One-dimensional multicomponent fermions with δ-function interaction in strong- and weak-coupling limits: κ-component Fermi gas
The Fredholm equations for one-dimensional two-component fermions with repulsive and with attractive δ-function interactions are solved by an asymptotic expansion for strong repulsion, weak repulsion, weak attraction, and strong attraction. Consequently,
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|Source:||Physical Review A: Atomic, Molecular and Optical Physics|
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