量子处理器上无无序局域化的观测

Observation of disorder- free localization using a (2+1)D lattice gauge theory on a quantum processor Google Quantum AI and Collaborators† Disorder- induced phenomena in quantum many- body systems pose a challenge for analytical and numerical approaches at relevant time and system scales. To reduce the cost of disorder sampling, we investigated quantum circuits initialized in states that form tunable superpositions over all disorder configurations, which in lattice gauge theories can be interpreted as superpositions over gauge sectors. On the experimentally accessible timescales, we observed localization in the absence of disorder in one and two dimensions: Perturbations failed to diffuse despite fully disorder- free evolution and initial states. …