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Thermal nucleation of cavities in liquid helium at negative pressures
Guilleumas, Montserrat; Pi Pericay, Martí; Barranco Gómez, Manuel; Navarro Faus, Jesús; Solís, M. A.
Universitat de Barcelona
We have investigated the nucleation rate at which cavities are formed in 4He and 3He at negative pressures due to thermal fluctuations. To this end, we have used a density functional that reproduces the He liquid-gas interface along the coexistence line. The inclusion of thermal effects in the calculation of the barrier against nucleation results in a sizable decrease of the absolute value of the tensile strength above 1.5 K.
04-05-2010
Cavitació
Heli líquid
Temperatures baixes
Fluctuacions (Física)
Cavitation
Liquid helium
Low temperatures
Fluctuations (Physics)
(c) The American Physical Society, 1993
Artículo
The American Physical Society
         

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