and thermodynamic properties of superfluid 4He

This neutron scattering work, performed at the ILL pushing the inelastic scattering TOF technique to its limits, has allowed our team to obtain important results on the dispersion relation of the elementary excitations of superfluid 4He, a model quantum fluid.

H. Godfrin, K. Beauvois, A. Sultan, E. Krotscheck, J. Dawidowski, B. Fåk,2 and J. Ollivier
PHYSICAL REVIEW B 103, 104516 (2021) – (Received 15 December 2020; accepted 26 January 2021; published 29 March 2021)

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