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Quantum Physics Sep 4, 2023

Better cybersecurity with quantum random number generation based on a perovskite light emitting diode

Digital information exchange can be safer, cheaper and more environmentally friendly with the help of a new type of random number generator for encryption developed at Linköping University, Sweden. The researchers behind ...

Optics & Photonics Aug 24, 2023

New quantum device generates single photons and encodes information

A new approach to quantum light emitters generates a stream of circularly polarized single photons, or particles of light, that may be useful for a range of quantum information and communication applications. A Los Alamos ...

Optics & Photonics Aug 8, 2023

New metalens lights the way for advanced control of quantum emission

Quantum emission is pivotal to realizing photonic quantum technologies. Solid-state single photon emitters (SPEs), such as hexagonal boron nitride (hBN) defects, operate at room temperature. They are highly desirable due ...

Quantum Physics Aug 2, 2023

Who's afraid of quantum computing?

The road to a quantum future may be longer and more winding than some expect, but the potential it holds is profound, writes UTS Associate Professor Chris Ferrie.

Nanophysics Jul 25, 2023

Characterizing atomic defects in 2D materials to determine suitability as quantum emitters

The term molybdenum disulfide may sound familiar to some car drivers and mechanics. No wonder: the substance, discovered by U.S. chemist Alfred Sonntag in the 1940s, is still used today as a high-performance lubricant in ...

Optics & Photonics Jul 24, 2023

On-chip infrared circular polarization detector with ultrahigh discrimination

Polarization, as a primary physical quantity of light, is of great interest to almost all optical sciences and technologies. Along with linear polarization detection, circular polarization (or light ellipticity) detection ...

Nanophysics Jul 13, 2023

Scientists propose new design to implement highly directional single-photon source

A team of researchers from the Institute of Optics of CSIC and the Institute of Photonic Sciences (ICFO) of Barcelona has proposed a new design to implement highly directional single-photon sources, which constitutes an improvement ...

Optics & Photonics May 31, 2023

Examining the latest developments of spatiotemporal vortices of light

Vortices of light, null regions of intensity surrounded by spiral phases, make up the skeleton of a wavefield and influence the properties of light. Since the discovery of the tight connection of optical vortices and orbital ...

Optics & Photonics May 18, 2023

Wiring up quantum circuits with light

Quantum computers promise to solve challenging tasks in material science and cryptography that will remain out of reach even for the most powerful conventional supercomputers in the future. Yet, this will likely require millions ...

Quantum Physics May 10, 2023

New technology developed for quantum cryptography applications

The development of quantum computing means that the use of classic cryptography for secure communications is in danger of becoming obsolete. Quantum cryptography, on the other hand, uses the laws of quantum mechanics to ensure ...

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