2026-10-07T22:06:28Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33898246 2026-09-24T14:16:38Z category_30232 category_30229 portal_549 item_type_3 month_year_09_2026

Data supporting “Locally optimized variational evolution for quantum many-body systems” (LOMPS) Carolin Wille (22245139) Quantum information, computation and communication Foundations of quantum mechanics quantum many-body physics tensor network formalism Variational algorithms <p dir="ltr">This research develops a variational approach to quantum many-body dynamics that prioritizes the accurate evolution of local observables rather than the global many-body wave function. The method, called locally optimized matrix-product-state evolution (LOMPS), determines each time step by matching reduced density matrices on finite spatial regions. We benchmark LOMPS against time-evolving block decimation and exact free-fermion calculations, examine its systematic improvement as the optimized region is enlarged, and test its performance across several quantum quenches. We also demonstrate a quantum-classical implementation on Quantinuum H2-2 and IBM Boston Heron r3 hardware. The deposited data support the numerical benchmarks, systematic comparisons, thermalisation results, and quantum-hardware demonstrations reported in the accompanying manuscript.</p> 2026-09-24T14:16:38Z Dataset Dataset 10.5522/04/33898246.v1 https://figshare.com/articles/dataset/Data_supporting_Locally_optimized_variational_evolution_for_quantum_many-body_systems_LOMPS_/33898246 CC BY 4.0