Review of Distributed Quantum Computing. From single QPU to High Performance Quantum Computing

TL;DR

This paper provides a comprehensive survey of distributed quantum computing, covering its principles, achievements, challenges, and future directions, highlighting its potential to enhance quantum computational power beyond single QPU systems.

Contribution

It offers an exhaustive overview of the current state, challenges, and promising research directions in distributed quantum computing for both experts and newcomers.

Findings

Distributed quantum computing leverages quantum communication and entanglement.

It addresses limitations of classical computing with quantum approaches.

The survey identifies key challenges and future research paths.

Abstract

The emerging field of quantum computing has shown it might change how we process information by using the unique principles of quantum mechanics. As researchers continue to push the boundaries of quantum technologies to unprecedented levels, distributed quantum computing raises as an obvious path to explore with the aim of boosting the computational power of current quantum systems. This paper presents a comprehensive survey of the current state of the art in the distributed quantum computing field, exploring its foundational principles, landscape of achievements, challenges, and promising directions for further research. From quantum communication protocols to entanglement-based distributed algorithms, each aspect contributes to the mosaic of distributed quantum computing, making it an attractive approach to address the limitations of classical computing. Our objective is to provide an exhaustive overview for experienced researchers and field newcomers.