AltGraph: Redesigning Quantum Circuits Using Generative Graph Models for Efficient Optimization

Collin Beaudoin, Koustubh Phalak, Swaroop Ghosh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Quantum circuit transformation aims to optimize circuits for depth, gate count, and compatibility with Noisy Intermediate Scale Quantum (NISQ) devices that suffer from various error sources. Prior methods use combinations of expert-defined rules and Reinforcement Learning (RL). We introduce AltGraph, a novel approach employing generative graph models to generate functionally equivalent quantum circuits using - specifically, Direct Acyclic Graph (DAG) Variational Autoencoder (D-VAE) variants (GRU and GCN) and Deep Generative Model for Graphs (DeepGMG). AltGraph perturbs the latent space to generate quantum circuits optimized for hardware coupling maps, reducing gate count by 37.55% and circuit depth by 37.75% post-transpiling, with 0.0074 Mean Squared Error (MSE) in the density matrix - outperforming state-of-the-art methods by 2.56%.

Original languageEnglish (US)
Title of host publicationGLSVLSI 2024 - Proceedings of the Great Lakes Symposium on VLSI 2024
PublisherAssociation for Computing Machinery
Pages44-49
Number of pages6
ISBN (Electronic)9798400706059
DOIs
StatePublished - Jun 12 2024
Event34th Great Lakes Symposium on VLSI 2024, GLSVLSI 2024 - Clearwater, United States
Duration: Jun 12 2024Jun 14 2024

Publication series

NameProceedings of the ACM Great Lakes Symposium on VLSI, GLSVLSI

Conference

Conference34th Great Lakes Symposium on VLSI 2024, GLSVLSI 2024
Country/TerritoryUnited States
CityClearwater
Period6/12/246/14/24

All Science Journal Classification (ASJC) codes

  • General Engineering

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