Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Hybrid quantum classical graph neural networks for particle track reconstruction
AU - Tüysüz, C.
AU - Rieger, C.
AU - Novotny, K.
AU - Demirköz, B.
AU - Dobos, D.
AU - Potamianos, K.
AU - Vallecorsa, S.
AU - Vlimant, J.-R.
AU - Forster, R.
PY - 2021/11/28
Y1 - 2021/11/28
N2 - The Large Hadron Collider (LHC) at the European Organisation for Nuclear Research (CERN) will be upgraded to further increase the instantaneous rate of particle collisions (luminosity) and become the High Luminosity LHC (HL-LHC). This increase in luminosity will significantly increase the number of particles interacting with the detector. The interaction of particles with a detector is referred to as “hit”. The HL-LHC will yield many more detector hits, which will pose a combinatorial challenge by using reconstruction algorithms to determine particle trajectories from those hits. This work explores the possibility of converting a novel graph neural network model, that can optimally take into account the sparse nature of the tracking detector data and their complex geometry, to a hybrid quantum-classical graph neural network that benefits from using variational quantum layers. We show that this hybrid model can perform similar to the classical approach. Also, we explore parametrized quantum circuits (PQC) with different expressibility and entangling capacities, and compare their training performance in order to quantify the expected benefits. These results can be used to build a future road map to further develop circuit-based hybrid quantum-classical graph neural networks.
AB - The Large Hadron Collider (LHC) at the European Organisation for Nuclear Research (CERN) will be upgraded to further increase the instantaneous rate of particle collisions (luminosity) and become the High Luminosity LHC (HL-LHC). This increase in luminosity will significantly increase the number of particles interacting with the detector. The interaction of particles with a detector is referred to as “hit”. The HL-LHC will yield many more detector hits, which will pose a combinatorial challenge by using reconstruction algorithms to determine particle trajectories from those hits. This work explores the possibility of converting a novel graph neural network model, that can optimally take into account the sparse nature of the tracking detector data and their complex geometry, to a hybrid quantum-classical graph neural network that benefits from using variational quantum layers. We show that this hybrid model can perform similar to the classical approach. Also, we explore parametrized quantum circuits (PQC) with different expressibility and entangling capacities, and compare their training performance in order to quantify the expected benefits. These results can be used to build a future road map to further develop circuit-based hybrid quantum-classical graph neural networks.
KW - Particle track reconstruction
KW - Quantum graph neural networks
KW - Quantum machine learning
KW - Colliding beam accelerators
KW - Graph neural networks
KW - High energy physics
KW - Machine learning
KW - Multilayer neural networks
KW - Large Hadron Collider
KW - Large-hadron colliders
KW - Particle tracks
KW - Quantum graph
KW - Quantum graph neural network
KW - Quantum-classical
KW - Track reconstruction
KW - Luminance
U2 - 10.1007/s42484-021-00055-9
DO - 10.1007/s42484-021-00055-9
M3 - Journal article
VL - 3
JO - Quantum Machine Intelligence
JF - Quantum Machine Intelligence
SN - 2524-4906
IS - 2
M1 - 29
ER -