We show that the value of the ratio δβ5/δβ24 deduced from specific heat experiments is extremely sensitive to the coefficient of the quadratic term in the Ginzburg-Landau functional. A strong coupling calculation of this coefficient implies that the experimental value of δβ5/δβ24 is more than three times larger than previously believed.
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This work was supported in part by the National Science Foundation through Grant DMR7826530.
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Rainer, D., Serene, J.W. Relations between specific heat discontinuities and Ginzburg-Landau parameters for superfluid 3He. J Low Temp Phys 38, 601–604 (1980). https://doi.org/10.1007/BF00115490
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DOI: https://doi.org/10.1007/BF00115490