Tag Archive for 'Electron'

Satya Sainadh et al put an upper limit of 1.8 attoseconds on any tunneling delay, in agreement with theoretical findings and ruling out the interpretation of all commonly used ‘tunneling times’ as time spent by an electron under the potential barrier. Image credit: Griffith University.

Quantum Tunneling is Near Instantaneous, Experiments Show

Mar 21, 2019 by News Staff

Tunneling, a key feature of quantum mechanics, is when a particle that encounters a seemingly insurmountable barrier passes through it, ending up on the...

Positronium is a hydrogen-like atom consisting of a positron and an electron revolving around each other. Image credit: Pete Linforth.

CERN Physicists Create Long-Lived Positronium

Mar 8, 2019 by News Staff

Physicists from the AEgIS (Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy) Collaboration at CERN have found a new way of making long-lived...

The two types of chiral surface excitons are on the right and left side of the image. They are generated by right- and left-handed light (photons in blue). The excitons consist of an electron (light blue) orbiting a ‘hole’ (black) in the same orientation as the light. The electron and hole are annihilated in less than a trillionth of a second, emitting light (photons in green) that could be harnessed for lighting, solar cells, lasers and electronic displays. Image credit: Hsiang-Hsi (Sean) Kung / Rutgers University-New Brunswick.

Scientists Discover Exotic Spiraling Electrons

Feb 19, 2019 by News Staff

Rutgers University’s Professor Girsh Blumberg and colleagues have discovered an exotic form of electrons that spin like planets. Named chiral surface...

In conventional electronic devices, electricity requires the movement of electrons (blue spheres) and their positive counterparts, called holes (red spheres), which behave much like the gas molecules in our atmosphere. Although they move rapidly and collide infrequently in the gas phase, electrons and holes can condense into liquid droplets akin to liquid water in devices composed of ultrathin materials. Image credit: QMO Lab, University of California, Riverside.

‘Electron Liquid’ Created at Room Temperature

Feb 5, 2019 by News Staff

A team of physicists at the University of California, Riverside, has produced the first ‘electron-hole liquid’ at room temperature. In conventional...

Langin et al created the world’s first laser-cooled neutral plasma. Image credit: Brandon Martin / Rice University.

Physicists Create World’s First Laser-Cooled Neutral Plasma

Jan 7, 2019 by News Staff

Plasmas are naturally formed at high temperatures, such as those reached in the interiors of stars. Neutral plasmas consist of equal numbers of positive...

Electrons Are Perfectly Spherical, New Measurements Confirm

Oct 18, 2018 by News Staff

Physicists from the Advanced Cold Molecule Electron Electric Dipole Moment (ACME) Collaboration have examined the shape of an electron’s charge with...

Artist’s impression of a cloud of trapped antihydrogen atoms. Image credit: Chukman So.

CERN Physicists Observe Lyman-alpha Transition in Antihydrogen

Aug 24, 2018 by News Staff

Physicists from the ALPHA Collaboration at CERN have detected the Lyman-alpha transition — when the hydrogen electron transitions between the lowest-energy...

Rossi et al operate a hybrid electron pump in silicon obtained by coupling a quantum dot to multiple parasitic states and achieve robust current quantization up to a few gigahertz. Image credit: Rossi et al, doi: 10.1021/acs.nanolett.8b00874.

Researchers Move One Step Closer to High-Performance Quantum Computing

Jul 12, 2018 by News Staff

A multinational team of researchers led by University of Cambridge scientist Dr. Alessandro Rossi and University of Adelaide’s Dr. Giuseppe Tettamanzi...

Our planet is surrounded by the magnetosphere, shown here in blue. As charged particles from the Sun flow around the Earth’s magnetosphere, it forms the magnetosheath, shown in yellow. Image credit: Mary Pat Hrybyk-Keith / NASA’s Goddard Space Flight Center.

NASA’s MMS Mission Discovers New Magnetic Process in Earth’s Magnetosheath Region

May 10, 2018 by News Staff

Earth is surrounded by a protective magnetic environment, the magnetosphere, which deflects a supersonic stream of charged particles from the Sun, known...

The wavelength of emitted light grows, that is, the energy decreases, along the gold nanorod array; a Bose–Einstein condensate forms when an energy minimum of the lattice is reached. Image credit: Tommi Hakala & Antti Paraoanu, Aalto University.

Physicists Create Bose-Einstein Condensate of ‘Surface Plasmon Polaritons’

Apr 18, 2018 by News Staff

A team of physicists at Aalto University in Finland has successfully created a Bose-Einstein condensate of light coupled with metal (gold) electrons, so-called...

On October 19, 2014, Comet Siding Spring made a remarkably close encounter with Mars, buzzing the planet at just one third of the Earth-Moon distance. Image credit: NASA’s Goddard Space Flight Center.

Physicists Solve Mystery of Why Comets Emit X-Rays

Mar 15, 2018 by News Staff

The long-standing mystery of why comets give off X-ray emission has been solved by a group of experimental physicists led by the University of Oxford,...

This artist’s impression shows a gamma-ray burst in a star forming region. Image credit: L. Calçada / ESO.

Physicists Create Mini Gamma-Ray Burst in the Lab

Jan 24, 2018 by News Staff

An international team of physicists has created the first small-scale replica of gamma ray bursts in a laboratory, opening up a whole new way to investigate...

Physicists Observe Hyperfine Spectrum of Antihydrogen

Aug 7, 2017 by News Staff

In a paper published in the August 3, 2017 issue of the journal Nature, physicists with the ALPHA collaboration, a multinational project based at CERN,...

Schematic of the organic microcavity used to observe superfluid flow. Image credit: Polytechnique Montreal.

Superfluid Motion of Light Observed at Room Temperature

Jun 9, 2017 by News Staff

An international team of physicists has experimentally demonstrated that superfluid motion of light is possible under ambient conditions. Until now, this...

In this illustration, an ultra-intense X-ray laser pulse from SLAC’s Linac Coherent Light Source knocks so many electrons out of a molecule’s iodine atom (right) that the iodine starts pulling in electrons from the rest of the molecule (lower left), like an electromagnetic version of a black hole. Many of the stolen electrons are also knocked out by the laser pulse; then the molecule explodes. Image credit: DESY / Science Communication Lab.

Researchers Create Molecular Version of Black Hole

Jun 2, 2017 by News Staff

When a team of physicists focused the full intensity of SLAC’s Linac Coherent Light Source (LCLS) Coherent X-ray Imaging instrument — the world’s...

$Photograph of X-ray diffraction quality single-crystals of [K(2.2.2-cryptand)]{PuII[C5H3(SiMe3)2]3}, [K(crypt)][PuIICp’’3]. Image credit: Cory J. Windorff et al, doi: 10.1021/jacs.7b00706.$