QuaSiMo: A Composable Library to Program Hybrid Workflows for Quantum Simulation

TL;DR

QuaSiMo is a flexible, object-oriented library that enables the development and customization of hybrid quantum/classical workflows for quantum simulation, validated on commercial quantum hardware.

Contribution

It introduces a composable, object-oriented design scheme for hybrid quantum algorithms, implemented in the QuaSiMo library, facilitating flexible development of quantum simulations.

Findings

Successfully implemented in QCOR language

Validated on IBM and Rigetti quantum processors

Enables synthesis of new hybrid algorithms

Abstract

We present a composable design scheme for the development of hybrid quantum/classical algorithms and workflows for applications of quantum simulation. Our object-oriented approach is based on constructing an expressive set of common data structures and methods that enable programming of a broad variety of complex hybrid quantum simulation applications. The abstract core of our scheme is distilled from the analysis of the current quantum simulation algorithms. Subsequently, it allows a synthesis of new hybrid algorithms and workflows via the extension, specialization, and dynamic customization of the abstract core classes defined by our design. We implement our design scheme using the hardware-agnostic programming language QCOR into the QuaSiMo library. To validate our implementation, we test and show its utility on commercial quantum processors from IBM and Rigetti, running some prototypical quantum simulations.