arXiv:2308.01279·v1·Quantum Physics
Quantum Algorithms for the computation of quantum thermal averages at work
Riccardo Aiudi · Claudio Bonanno · Claudio Bonati · Giuseppe Clemente · Massimo D'Elia · Lorenzo Maio · Davide Rossini · Salvatore Tirone · Kevin Zambello
Abstract
Recently, a variety of quantum algorithms have been devised to estimate thermal averages on a genuine quantum processor. In this paper, we consider the practical implementation of the so-called Quantum-Quantum Metropolis algorithm. As a testbed for this purpose, we simulate a basic system of three frustrated quantum spins and discuss its systematics, also in comparison with the Quantum Metropolis Sampling algorithm.
Comments: 12 pages, 9 figures