Home Energy A Mix of Nanomaterials Leads to a New Quantum Photonic Circuit Architecture

A Mix of Nanomaterials Leads to a New Quantum Photonic Circuit Architecture

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Scientists at the National Institute of Standards and Technology (NIST) have developed an underlying architecture for a new class of quantum photonic circuits—chip-based devices that leverage the quantum properties of light to process and communicate information.

In research described in the journal Nature Communications, the NIST researchers and their collaborators in China and the UK developed a class of devices that are composed of networks of low-loss waveguides and single-photon sources, all on a single chip. The resulting quantum circuit architecture could have an impact on photonic quantum computing and simulation, as well as metrology and communications.

Operating the device consists of producing streams of single photons, launching them into a network of waveguides and beamsplitters in which they are allowed to interfere with each other, and then detecting them at the network’s outputs.