Criticality at absolute zero from Ising model on two-dimensional dynamical triangulations

  title={Criticality at absolute zero from Ising model on two-dimensional dynamical triangulations},
  author={Yuki Sato and Tomo Tanaka},
  journal={Physical Review D},
We reconsider the criticality of the Ising model on two-dimensional dynamical triangulations based on the $N\ifmmode\times\else\texttimes\fi{}N$ Hermitian two-matrix model with the introduction of a loop-counting parameter and linear terms in the potential. We show that in the large-$N$ limit even though the Ising model is classical, the critical temperature can reach absolute zero by tuning the loop-counting parameter, and the corresponding continuum theory turns out to be the quantized theory… 

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