EPOC: A Novel Pulse Generation Framework Incorporating Advanced Synthesis Techniques for Quantum Circuits

TL;DR

EPOC is a new framework that combines advanced synthesis techniques and circuit partitioning to generate quantum pulses more efficiently, reducing latency significantly compared to previous methods.

Contribution

It introduces the integration of circuit synthesis into quantum optimal control, enabling finer granularity and parallelism for faster pulse generation.

Findings

Achieved 31.74% latency reduction over previous work

Reduced latency by 76.80% compared to gate-based methods

Demonstrated potential for significant performance improvements in quantum circuits

Abstract

In this paper we propose EPOC, an efficient pulse generation framework for quantum circuits that combines ZX-Calculus, circuit partitioning, and circuit synthesis to accelerate pulse generation. Unlike previous works that focus on generating pulses from unitary matrices without exploring equivalent representations, EPOC employs a finer granularity approach by grouping quantum gates and decomposing the resulting unitary matrices into smaller ones using synthesis techniques. This enables increased parallelism and decreased latency in quantum pulses. EPOC also continuously optimizes the circuit by identifying equivalent representations, leading to further reductions in circuit latency while minimizing the computational overhead associated with quantum optimal control. We introduce circuit synthesis into the workflow of quantum optimal control for the first time and achieve a 31.74% reduction in latency compared to previous work and a 76.80% reduction compared to the gate-based method for creating pulses. The approach demonstrates the potential for significant performance improvements in quantum circuits while minimizing computational overhead.