Abstract
We consider the equilibrium dynamics of a system consisting of a spin interacting with an ideal Fermi gas on the lattice ℤΝ, Ν⩾3. We present two examples: when this system is unitarily equivalent to an ideal Fermi gas or to a spin in an ideal Fermi gas without interaction between them.
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Aizenstadt, V.V., Malyshev, V.A. Spin interaction with an ideal Fermi gas. J Stat Phys 48, 51–68 (1987). https://doi.org/10.1007/BF01010399
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DOI: https://doi.org/10.1007/BF01010399