February 3, 2023

Manipulating quantum states of light at noise below the sound of silence.

Researchers from the Australian National University (ANU), Nanyang Technological University, National University of Singapore (NUS) and Shanxi University, have developed a technology that manipulates quantum states of light at noise levels quieter than the sound of silence.

The new device allows information to be encoded and manipulated within a quantum state to a resolution that is typically drowned out by vacuum noise. One way to reduce the effect of this vacuum noise is to use a light source known as “squeezed light“, which is quieter than emptiness.

This breakthrough is an important next step in the development of quantum computers.

The paper has been published in the journal Nature Photonics. (CosmosMagazine)

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