Journal of the Korean Mathematical Society (대한수학회지)

Korean Mathematical Society (대한수학회)
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VARIATIONAL PRINCIPLE FOR QUANTUM UNBOUNDED SPIN SYSTEMS

  • Choi, S.D. (Department of Physics Kyungpook National University) ;
  • Jo, S.G. (Department of Physics Kyungpook National University) ;
  • Kim, H.I. (Kyungpook National University) ;
  • Lee, H.H. (Department of Mathematics Kyungpook National University) ;
  • Yoo, H.J. (Department of Mathematics Kyungpook National University)
  • Published : 2000.07.01
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Abstract

We study the variational principle for quantum unbounded spin systems interacting via superstable and regular interactions. We show that the (weak) KMS state constructed via the thermodynamic limit of finite volume Green's functions satisfies the Gibbs variational equality.

Keywords

References

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