Roadmap on Integrated Quantum Photonics
Creators: name: Moody, Galan
name: Sorger, Volker J.
name: Blumenthal, Daniel J.
name: Juodawlkis, Paul W.
name: Loh, William
name: Sorace-Agaskar, Cheryl
name: Jones, Alex E.
name: Balram, Krishna C.
name: Matthews, Jonathan C. F.
name: Laing, Anthony
name: Davanco, Marcelo
name: Chang, Lin
name: Bowers, John E.
name: Quack, Niels
name: Galland, Christophe
name: Aharonovich, Igor
name: Wolff, Martin A.
name: Schuck, Carsten
name: Sinclair, Neil
name: Lončar, Marko
name: Komljenovic, Tin
name: Weld, David
name: Mookherjea, Shayan
name: Buckley, Sonia
name: Radulaski, Marina
name: Reitzenstein, Stephan
name: Pingault, Benjamin
name: Machielse, Bartholomeus
name: Mukhopadhyay, Debsuvra
name: Akimov, Alexey
name: Zheltikov, Aleksei
name: Agarwal, Girish S.
name: Srinivasan, Kartik
name: Lu, Juanjuan
name: Tang, Hong X.
name: Jiang, Wentao
name: McKenna, Timothy P.
name: Safavi-Naeini, Amir H.
name: Steinhauer, Stephan
name: Elshaari, Ali W.
name: Zwiller, Val
name: Davids, Paul S.
name: Martinez, Nicholas
name: Gehl, Michael
name: Chiaverini, John
name: Mehta, Karan K.
name: Romero, Jacquiline
name: Lingaraju, Navin B.
name: Weiner, Andrew M.
name: Peace, Daniel
name: Cernansky, Robert
name: Lobino, Mirko
name: Diamanti, Eleni
name: Vidarte, Luis Trigo
name: Camacho, Ryan M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Integrated photonics is at the heart of many classical technologies, from optical communications to biosensors, LIDAR, and data center fiber interconnects. There is strong evidence that these integrated technologies will play a key role in quantum systems as they grow from few-qubit prototypes to tens of thousands of qubits. The underlying laser and optical quantum technologies, with the required functionality and performance, can only be realized through the integration of these components onto quantum photonic integrated circuits (QPICs) with accompanying electronics. In the last decade, remarkable advances in quantum photonic integration and a dramatic reduction in optical losses have enabled benchtop experiments to be scaled down to prototype chips with improvements in efficiency, robustness, and key performance metrics. The reduction in size, weight, power, and improvement in stability that will be enabled by QPICs will play a key role in increasing the degree of complexity and scale in quantum demonstrations. In the next decade, with sustained research, development, and investment in the quantum photonic ecosystem (i.e. PIC-based platforms, devices and circuits, fabrication and integration processes, packaging, and testing and benchmarking), we will witness the transition from single- and few-function prototypes to the large-scale integration of multi-functional and reconfigurable QPICs that will define how information is processed, stored, transmitted, and utilized for quantum computing, communications, metrology, and sensing. This roadmap highlights the current progress in the field of integrated quantum photonics, future challenges, and advances in science and technology needed to meet these challenges.
description: Submitted to the Journal of Physics: Photonics