Photonic Quantum Computer

Yong‐Su Kim, Heedeuk Shin, Joonsuk Huh

Aditya Ranjan, Tirthak Patel, Harshitta Gandhi +3 more

Among the various types of quantum computers, photonic quantum computers have shown great potential due to their high degree of scalability. However, the development of photonic quantum computers is still in its infancy, and the characterization of their performance is of critical importance to guide further improvements. In this work, we present the first characterization and insights derived from Xanadu's X8 photonic quantum computer. Our work represents an important step toward the development of practical and scalable photonic quantum computers.

Chuck Easttom

Yen-Hung Chen, Chien‐Hung Cho, Wei Yuan +3 more

It has been demonstrated that the photonic quantum computer is significantly faster than conventional supercomputers and that the practical quantum computer is one of the most promising ways to solve real-life problems. In this article, the development of photonic quantum computers and their potential applications are summarized, and three types of photonic quantum computing machines are detailed, including photonic quantum machines, coherent Ising machines (CIMs), and programmable photonic quantum computers. The photonic quantum industry, together with some start-up companies in associated application fields, are profiled. Compared with superconducting and ion traps, photonic quantum computing has its own advantages and disadvantages. It will be seen whether photonic quantum computer companies can capture a share of the future quantum computing market. The major challenges lie in the scalability of photonic systems and their adaptation and integration with silicon (Si) systems.

Rohit Chaurasiya, Devanshi Arora

M. AbuGhanem

In the pursuit of scalable and fault-tolerant quantum computing architectures, photonic-based quantum computers have emerged as a leading frontier. This article provides a comprehensive overview of advancements in photonic quantum computing, developed by leading industry players, examining current performance, architectural designs, and strategies for developing large-scale, fault-tolerant photonic quantum computers. It also highlights recent groundbreaking experiments that leverage the unique advantages of photonic technologies, underscoring their transformative potential. This review captures a pivotal moment of photonic quantum computing in the noisy intermediate-scale quantum (NISQ) era, offering insights into how photonic quantum computers might reshape the future of quantum computing.