Exactly Solvable Model of a Superconducting to Rotational Phase Transition

@article{Rowe1998ExactlySM,
  title={Exactly Solvable Model of a Superconducting to Rotational Phase Transition},
  author={David J. Rowe and Chairul Bahri and Wasantha Wijesundera},
  journal={Physical Review Letters},
  year={1998},
  volume={80},
  pages={4394-4397}
}
We consider a many-fermion model which exhibits a transition from a superconducting to a rotational phase with variation of a parameter in its Hamiltonian. The model has analytical solutions in its two limits due to the presence of dynamical symmetries. However, the symmetries are basically incompatible with one another; no simple solution exists in intermediate situations. Exact (numerical) solutions are possible and enable one to study the behavior of competing but incompatible symmetries and… 
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