Deep Quantum Circuit Simulations of Low-Energy Nuclear States

Abstract

Numerical simulation is an important method for verifying the quantum circuits used to simulate low-energy nuclear states. However, real-world applications of quantum computing for nuclear theory often generate deep quantum circuits that place demanding memory and processing requirements on conventional simulation methods. Here, we present advances in high-performance numerical simulations of deep quantum circuits to efficiently verify the accuracy of low-energy nuclear physics applications. Our approach employs several novel methods for accelerating the numerical simulation including 1- and 2-qubit gate fusion techniques as well as management of simulated mid-circuit measurements to verify state preparation circuits. We test these methods across a variety of high-performance computing systems and our results show that circuits up to 21 qubits and more than 115,000,000 gates can be efficiently simulated.

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• Quantum Magic and Multi-Partite Entanglement in the Structure of Nuclei
• A Quantum Annealing Protocol to Solve the Nuclear Shell Model
• Simplified projection on total spin zero for state preparation on quantum computers
• A low-circuit-depth quantum computing approach to the nuclear shell model