Existence of a short-lived tetraneutron predicted

Tetraneutron. Credit: Andrey Shirokov A research team at the Lomonosov Moscow State University, using new interaction between neutrons, has theoretically justified the low-energy tertaneutron resonance that was recently obtained experimentally. This proves the very brief existence of a particle consisting … Continue reading

Tracking the flow of quantum information

A Yale-led group of researchers has derived a formula for understanding where quantum objects land when they are transmitted.Credit: Illustration by Michael S. Helfenbein/Yale University If objects in motion are like rainwater flowing through a gutter and landing in a … Continue reading

Optical tractor beam traps bacteria

Picture of the distribution of the genetic information in an Escherichia coli bacterial cell: Physicists at Bielefeld University are the first to photograph this distribution at the highest optical resolution without anchoring the cells on a glass substrate. Credit: Bielefeld … Continue reading

Electron highway inside crystal

Step edges on topological crystalline insulators may lead to electrically conducting pathways where electrons with opposite spin spin move in converse directions — any U-turn is prohibited. Credit: Thomas Bathon/Paolo Sessi/Matthias Bode Physicists of the University of Würzburg have made … Continue reading

Quantum particles form droplets

Quantum droplets may preserve their form in absence of external confinement because of quantum effects. Credit: IQOQI/Harald Ritsch In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: the atoms form a … Continue reading

First ‘water-wave’ laser created

Artistic illustration of “Water-Wave” Laser. Credit: Technion Spokesperson’s Office Technion researchers have demonstrated, for the first time, that laser emissions can be created through the interaction of light and water waves. This “water-wave laser” could someday be used in tiny … Continue reading

A new way to image solar cells in 3-D

The Molecular Foundry’s Edward Barnard is part of a team of scientists that developed a new way to see inside solar cells. Credit: Marilyn Chung Berkeley Lab method could help scientists learn new ways to boost photovoltaic efficiency Next-generation solar … Continue reading

Light drives single-molecule nanoroadsters

A scanning tunneling microscope image shows two three-wheeled nanoroadsters created at Rice University and tested at the University of Graz. The light-activated roadsters, next to their molecular models, reached a top speed of 23 nanometers per hour. Credit: Alex Saywell/Leonhard … Continue reading

Bubble nucleus discovered

Credit: Michigan State University Research conducted at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University has shed new light on the structure of the nucleus, that tiny congregation of protons and neutrons found at the core of every … Continue reading

The search for dark matter

The Large Underground Xenon (LUX) experiment was one of the biggest efforts to directly detect dark matter. It was located a mile deep in a former gold mine to minimize radioactive “noise.” . Credit: C.H. Faham. Courtesy of LUX Dark … Continue reading

Teleporting toward a quantum Internet

This image shows crystals used for storing entangled photons, which behave as though they are part of the same whole. Scientists use crystals like these in quantum teleportation experiments. Credit: Félix Bussières/University of Geneva. Quantum physics is a field that … Continue reading

Lights, Action, Electrons!

The schematic depicts the time-resolved photoemission electron microscopy instrumentation that allowed the Femtosecond Spectroscopy Unit to visualize electron movements. The 800nm pump pulse (red) excites electrons while the weaker 266nm probing pulse (blue) allows for different measurements of electron movements … Continue reading

Creating antimatter via lasers?

The distribution of the laser intensity (orange), the foil electron and foil ion densities (gray), and the positron density (red) in the x–y plane. The laser pulse propagates along the x-axis, while the foil surface is perpendicular to the x-axis.Credit: … Continue reading