Efficient Hamiltonian Simulation: A Utility Scale Perspective for Covalent Inhibitor Reactivity Prediction

• URL: http://arxiv.org/abs/2412.15804v1
• Date: Fri, 20 Dec 2024 11:25:01 GMT
• Title: Efficient Hamiltonian Simulation: A Utility Scale Perspective for Covalent Inhibitor Reactivity Prediction
• Authors: Marek Kowalik, Sam Genway, Vedangi Pathak, Mykola Maksymenko, Simon Martiel, Hamed Mohammadbagherpoor, Richard Padbury, Vladyslav Los, Oleksa Hryniv, Peter Pogány, Phalgun Lolur,
• Abstract summary: In this paper, we demonstrate advancements that expand the size of chemistry problems that can be run on today's quantum systems.<n>We report up to a 29-fold reduction in circuit depth for covalent drug molecules, enabling Hamiltonian dynamics for reactivity predictions.<n>When employed on IBMQ's Heron architecture, we see up to a 16-fold reduction.
• Score: 0.25111276334134786
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum computing applications in the noisy intermediate-scale quantum (NISQ) era demand algorithms capable of generating shallower circuits that are feasible to run on today's quantum systems. This is a challenge, particularly for quantum chemistry applications, considering the inherent complexity of molecular systems. In this paper, we demonstrate advancements that expand the size of chemistry problems that can be run on today's quantum systems by applying hardware-efficient approaches, such as Quantum-Centric Data-Driven Research and Development (QDDRD), optimized algorithms with reduced circuit depth, and execute the experiments with middleware-supported quantum error mitigation. We report up to a 29-fold reduction in circuit depth for covalent drug molecules, enabling Hamiltonian dynamics for reactivity predictions, assuming all-to-all connectivity of quantum hardware. When employed on IBMQ's Heron architecture, we see up to a 16-fold reduction. The overarching impact of this work is that it highlights promising methods that allow researchers to explore the dynamics of commercially relevant chemistry on real quantum hardware via Hamiltonian simulation.

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