Ground State of 1D Bosons with Delta Interaction: Link to the BCS Model
The Bethe roots describing the ground-state energy of the integrable one-dimensional (1D) model of interacting bosons with weakly repulsive two-body delta interactions are seen to satisfy the set of Richardson equations appearing in the strong coupling limit of an integrable BCS pairing model. The BCS model describes boson-boson interactions with zero centre of mass momentum of pairs. It follows that the Bethe roots of the weakly interacting boson model are given by the zeros of Laguerre...[Show more]
|Collections||ANU Research Publications|
|Source:||Journal of Physics A: Mathematical and General|
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