Quantum computing is currently hindered by hardware noise. We present a freestyle superconducting pulse optimization method, incorporating two-qubit channels, which enhances flexibility, execution speed, and noise resilience. A minimal 0.22 ns pulse is shown to determine the H2 groundstate to within chemical accuracy upon real-hardware, approaching the quantum speed limit. Similarly, a pulse significantly shorter than circuit-based counterparts is found for the LiH molecule, attaining state-of-the-art accuracy. The method is general and can potentially accelerate performance across various quantum computing components and hardware.
@article{arxiv.2403.17789,
title = {Molecular groundstate determination via short pulses on superconducting qubits},
author = {Noga Entin and Mor M. Roses and Reuven Cohen and Nadav Katz and Adi Makmal},
journal= {arXiv preprint arXiv:2403.17789},
year = {2024}
}