Search results for quantum entanglement

General Physics Dec 14, 2007

Quantum Communication Over Flawed Networks may be Possible

If successfully implemented, quantum communication could be an extremely secure method of transmitting information – but there are major roadblocks to pass. Recently, physicists suggested a way, at least in theory, to overcome ...

Optics & Photonics Jun 16, 2023

Researchers manufacture first-ever droplet-etched quantum dots that glow in C-band optical light

Paderborn researchers from the Department of Physics and the Institute for Photonic Quantum Systems (PhoQS) have succeeded in manufacturing quantum dots—nanoscopic structures where the material's quantum properties come ...

Quantum Physics Apr 22, 2022

Two teams use neutral atoms to create quantum circuits

Two teams of researchers working independently have shown the viability of using neutral atoms to create quantum circuits—both have published outlines of their work in the journal Nature. One of the groups, with members ...

Quantum Physics Dec 17, 2020

Researchers create entangled photons 100 times more efficiently than previously possible

Super-fast quantum computers and communication devices could revolutionize countless aspects of our lives—but first, researchers need a fast, efficient source of the entangled pairs of photons such systems use to transmit ...

General Physics Jun 16, 2020

Quantum cryptography keys for secure communication distributed 1,000 kilometers farther than previous attempts

The exchange of a secret key for encrypting and decrypting messages over a distance of 1,120 kilometers is reported in Nature this week. This achievement is made using entanglement-based quantum key distribution, a theoretically ...

Quantum Physics Oct 16, 2019

Quantum physics: Ménage à trois photon-style

Entanglement is one of the properties specific to quantum particles. When two photons become entangled, for instance, the quantum state of the first will correlate perfectly with the quantum state of the second, even if they ...

General Physics Oct 17, 2006

Graph States and Entanglement

One of the bigger problems with current experiments on linear optics quantum information is that as the system is scaled up, it leads to inefficient scaling, and this in turn limits implementation to small systems. Luming ...

Nanophysics Apr 15, 2024

A magnetic nanographene butterfly poised to advance quantum technologies

Researchers from the National University of Singapore (NUS) have developed a new design concept for creating next-generation carbon-based quantum materials, in the form of a tiny magnetic nanographene with a unique butterfly-shape ...

Quantum Physics Oct 12, 2023

Self-correcting quantum computers within reach?

Quantum computers promise to reach speeds and efficiencies impossible for even the fastest supercomputers of today. Yet the technology hasn't seen much scale-up and commercialization largely due to its inability to self-correct. ...

Optics & Photonics Sep 7, 2023

Unlocking quantum potential: Harnessing high-dimensional quantum states with QDs and OAM

Quantum technology's future rests on the exploitation of fascinating quantum mechanics concepts—such as high-dimensional quantum states. Think of these states as basic ingredients of quantum information science and quantum ...

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