Neural Network-Based Frequency Optimization for Superconducting Quantum Chips

TL;DR

This paper introduces a neural network approach to optimize qubit frequencies in superconducting quantum chips, improving control accuracy and reducing crosstalk, validated through benchmarking and energy computation experiments.

Contribution

It presents a novel neural network-based method for frequency optimization and a crosstalk-aware ansatz for variational quantum algorithms.

Findings

Effective frequency error estimation by neural network

Improved energy accuracy in quantum simulations

Validated through benchmarking experiments

Abstract

Optimizing the frequency configuration of qubits and quantum gates in superconducting quantum chips presents a complex NP-complete optimization challenge. This process is critical for enabling practical control while minimizing decoherence and suppressing significant crosstalk. In this paper, we propose a neural network-based frequency configuration approach. A trained neural network model estimates frequency configuration errors, and an intermediate optimization strategy identifies optimal configurations within localized regions of the chip. The effectiveness of our method is validated through randomized benchmarking and cross-entropy benchmarking. Furthermore, we design a crosstalk-aware hardware-efficient ansatz for variational quantum eigensolvers, achieving improved energy computations.