Experimental Quantum End-to-End Learning on a Superconducting Processor

TL;DR

This paper demonstrates the first experimental implementation of quantum end-to-end machine learning on a superconducting processor, achieving high accuracy in digit recognition tasks and showcasing the potential of quantum models for complex real-world applications.

Contribution

It presents the first experimental realization of a gate-free quantum end-to-end learning model on a superconducting quantum processor, highlighting its effectiveness and potential.

Findings

Achieved 98% accuracy on two-digit recognition

Achieved 89% accuracy on four-digit recognition

Demonstrated the feasibility of quantum end-to-end learning on superconducting hardware

Abstract

Machine learning can be substantially powered by a quantum computer owing to its huge Hilbert space and inherent quantum parallelism. In the pursuit of quantum advantages for machine learning with noisy intermediate-scale quantum devices, it was proposed that the learning model can be designed in an end-to-end fashion, i.e., the quantum ansatz is parameterized by directly manipulable control pulses without circuit design and compilation. Such gate-free models are hardware friendly and can fully exploit limited quantum resources. Here, we report the first experimental realization of quantum end-to-end machine learning on a superconducting processor. The trained model can achieve 98% recognition accuracy for two handwritten digits (via two qubits) and 89% for four digits (via three qubits) in the MNIST (Mixed National Institute of Standards and Technology) database. The experimental results exhibit the great potential of quantum end-to-end learning for resolving complex real-world tasks when more qubits are available.