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Effective Theory for Strongly Attractive One-Dimensional Fermions
Effective Theory for Strongly Attractive One-Dimensional Fermions
Abstract I discuss how to effectively describe a one-dimensional system of two-component fermions in the regime of strong attractive particle-particle interactions. First, we examine scattering in the corresponding few-body problem, which can be solved analytically using the Bethe ansatz. This approach enables us to engineer effective interactions between the system's relevant degrees of freedom: fermions…