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Article Dans Une Revue Journal of Low Temperature Physics Année : 2023

Measurement of the Equation of State of Superfluid Helium-4 at Negative Pressure

Résumé

We report a measurement of the equation of state of superfluid 4He (T ∼1 K) at negative pressure. A stimulated Brillouin gain spectrometer, used together with an optical interferometer, allows us to probe simultaneously both the compressibility and the density of acoustically driven metastable states of the liquid. In the pressure range 0 >P >-1 bar, the measured equation of state is in agreement with available theories.
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Dates et versions

hal-03955640 , version 1 (24-02-2023)

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Lionel Djadaojee, Cédric Parisi, Camille Noûs, Jules Grucker. Measurement of the Equation of State of Superfluid Helium-4 at Negative Pressure. Journal of Low Temperature Physics, 2023, ⟨10.1007/s10909-022-02936-0⟩. ⟨hal-03955640⟩
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