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Physics - Chemistry - 12.08.2015
The BASE experiment at CERN compares protons and antiprotons with high precision
The BASE experiment at CERN compares protons and antiprotons with high precision
The Baryon Antibaryon Symmetry Experiment (BASE ) at CERN 2 's Antiproton Decelerator (AD), reports the most precise comparison of the charge-to-mass ratio of the proton to that of its antimatter equivalent, the antiproton. The charge-to-mass ratio - an important property of particles - can be measured by observing the oscillation of a particle in a magnetic field.

Physics - 14.07.2015
CERN’s LHCb experiment reports observation of exotic pentaquark particles
CERN’s LHCb experiment reports observation of exotic pentaquark particles
LHCb experiment at CERN's Large Hadron Collider has reported the discovery of a class of particles known as pentaquarks. "The pentaquark is not just any new particle," said LHCb spokesperson Guy Wilkinson. " It represents a way to aggregate quarks, namely the fundamental constituents of ordinary protons and neutrons, in a pattern that has never been observed before in over fifty years of experimental searches .

Physics - 03.06.2015
LHC experiments are back in business at a new record energy
LHC experiments are back in business at a new record energy
Today, CERN 's Large Hadron Collider (LHC) started delivering physics data for the first time in 27 months. After an almost two year shutdown and several months re-commissioning, the LHC is now providing collisions to all of its experiments at the unprecedented energy of 13 TeV, almost double the collision energy of its first run.

Materials Science - Physics - 06.03.2015
Heat Waves in Graphene
Heat Waves in Graphene
EPFL researchers have shed new light on the fundamental mechanisms of heat dissipation in graphene and other two-dimensional materials. They have shown that heat can propagate as a wave over very long distances. This is key information for engineering the electronics of tomorrow. In the race to miniaturize electronic components, researchers are challenged with a major problem: the smaller or the faster your device, the more challenging it is to cool it down.

Physics - 02.03.2015
The first ever photograph of light as both a particle and wave
The first ever photograph of light as both a particle and wave
Light behaves both as a particle and as a wave. Since the days of Einstein, scientists have been trying to directly observe both of these aspects of light at the same time. Now, scientists at EPFL have succeeded in capturing the first-ever snapshot of this dual behavior. Quantum mechanics tells us that light can behave simultaneously as a particle or a wave.

Physics - 11.02.2015
CERN experiment brings precision to a cornerstone of particle physics
CERN experiment brings precision to a cornerstone of particle physics
The COMPASS experiment at CERN reports a key measurement on the strong interaction. The strong interaction binds quarks into protons and neutrons, and protons and neutrons into the nuclei of all the elements from which matter is built. Inside those nuclei, particles called pions made up of a quark and an antiquark mediate the interaction.

Physics - 04.02.2015
Risky slopes: evaluating the link between snowfall and avalanches
Risky slopes: evaluating the link between snowfall and avalanches
Ski resorts and researchers could potentially rely on statistics to evaluate the long-term avalanche activity on their slopes with a simple webcam, a weather station, and several years' worth of observations. Researchers from EPFL have validated a statistical avalanche model that translates observations into an assessment of the link between snowfall and avalanches.

Physics - Materials Science - 19.01.2015
Graphene multiplies the power of light
Graphene multiplies the power of light
Could graphene turn light to electricity? Scientists have shown that graphene can convert a single photon into multiple electrons, showing much promise for future photovoltaic devices. Graphene is a material that has gathered tremendous popularity in recent years, due to its extraordinary strength and light weight.

Physics - 19.12.2014
Unraveling the light of fireflies
Unraveling the light of fireflies
How do fireflies produce those mesmerizing light flashes? Using cuttingedge imaging techniques, scientists from Switzerland and Taiwan have unraveled the firefly's intricate light-producing system for the first time. Fireflies used rapid light flashes to communicate. This "bioluminescence" is an intriguing phenomenon that has many potential applications, from drug testing and monitoring water contamination, and even lighting up streets using glow-in-dark trees and plants.

Physics - Materials Science - 12.10.2014
Useful for spintronics: Big surprises in a thin surface region
Useful for spintronics: Big surprises in a thin surface region
The need for ever faster and more efficient electronic devices is growing rapidly, and thus the demand for new materials with new properties. Oxides, especially ones based on strontium titanate (SrTiO 3 ), play an important role here. Researchers recently discovered that SrTiO 3 , although actually an insulator, can form a metallic layer on its surface, in which electric current can flow.

Physics - Astronomy / Space Science - 18.09.2014
New territories in the flux of cosmic rays
New territories in the flux of cosmic rays
The Alpha Magnetic Spectrometer (AMS ) collaboration has today presented its latest results. These are based on the analysis of 41 billion particles detected with the space-based AMS detector aboard the International Space Station. The results, presented during a seminar at CERN 2 , provide new insights into the nature of the mysterious excess of positrons observed in the flux of cosmic rays.

Physics - Chemistry - 15.07.2014
Smallest Swiss Cross – Made of 20 Single Atoms
Smallest Swiss Cross – Made of 20 Single Atoms
The manipulation of atoms has reached a new level: Physicists were able to place 20 single atoms on a fully insulated surface at room temperature to form the smallest "Swiss cross", thus taking a big step towards next generation atomic-scale storage devices. Ever since the 1990s, physicists have been able to directly control surface structures by moving and positioning single atoms to certain atomic sites.

Physics - 22.06.2014
CERN experiments report new Higgs boson measurements
CERN experiments report new Higgs boson measurements
The CMS experiment at CERN reports new results on an important property of the Higgs particle, whose discovery was announced by the ATLAS and CMS experiments on 4 July 2012. The CMS result follows preliminary results from both experiments, which both reported strong evidence for the fermionic decay late in 2013.

Physics - Electroengineering - 06.03.2014
Observed live with x-ray laser: electricity controls magnetism
Observed live with x-ray laser: electricity controls magnetism
Data on a hard drive is stored by flipping small magnetic domains. Researchers have now changed the magnetic arrangement in a material much faster than is possible with today's hard drives. The researchers used a new technique where an electric field triggers these changes, in contrast to the magnetic fields commonly used in consumer devices.

Physics - 22.12.2013
Superconductivity switched on by magnetic field
Superconductivity switched on by magnetic field
Superconductivity and magnetic fields are normally seen as rivals - very strong magnetic fields normally destroy the superconducting state. Physicists have now demonstrated that a novel superconducting state is only created in the material CeCoIn 5 when there are strong external magnetic fields. This state can then be manipulated by modifying the field direction.

Computer Science - Physics - 05.12.2013
Ten Times More Throughput on Optic Fibers
Ten Times More Throughput on Optic Fibers
Two EPFL scientists have shown how to achieve a dramatic increase in the capacity of optical fibers.

Physics - Materials Science - 12.11.2013
Electrons with a split personality
Electrons with a split personality
Some electrons in a superconducting material behave as if they were in a conventional metal, others as in an unconventional one - depending on the direction of their motion. Understanding the origins of high-temperature superconductivity, the ability of some materials to conduct electricity without any resistance and therefore without loss of energy, is one of the most important quests of modern physics.

Physics - 08.05.2013
First observations of short-lived pear-shaped atomic nuclei
First observations of short-lived pear-shaped atomic nuclei
A team has shown that some atomic nuclei can assume asymmetric, "pear" shapes. The observations contradict some existing nuclear theories and will require others to be amended. Most nuclei have the shape of a rugby ball. While state-of-the-art theories are able to predict this behaviour, the same theories have predicted that for some particular combinations of protons and neutrons, nuclei can also assume asymmetric shapes, like a pear.

Physics - Materials Science - 05.05.2013
Tiny Magnets as a Model System
Tiny Magnets as a Model System
In the microscopic world, everything is in motion: atoms and molecules vibrate, proteins fold, even glass is a slow flowing liquid. And during each movement there are interactions between the smallest elements - for example, the atoms - and their neighbours. To make these movements visible, scientists have developed a special model system.
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