Grid-based qubit encoding with split-operator evolution reduces Hamiltonian scaling to O(2^n) and is benchmarked on IBM and IonQ hardware for 2-5 qubits, showing qualitative agreement for small sizes but increasing deviations at larger counts.
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On Performance and Limitations of NISQ Hardware for Simulations of Quantum Wave Packet Dynamics
Grid-based qubit encoding with split-operator evolution reduces Hamiltonian scaling to O(2^n) and is benchmarked on IBM and IonQ hardware for 2-5 qubits, showing qualitative agreement for small sizes but increasing deviations at larger counts.