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Search results for photonic

Optics & Photonics Jul 9, 2024

Photons from quantum dot emitters violate Bell inequality in new study

A new study in Nature Âé¶¹ÒùÔºics demonstrates a novel method for generating quantum entanglement using a quantum dot, which violates the Bell inequality. This method uses ultra-low power levels and could pave the way for scalable ...

Optics & Photonics Jul 8, 2024

New shapes of photons open doors to advanced optical technologies

Researchers from the University of Twente in the Netherlands have gained important insights into photons, the elementary particles that make up light. They 'behave' in an amazingly greater variety than electrons surrounding ...

Space Exploration Jul 4, 2024

A concentrated beam of particles and photons could push us to Proxima Centauri

Getting to Proxima Centauri b will take a lot of new technologies, but there are increasingly exciting reasons to do so. Both public and private efforts have started seriously looking at ways to make it happen, but so far, ...

Optics & Photonics Jul 3, 2024

Scientists achieve first intercity quantum key distribution with deterministic single-photon source

Conventional encryption methods rely on complex mathematical algorithms and the limits of current computing power. However, with the rise of quantum computers, these methods are becoming increasingly vulnerable, necessitating ...

Astronomy Jun 24, 2024

Revived technology used to count individual photons from distant galaxies

Using an instrument on the 4.1-meter Southern Astrophysical Research Telescope, researchers have obtained the first astronomical spectrum using skipper charge-coupled devices (CCDs).

Optics & Photonics Jun 21, 2024

Scientists develop innovative method to validate quantum photonics circuits performance

A team of researchers from the University of Ottawa's Nexus for Quantum Technologies Institute (NexQT), led by Dr. Francesco Di Colandrea, under the supervision of Professor Ebrahim Karimi, associate professor of physics, ...

Optics & Photonics Jun 20, 2024

New photonic chip spawns nested topological frequency comb

Scientists on the hunt for compact and robust sources of multicolored laser light have generated the first topological frequency comb. Their result, which relies on a small silicon nitride chip patterned with hundreds of ...

Optics & Photonics Jun 19, 2024

Upgraded advanced photon source sees first X-ray light for science

After a year of installation and commissioning, the new electron storage ring at the heart of the Advanced Photon Source—powered by a world's first injection technique—is ready for business.

General Âé¶¹ÒùÔºics Jun 14, 2024

Quantum entangled photons react to Earth's spin

A team of researchers led by Philip Walther at the University of Vienna carried out a pioneering experiment where they measured the effect of the rotation of Earth on quantum entangled photons. The work, published in Science ...

Optics & Photonics Jun 5, 2024

Toward testing the quantum behavior of gravity: A photonic quantum simulation

In a development at the intersection of quantum mechanics and general relativity, researchers have made significant strides toward unraveling the mysteries of quantum gravity. This work sheds new light on future experiments ...

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