On the thermodynamic limit of the Lipkin model

@article{Heiss2006OnTT,
  title={On the thermodynamic limit of the Lipkin model},
  author={WD Heiss},
  journal={Journal of Physics A},
  year={2006},
  volume={39},
  pages={10081-10086}
}
  • WD Heiss
  • Published 2006
  • Physics
  • Journal of Physics A
  • The thermodynamic limit of the Lipkin model is investigated. While the limit turns out to be rather elusive, the analysis gives strong indications that the limit yields two analytically dissociated operators, one for the normal and one for the deformed phase. While the Lipkin Hamiltonian is Hermitian and has a second-order phase transition in finite dimensions (finite particle number), both properties seem to be destroyed in the thermodynamic limit. 
    Chirality of wavefunctions for three coalescing levels
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    • Open Access

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