On the Bose-Einstein Liquid Model for Liquid Helium, II
نویسندگان
چکیده
منابع مشابه
Phonon-roton modes and localized Bose-Einstein condensation in liquid helium under pressure in nanoporous media.
We show, using inelastic neutron scattering, that liquid helium in porous media, two gelsils and MCM-41, supports a phonon-roton mode up to a pressure of 36-37 bars only. Modes having the highest energy ("maxons") broaden and become unobservable at the lowest pressures (p approximately 26 bars) while rotons survive to the highest pressure. By comparing with the superfluid density observed by Ya...
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Electrons and positive ions – complex entities whose structure is determined by the interactions with helium atoms– have proved to be successful probes of superfluidity of liquid helium. Recently developed technique of ion injection [1] makes it possible to generate tangles of quantized vortex lines with negligible large-scale flow. Explosion of electronic bubbles at negative pressures assists ...
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A new approach developed in Ref.1 for investigating the spatial boson correlations at low temperatures is considered in the particular case of the Coulomb interaction potential. This approach is based on integro–differential equations for the radial distribution function and can be used beyond the weak coupling regime. PACS: 05.30.Jp, 67.90.+z Description of the charged Bose liquid, or, in othe...
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S. O. Diallo,1 R. T. Azuah,2,3 D. L. Abernathy,1 R. Rota,4 J. Boronat,4 and H. R. Glyde5 1Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 2NIST Center for Neutron Research, Gaithersburg, Maryland 20742-2115, USA 3Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742-2115, USA 4Departament de Fı́sica...
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We present neutron scattering measurements of the phonon-roton and layer modes of liquid helium films adsorbed in 25-Å pore diameter gelsil as a function of temperature. The goal is to determine whether the well-defined phonon-roton and layer modes observed at low temperature at partial fillings of the porous media persist as well-defined modes at higher temperatures above the superfluid phase,...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1954
ISSN: 0033-068X
DOI: 10.1143/ptp.11.207