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Pair correlations and the condensate fraction in superfluid 4 He
Author(s) -
Sears V. F.,
Svensson E. C.
Publication year - 2009
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560180873
Subject(s) - superfluidity , fraction (chemistry) , physics , range (aeronautics) , inelastic neutron scattering , neutron scattering , condensed matter physics , scattering , chemistry , quantum mechanics , materials science , organic chemistry , composite material
The condensate fraction n 0 in superfluid 4 He is determined at seven temperatures in the range 1.00 ≤ T ≤ 2.15 K by analyzing new and highly accurate pair‐correlation functions in terms of the model of Hyland, Rowlands, and Cummings. The results are in good agreement with values of n 0 obtained from a very recent neutron inelastic scattering study and with the best theoretical estimates of n 0 at T = 0