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

机译:基于二维动力学三角剖分的Ising模型的绝对零临界

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We reconsider the criticality of the Ising model on two-dimensional dynamical triangulations based on the N × 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 of neither pure gravity nor gravity coupled to conformal matter with central charge being 1 / 2 .
机译:通过在电位中引入循环计数参数和线性项,我们重新考虑了基于N×N Hermitian两矩阵模型的二维动态三角剖分中Ising模型的重要性。我们证明,即使Ising模型是经典的,在大N极限中,通过调整循环计数参数也可以使临界温度达到绝对零,并且相应的连续论也证明既不是纯重力也不是重力的量化理论。与共形物质耦合,中心电荷为1/2。

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