Figure 5
From: Exploring finite temperature properties of materials with quantum computers
Thermal energy data from canonical TPQ states, as a function of inverse temperature \(\beta \), of a 3-qubit 1D Heisenberg model executed on both a noiseless quantum simulator and on IBM’s “ibmq\(\_\)brooklyn” quantum computer. The QITE algorithm was performed with 10 imaginary time-steps for each value of \(\beta \). Raw hardware data is presented in comparison to results after readout error mitigation (EM) and zero-noise extrapolation (ZNE) have been applied.
