Dresden 2026 – scientific programme
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QI: Fachverband Quanteninformation
QI 3: Quantum Simulation
QI 3.6: Talk
Monday, March 9, 2026, 16:15–16:30, BEY/0137
Hamiltonian simulation with explicit formulas for Digital-Analog Quantum Computing — Mikel Garcia de Andoin1,2, Thorge Müller3, and •Gonzalo Camacho3 — 1University of the Basque Country UPV/EHU, Leioa, Spain — 2EHU Quantum Center, Leioa, Spain — 3Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln, Germany
In Hamiltonian simulation, modifying a given source Hamiltonian is often required to engineer a desired target Hamiltonian. In this work, we provide an exact solution for the problem of expressing arbitrary target two-body Hamiltonians as the sum of local unitary transformations of an arbitrary source Ising Hamiltonian, with the total number of required terms being at most quadratic in system size. This allows us to design an efficient digital-analog compilation protocol for Hamiltonian simulation that avoids employing numerical optimization over a large parameter space, minimizes computational resources and allows for further scaling.
Keywords: Hamiltonian engineering; Hamiltonian simulation; Digital-Analog Quantum Computing; Quantum circuit compilation