Fermi liquid theory of Fermi-Bose mixtures
E. V. Thuneberg, T. H. Virtanen
TL;DR
This paper develops a Fermi-liquid theoretical framework for fermion-boson mixtures, exemplified by 3He-4He systems, providing a new derivation and simplified equations for their low-temperature behavior.
Contribution
It presents a novel derivation of Fermi-liquid theory for fermion-boson mixtures, including a simplified transformation and detailed boundary condition analysis.
Findings
Derived basic equations for Fermi-Bose mixtures
Introduced a simplified form for coupling of components
Discussed boundary conditions in detail
Abstract
We write down the basic equations of Fermi-liquid theory for mixtures of fermions and bosons, an example being 3He-4He mixtures at low temperatures. Basically the theory is identical to the one derived by Khalatnikov, but it is derived in a different way, and includes more discussion. A simplifying transformation of the equations is found where the coupling of the normal and superfluid components appears in a simple form. The boundary conditions are discussed.
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