Multi-Photon Quantum Information Science and Technology in Integrated Optics

Siamak Dadras

Quantum information science and technology (QIST) harnesses a burgeoning class of photonic devices, enabling the manipulation of quantum states in both light and matter for superior performance compared to classical technologies. While early-stage demonstrations in various areas of QIST have predominantly employed bulk-optic components, the imperative for integrated photonic devices becomes evident in the quest for scalability. This transition is crucial for substantial reductions in SWaP-C (Size, Weight, Power, and Cost) and is seen as essential for achieving the quantum advantage. This paper provides an overview of the evolution of classical and quantum light sources from bulk-optics to mini-bulk-optics to integrated photonics, examining their potential for scalable QIST deployments. While these components can greatly advance quantum computing, communication, sensing, and metrology, they also have readily shown promise in numerous classical technologies such as optical processors, LIDAR, and optical communications. This indicates the mutual dependence of QIST and integrated photonics for growth and fruition.

S. Ya. Kilin

Alberto Politi, Jonathan C. F. Matthews, Anthony Laing +11 more

Quantum technologies based on photons will likely require integrated optics architectures for improved performance, miniaturization and scalability. We demonstrate high-fidelity silica-on-silicon integrated optical realizations of key quantum photonic circuits.

Djeylan Aktas, Bruno Fedrici, Florian Kaiser +10 more

Jeremy L. O’Brien

(100 Word Limit): Quantum information science promises profoundly disruptive information and communication technologies. Photons are ideal carriers of quantum information: Their low noise, high speed transmission, and ease of manipulation at the single photon level make them indispensable for quantum communication, which offers security based on the laws of physics, quantum metrology, which promises the ultimate precision measurements, and quantum information processing, which promises exponentially greater computational power for particular tasks. Recently integrated optical devices have been applied to these technologies. We give an overview of quantum technologies and progress towards their realisation in integrated optics. Presenter Bio (100 Word Limit): O’Brien is director of the Centre for Quantum Photonics, University of Bristol. His Ph.D. from the University of New South Wales in 2002 was for experimental work on correlated and confined electrons in organic conductors, superconductors and semiconductor nanostructures, and progress towards silicon quantum computing. At the University of Queensland (2001-2006) he worked on quantum optics and quantum information science with photons. CQP’s efforts are focused on the fundamental and applied quantum mechanics at the heart of quantum information science and technology, from prototypes for scalable quantum computing to quantum communication, and quantum metrology.