Fig. 6
From: Detecting the purely imaginary Fisher zeros of an Ising spin system on a quantum computer
The square of the modulus of the partition function (13) is plotted as a function of \(J\alpha\) in the case of \(h=J\). The solid lines represent the theoretical predictions, while the dots depict the results obtained on the ibm-lagos quantum computer. The purely imaginary Fisher zeros correspond to the points at \(J\alpha =\pi\), \(3\pi\), \(5\pi\), and \(7\pi\). Here we divided the partition function by 8.
