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Cavitation in superfluid helium-4 at low temperature |
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| Authors: | H Lambaré P Roche S Balibar HJ Maris OA Andreeva C Guthmann KO Keshishev E Rolley |
| Institution: | (1) Laboratoire de Physique Statistique de l'école Normale Supérieure, associé au CNRS et aux Universités Paris 6 et 7, 24 Rue Lhomond 75231, Paris Cedex 05, France, FR;(2) Department of Physics, Brown University, Providence, RI 02912, USA, US;(3) Academy of Sciences of Russia, Institute for Physical Problems, Kosygin Street 2, Moscow 117334, Russia, RU |
| Abstract: | We have studied the nucleation of bubbles in pure superfluid helium-4 at temperatures down to 65 mK. We have found that the nucleation is a stochastic process, and that at temperatures below 600 mK the nucleation rate is independent of temperature. These results are consistent with the assumption that the nucleation takes place via quantum tunneling. Received: 15 November 1997 / Received in final form: 19 December 1997 / Accepted: 22 January 1998 |
| Keywords: | PACS 67 20 +k Quantum effects on the structure and dynamics of nongenerate fluids (e g normal phase liquid 4He) - 47 55 Bx Cavitation - 64 60 Qb Nucleation |
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