Demonstration of system-bath physics on gate-based quantum computer

Autor:	Stadler, Pascal, Lodi, Matteo, Khedri, Andisheh, Reiner, Rolando, Bark, Kirsten, Vogt, Nicolas, Marthaler, Michael, Leppäkangas, Juha
Rok vydání:	2024
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	We demonstrate algorithmic cooling on IBM-Q devices. We utilize inherent qubit noise to simulate the equilibration of an interacting spin system towards its ground state, when coupled to a dissipative auxiliary-spin bath. The steady-state correlations in the system are defined by the system Hamiltonian and are stable as long as the algorithm can be executed. In particular, we demonstrate the relaxation of system spins to ferromagnetic and antiferromagnetic ordering, controlled by the definition of the Hamiltonian. We are able to perform simulated cooling for global systems of up to three system spins and four auxiliary spins. Comment: 17 pages, 12 figures in total: 9 pages main text with 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2404.18828 Zobrazit plný text záznamu View this record from Arxiv