Search results for continuous variable quantum

Analytical Chemistry Apr 5, 2024

Scientists harness chemical dynamics for complex problem solving

At the intersection of chemistry and computation, researchers from the University of Glasgow have developed a hybrid digital-chemical probabilistic computational system based on the Belousov-Zhabotinsky (BZ) reaction which ...

Quantum Physics Apr 2, 2024

100 kilometers of quantum-encrypted transfer

Researchers at DTU have successfully distributed a quantum-secure key using a method called continuous variable quantum key distribution (CV QKD). The researchers have managed to make the method work over a record 100 km ...

Optics & Photonics Mar 13, 2024

Researchers achieve quantum key distribution for cybersecurity in novel experiment

Researchers at the Department of Energy's Oak Ridge National Laboratory have demonstrated that advanced quantum-based cybersecurity can be realized in a deployed fiber link.

Optics & Photonics Feb 26, 2024

Measuring the properties of light: Scientists realize new method for determining quantum states

Scientists at Paderborn University have used a new method to determine the characteristics of optical quantum states. For the first time, they are using certain photon detectors—devices that can detect individual light particles—for ...

Astronomy Feb 6, 2024

What is dark energy? Inside our accelerating, expanding universe

Some 13.8 billion years ago, the universe began with a rapid expansion we call the Big Bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn't ...

Earth Sciences Jan 24, 2024

Researchers advocate for sustainable logging to safeguard against global flood risks

It's time to recognize the power of healthy forests in managing global growing flood risk, and to shift towards more sustainable forestry practices and policy.

Optics & Photonics Jan 17, 2024

Researchers observe the wave-particle duality of two photons

Understanding the nature of quantum objects' behaviors is the premise for a reasonable description of the quantum world. Depending on whether the interference can be produced or not, the quantum object is endowed with dual ...

General Physics Dec 14, 2023

Extending the uncertainty principle by using an unbounded operator

A study published in the journal Physical Review Letters by researchers in Japan solves a long-standing problem in quantum physics by redefining the uncertainty principle.

Optics & Photonics Dec 4, 2023

A method to resolve quantum interference between photoionization pathways with attosecond resolution

The field of attosecond physics was established with the mission of exploring light–matter interactions at unprecedented time resolutions. Recent advancements in this field have allowed physicists to shed new light on the ...

Nanophysics Nov 13, 2023

Autonomous lab discovers best-in-class quantum dot in hours. It would have taken humans years

It can take years of focused laboratory work to determine how to make the highest quality materials for use in electronic and photonic devices. Researchers have now developed an autonomous system that can identify how to ...

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