Wednesday , July 28 2021

Quantum-optical micro-combs

Quantum-optical micro-combs

An integrated ring resonator circuit that is used to generate quantum optical frequency combs. Credit: University of Technology in Swinburne

Compact quantum devices can be included in laptops and mobile phones, thanks in part to small devices called quantum optical micro-combs.

Quantum optical micro-crests are devices that generate very clear precision light frequencies at the same distance, just like the teeth of a comb. They can allow ultra-fast processes and can be an important component of quantum computer systems.

In a recent article devoted to the development of these devices, Professor David Moss, director of the CMP in Swinburne, describes the progress made in making these devices smaller and portable to be included in the chip.

"These devices will allow an unprecedented level of refinement in the generation of entangled photons on a chip-breakthrough, which I think could speed up the quest for so-called" quantum superiorities "- quantum devices that have the ability to perform functions beyond conventional electronic computers, "says Professor Moss.

A key challenge for quantum science and technology is to develop practical large-scale systems that can be precisely controlled. Quantum optical micro-combs provide a unique, practical and scalable quantum signal processing and information to help break the code for ultra-secure telecoms and significantly accelerate quantum computing.

Quantum optical micro-crests have achieved a record complexity and complexity in the photonic quantum version of the classical computer-based qubit, QuDit, which can be generated and controlled in the small space of a computer chip.

These breakthroughs show that a compact, very complex quantum may exist outside of major labs, which opens up the possibility of end-quantum devices being used in laptops and mobile phones, and thus the visualization of powerful optical quantum computers is closer than ever.

Explore also:
Multi-purpose silicon chips designed to handle quantum information

More information:
Michael Kues et al. Quantum Optical Microscopes, Nature Photonics (2019). DOI: 10.1038 / s41566-019-0363-0

Magazine reference:
Nature Photonics

Provided by:
Technological University of Swinbrook

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