Quantum Optics News

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Quantum Dots Power Secure Intercity Communication

A group of German scientists at Leibniz University of Hannover, University of Stuttgart, and other researchers has achieved the first intercity QKD experiment with a deterministic single-photon source, which will transform the way to defend private data from online threats.

12 Aug 2024

Breakthrough Light Source Generates Bright, Entangled Photons for Quantum Communication

Imagine the possibility of sending messages that are completely impervious to even the most powerful computers. This is the incredible promise of quantum communication, which harnesses the unique properties of light particles known as photons.

7 Aug 2024

Optical Fibers Designed for the Quantum Computing Era

According to a study published in Applied Physics Letters Quantum, physicists from the University of Bath have designed a new generation of customized optical fibers to address data transfer difficulties that are likely to emerge in the future age of quantum computing.

30 Jul 2024

Novel Non-Hermitian and Nonlinear Dynamics Observed in Optically Trapped Glass Nanoparticles

Using two optically trapped glass nanoparticles, researchers observed a novel collective Non-Hermitian and nonlinear dynamic driven by nonreciprocal interactions. This contribution expands traditional optical levitation with tweezer arrays by incorporating the so called non-conservative interactions.

29 Jul 2024

Optical Fibres Fit for the Age of Quantum Computing

A new generation of specialty optical fibres has been developed by physicists at the University of Bath to cope with the challenges of data transfer expected to arise in the future age of quantum computing.

From University of Bath 29 Jul 2024

Single Image Revolutionizes Camera Quantum Efficiency Determination

A paper published in the Journal of Imaging has proposed a novel approach for accurate camera quantum efficiency (QE) determination from a single image. Difference between ground truth (GT) and recovered (Rec) qua...

25 Jul 2024

Accurate Camera Calibration with Streamlined QEC Estimation

Researchers have developed a technique to estimate quantum efficiency curves (QECs) for cameras using a single photograph, overcoming noise sensitivity issues inherent in previous methods. This approach, utilizing ultra-narrow band-pass interference filters, ensures stable and accurate QEC reconstruction, significantly speeding up the calibration process for camera manufacturers and photographers.

23 Jul 2024