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1. chinaXiv:202012.00021 [pdf]

Experimental Observation of Thermal Energies of Helium-4 Superflows

Yu, Yongle; Luo, Hailin
Subjects: Physics >> Condensed Matter: Electronic Structure, Electrical, Magnetic, and Optical Properties

We observed a counter-intuitive remarkable heating phenomenon generated by helium-4 superflows. This phenomenon establishes that superflows carry thermal energies and entropies, which is in contrast to the hypothesis of the two-fluid model. Quantum many-body theory of superfluids provides a natural understanding of the phenomenon.

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