## Proceedings of the International School of Physics "Enrico Fermi.", Volume 21N. Zanichelli, 1963 - Nuclear physics |

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### Contents

LEZIONI | 1 |

CHESTER Superfluidity 51 G V CHESTER Superfluidity | 93 |

with application to liquid Helium II | 147 |

Copyright | |

5 other sections not shown

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appears approximation associated assumed atoms becomes calculation coefficient condition consider constant corresponding critical velocity curve defined density dependence derivation described detailed determined direct discussion distribution effect energy equation equilibrium excitations existence expected experimental experiments expression fact Fermi FEYNMAN field flow fluid forces given gives heat ideal important increase interaction lambda point LANDAU length liquid helium mass mean measurements mechanics method microscopic momentum motion moving normal observed obtained operator particle perturbation phase phonon Phys physical positive possible potential present pressure problem properties quantized quantum mechanical quasi-particle region relation represents rotation roton scattering seen shown single solid solution sound specific spectrum suggested superfluid surface temperature theoretical theory thermal transition tube turbulence vortex line wave function zero