Quantum Optics News

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A Simple Laser to Create Higher-Dimensional Classically Entangled Light

Tailoring light is much like tailoring cloth, cutting and snipping to turn a bland fabric into one with some desired pattern. In the case of light, the tailoring is usually done in the spatial degrees of freedom, such as its amplitude and phase (the "pattern" of light), and its polarization, while the cutting and snipping might be control with spatial light modulators and the like.

24 Mar 2021

New Smart Quantum Technology for Spatial Mode Correction of Single Photons

Researchers from Louisiana State University have introduced a smart quantum technology for the spatial mode correction of single photons. In a paper featured on the cover of the March 2021 issue of Advanced Quantum Technologies, the authors exploit the self-learning and self-evolving features of artificial neural networks to correct the distorted spatial profile of single photons.

17 Mar 2021

Astronomers Detect Distant Galaxy that Could be the Faintest Radio-Emitting Object

Radio telescopes—the most sensitive radio receivers in the world—can detect even extremely feeble wisps of radio emission from objects at the farthest boundaries of the universe.

17 Mar 2021

Using Tailored Light Pulses to Individually Address Quantum Emitters

In order to exploit the properties of quantum physics technologically, quantum objects and their interaction must be precisely controlled. In many cases, this is done using light. Researchers at the University of Innsbruck and the Institute of Quantum Optics and Quantum Information (IQOQI) of the Austrian Academy of Sciences have now developed a method to individually address quantum emitters using tailored light pulses.

15 Mar 2021

Astronomers Use Ancient Observations to Paint Aged Star System

RV Tauri variable is a rare form of stellar binary in which a pair of stars—one nearing the end of its life—revolves inside an expansive disk of dust.

15 Mar 2021

Scientists Study Dense Molecular Gas in Circumnuclear Disk of Ultraluminous Infrared Galaxy

Huge reservoirs of molecular gas are found in ultraluminous infrared galaxies (ULIRGs), which are powered by starburst activity and usually with supermassive black holes that tend to accumulate material at their nuclei.

15 Mar 2021

Researchers Measure the Smallest Gravitational Force

Using a highly sensitive pendulum, scientists have successfully determined the gravitational field of a gold sphere, measuring only 2 mm in diameter, and thus, the smallest gravitational force to date.

11 Mar 2021

Detection of Antineutrinos Confirms Standard Model of Particle Physics

On December 6th, 2016, a high-energy particle charged toward the planet Earth from outer space at almost the speed of light.

11 Mar 2021

Research Breaks the Warp Barrier for Faster-than-Light Travel

If travel to distant stars within an individual's lifetime is going to be possible, a means of faster-than-light propulsion will have to be found. To date, even recent research about superluminal (faster-than-light) transport based on Einstein's theory of general relativity would require vast amounts of hypothetical particles and states of matter that have "exotic" physical properties such as negative energy density.

10 Mar 2021

Evidence Found for Extremely Long Particle Jet from Supermassive Black Hole

Astronomers used NASA’s Chandra X-ray Observatory to discover proof of the existence of an extremely long jet of particles discharged from a supermassive black hole in the early Universe.

10 Mar 2021