Search results for quanta

Quantum Physics Sep 12, 2022

Making mini-magnets that induce a quantum anomalous Hall effect

A new device has been fabricated that can demonstrate the quantum anomalous Hall effect, in which tiny, discrete voltage steps are generated by an external magnetic field. This work may enable extremely low-power electronics, ...

Astronomy Sep 9, 2022

Theoretical physicists argue that black holes admit vortex structures

Black holes are astronomical objects with extremely strong gravitational pulls from which not even light can escape. While the idea of bodies that would trap light has been around since the 18th century, the first direct ...

Quantum Physics Sep 7, 2022

Scientists see spins in a 2D magnet

All magnets—from the simple souvenirs hanging on your refrigerator to the disks that give your computer memory to the powerful versions used in research labs—contain spinning quasiparticles called magnons. The direction ...

Superconductivity Aug 23, 2022

Fundamental effect of superconductor physics observed 30 years after it was predicted

An experimental discovery of a fundamental physical phenomenon is not something that happens often. Yet this is what Skoltech researchers and their European colleagues recently managed to do: In their paper in Nature, they ...

Quantum Physics Jul 14, 2022

Importance of the science of measurement in the quantum revolution

In an article recently published in Nature Physics, experts from NPL and partner organizations from around the globe explore the critical role of National Metrology Institutes (NMIs) in the quantum revolution.

Optics & Photonics Jun 7, 2022

Investigating electrons with a traditional scanning microscope

Physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have designed a framework that allows scientists to observe interactions between light and electrons using a traditional scanning electron microscope. ...

Quantum Physics May 25, 2022

Secure communication with light particles that sidesteps the reliance on polarization

A new communication system has been developed to exchange symmetric keys between parties in order to encrypt messages so that they cannot be read by third parties. In cooperation with Deutsche Telekom, researchers led by ...

Quantum Physics May 6, 2022

A step forward in modern quantum technology: Frequency conversion of single photons at arbitrary wavelengths

Quanta of light—photons—form the basis of quantum key distribution in modern cryptographic networks. Before the huge potential of quantum technology is fully realized, however, several challenges remain. A solution to ...

Optics & Photonics Apr 11, 2022

Study highlights the possibility of building wave-shape-tolerant qubit gates

Quantum computers, machines that leverage quantum states to perform computations and store data, could soon revolutionize the computing industry, achieving significantly greater speeds and performance than existing computers. ...

Quantum Physics Feb 10, 2022

Measuring Einstein's photoelectric effect: The time it takes for an electron to be released

When light hits a material, electrons can be released from this material—the photoelectric effect. Although this effect played a major role in the development of the quantum theory, it still holds a number of secrets: To ...

page 5 from 33