10–13 Oct 2023
Toulouse
Europe/Zurich timezone

Application of Quantum Annealing with Graph Neural Network Preselection in Particle Tracking at LHC

12 Oct 2023, 15:10
25m
Auditorium (Le Village)

Auditorium

Le Village

Plenary Plenary

Speaker

Dr Wai Yuen Chan (University of Tokyo (JP))

Description

Quantum computing techniques have recently gained significant attention in the field. Compared to traditional computing techniques, quantum computing could offer potential advantages for high-energy physics experiments. Particularly in the era of HL-LHC, effectively handling large amounts of data with modest resources is a primary concern. Particle tracking is one of the tasks predicted to be challenging for classical computers in the HL-LHC. Previous studies have demonstrated that quantum annealing (QA), an optimization technique with quantum computer, can achieve particle tracking with an efficiency of over 90%, even in dense environments. To execute the QA process, a Quadratic Unconstrained Binary Optimization (QUBO) object is required. In order to apply the QA technique in particle tracking, hits are pairing up and form a QUBO object. Recent research has implemented and tested a graph neural network (GNN) using simplified samples in the preselection stage of the QA-based tracking algorithm. The current study aims to generalize the dataset and construct a GNN to classify hit pairs within a dense environment. Furthermore, the tracking performance of the standard QA-based tracking algorithm will be compared with that of the GNN-QA tracking algorithm.

Authors

Junichi Tanaka (University of Tokyo (JP)) Koji Terashi (University of Tokyo (JP)) Ryu Sawada (University of Tokyo (JP)) Sanmay Ganguly (University of Tokyo (JP)) Dr Wai Yuen Chan (University of Tokyo (JP))

Presentation materials