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Strong-Coupling Effects in "Dirty" Superfluid $^3He$

G. Baramidze·G. Kharadze
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Abstract

The contribution of the strong-coupling effects to the free energy of the "dirty" superfluid $^3He$ is estimated using a simple model. It is shown that the strong-coupling effects are less susceptible to the quasiparticle scattering events in comparison to the weak-coupling counterpart. This supports the conclusion about stabilization of the $B$-phase in aerogel environment at pressures where the $A$-phase takes over in bulk superfluid $^3He$, in accordance with recent experimental observations in zero magnetic field.

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G. Baramidze, G. Kharadze. 2002-03-18. Strong-Coupling Effects in "Dirty" Superfluid $^3He$. https://doi.org/10.1088/0953-8984%2F14%2F32%2F306

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