Quantum Physics News

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Researchers Analyze Behavior of Positronium in Particle Billiards

Collision physics can be like a game of billiards. Yet in the microscopic world, the outcome of the game is hard to predict. Fire a particle at a group of other particles, and they may scatter, combine or break apart, according to probability distributions governed by quantum mechanics. These processes can tell us about fundamental properties of matter and, if antimatter projectiles are used, also about matter-antimatter interactions.

15 Jul 2015

Fundamental Constants Being Determined with Increasing Accuracy

The fundamental constants that govern the laws of nature are being determined with increasing accuracy, according to a review paper published this week in Journal of Physical and Chemical Reference Data, from AIP Publishing.

15 Jul 2015

New Map of Dark Matter Distribution in the Universe

Dark matter may find it tougher to hide in our universe.
An international team of researchers has developed a new map of the distribution of dark matter in the universe using data from the Dark Energy Survey (DES).

15 Jul 2015

Researchers Recreate Quantum Tunneling Effect for Sound Waves

When a sound wave hits an obstacle and is scattered, the signal may be lost or degraded. But what if you could guide the signal around that obstacle, as if the interfering barrier didn't even exist? Recently, researchers at Nanjing University in China created a material from polyethylene membranes that does exactly that.

15 Jul 2015

Wavelike Quantum Behavior of Polariton Condensate at Room Temperature Demonstrated on Macroscopic Scale

For the first time, the wavelike behaviour of a room-temperature polariton condensate has been demonstrated in the laboratory on a macroscopic length scale. This significant development in the understanding and manipulation of quantum objects is the outcome of a collaboration between Professor Stéphane Kéna-Cohen of Polytechnique Montréal, Professor Stefan Maier and research associate Konstantinos Daskalakis of Imperial College London. Their work has been published in the prestigious journal Physical Review Letters.

15 Jul 2015

Minute Transistor with Single Molecule and Few Atoms Created Using Scanning Tunneling Microscope

A team of physicists from the Paul-Drude-Institut für Festkörperelektronik (PDI) and the Freie Universität Berlin (FUB), Germany, the NTT Basic Research Laboratories (NTT-BRL), Japan, and the U.S. Naval Research Laboratory (NRL), United States, has used a scanning tunneling microscope to create a minute transistor consisting of a single molecule and a small number of atoms. The observed transistor action is markedly different from the conventionally expected behavior and could be important for future device technologies as well as for fundamental studies of electron transport in molecular nanostructures. The complete findings are published in the August 2015 issue of the journal Nature Physics.

14 Jul 2015

Quantum Physics of Light Harvesting Could be a Delicate Interplay Between Vibrations and Electrons

Plants and bacteria make use of sunlight with remarkably high efficiency: nine out of ten absorbed light particles are being put to use in an ordinary bacterium. For years, it has been a pressing question of modern research whether or not effects from quantum physics are responsible for this outstanding performance of natural light harvesters.

14 Jul 2015

NASA's Fermi Gamma-Ray Space Telescope Detects Brief Record-Setting Flare from 3C 279 Blazar

Five billion years ago, a great disturbance rocked a region near the monster black hole at the center of galaxy 3C 279. On June 14, the pulse of high-energy light produced by this event finally arrived at Earth, setting off detectors aboard NASA's Fermi Gamma-ray Space Telescope and other satellites. Astronomers around the world turned instruments toward the galaxy to observe this brief but record-setting flare in greater detail.

13 Jul 2015

After Collision, Larger Galaxy Stops Smaller One from Making New Stars

When two different sized galaxies smash together, the larger galaxy stops the smaller one making new stars, according to a study of more than 20,000 merging galaxies.

13 Jul 2015

Shaking Motion Excites Fast-Moving Magnetic Waves Emanating from Supermassive Black Hole

Fast-moving magnetic waves emanating from a distant supermassive black hole undulate like a whip whose handle is being shaken by a giant hand, according to a new study using data from the National Radio Astronomy Observatory's Very Long Baseline Array. Scientists used this instrument to explore the galaxy/black hole system known as BL Lacertae (BL Lac) in high resolution.

10 Jul 2015

Quantum Physics News

Researchers Analyze Behavior of Positronium in Particle Billiards

Fundamental Constants Being Determined with Increasing Accuracy

New Map of Dark Matter Distribution in the Universe

Researchers Recreate Quantum Tunneling Effect for Sound Waves

Wavelike Quantum Behavior of Polariton Condensate at Room Temperature Demonstrated on Macroscopic Scale

Minute Transistor with Single Molecule and Few Atoms Created Using Scanning Tunneling Microscope

Quantum Physics of Light Harvesting Could be a Delicate Interplay Between Vibrations and Electrons

NASA's Fermi Gamma-Ray Space Telescope Detects Brief Record-Setting Flare from 3C 279 Blazar

After Collision, Larger Galaxy Stops Smaller One from Making New Stars

Shaking Motion Excites Fast-Moving Magnetic Waves Emanating from Supermassive Black Hole

Forty Million Collisions a Second: Building an AI to Decide What the LHC Keeps

Hyperspectral Satellite Data Is Transforming Agriculture, Mining and Environmental Monitoring

How Laser Communications Could Transform Lunar and Deep-Space Connectivity

DLS-20 Quadrupole Mass Spectrometer for Analysis of Hydrogen and Helium Isotopes

SideKick QCL Controller: Low-Noise Laser Control Solution

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Comparing RF Measurement Techniques and Instruments

How Mass Spectrometry is Advancing Nuclear Fusion Research

How Atomic References Stabilize Lasers: From Spectroscopy to Frequency Control

Quantum Physics News

Forty Million Collisions a Second: Building an AI to Decide What the LHC Keeps

Hyperspectral Satellite Data Is Transforming Agriculture, Mining and Environmental Monitoring

How Laser Communications Could Transform Lunar and Deep-Space Connectivity

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2Alice & Bob Sets Record Low for Quantum Resources Required to Break Internet Encryption

3Graphene's Ultrafast Landau-Zener-Majorana Dynamics Unveiled

4Quantum Computing Job Postings in 2026 Already Exceed All of 2025, New Coresignal Data Shows

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