Fig. 7
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 (16) as a function of \(J\alpha\). The solid lines represent the theoretical predictions, and the dots depict the results obtained on the ibm-lagos quantum computer. Purely imaginary Fisher zeros correspond to the points at \(J\alpha =2\pi\) and \(6\pi\). Here we divided the partition function by \(2^7\).
