Integrated photonic quantum technologies

By Jianwei Wang, Fabio Sciarrino, Anthony Laing, M. G. Thompson. Nature Photonics, 2019

1,408 citations recorded by the source corpus.

Quantum technologies comprise an emerging class of devices capable of controlling superposition and entanglement of quantum states of light or matter, to realize fundamental performance advantages over ordinary classical machines. The technology of integrated quantum photonics has enabled the generation, processing and detection of quantum states of light at a steadily increasing scale and level of complexity, progressing from few-component circuitry occupying centimetre-scale footprints and operating on two photons, to programmable devices approaching 1,000 components occupying millimetre-scale footprints with integrated generation of multiphoton states. This Review summarizes the advances in integrated photonic quantum technologies and its demonstrated applications, including quantum communications, simulations of quantum chemical and physical systems, sampling algorithms, and linear-optic quantum information processing. This Review covers recent progress in integrated quantum photonics (IQP) technologies and their applications. The challenges and opportunities of realizing large-scale, monolithic IQP circuits for future quantum applications are discussed.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/54bd6cb20d869e39dc072aaaa3b1bc03beab9bb3

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Citations in the corpus

Hybrid integrated quantum photonic circuits (2020, methodology): “Fabrication approaches for hybrid quantum photonic integrated circuits We now discuss three important approaches for hybrid integration, highlighting their advantages and technological challenges: (1) wafer bonding, (2) transfer printing and (3) pick and place.”
Advances in high-dimensional quantum entanglement (2019, background): “Scaling integrated optics to more modes, and in particular, multi-photon generation on-chip will be essential for path-encoding schemes[212].”
Quantum circuits with many photons on a programmable nanophotonic chip (2021, methodology): “Combined with rapid advancements in photonic chip fabrication [25], such demonstrations coincide with new optimism towards pho-”
2022 Roadmap on integrated quantum photonics (2021, methodology): “As an example, the timeline in figure 1 illustrates this rapid progression from few-component circuits enabling two-photon quantum interference in 2008 [5] to a decade later with devices combining more than 650 components capable of arbitrary and programmable two-qubit operations [6], enabling advan”
Deep learning in nano-photonics: inverse design and beyond (2020, background): “Those nano-scale optical effects can be exploited for a broad variety of applications, for instance in integrated quantum optics [6], for meta-materials [7] and in this context specifically for metasurfaces like flat lenses [8].”