Physics

Physicists grab individual atoms in ground-breaking experiment

In a first for quantum physics, researchers have 'held' individual atoms in place and observed previously unseen complex atomic interactions.

10,000 times faster calculations of many-body quantum dynamics possible

How an electron behaves in an atom, or how it moves in a solid, can be predicted precisely with the equations of quantum mechanics. These theoretical calculations agree with the results from experiments. But complex quantum systems, which contain many electrons or elementary particles can currently not be described exactly. A team has now developed a simulation method, which enables quantum mechanical calculations up to around 10,000 times faster than previously possible.

Physicists grab individual atoms in groundbreaking experiment

In a first for quantum physics, University of Otago researchers have "held" individual atoms in place and observed previously unseen complex atomic interactions.

What Exoplanet Is Closest to Earth?

The nearest exoplanet discovered so far orbits the star Proxima Centauri, located 4.2 light-years from our planet.

Social Spiders and Science Fraud

Reflections on a new case of apparent data manipulation

Five millimeter diameter motor is powered directly with light

Researchers at the Faculty of Physics at the University of Warsaw, with colleagues from Poland and China used liquid crystal elastomer technology to demonstrate a rotary micromotor powered with light. The 5-millimeter diameter ring, driven and controlled by a laser beam, can rotate and perform work, e.g. by rotating another element installed on the same axis.

Unraveling the physics behind tossing fried rice

A pair of researchers at the Georgia Institute of Technology has unraveled the physics behind the optimal way to toss fried rice while it is cooking. In their paper published in Journal of the Royal Society Interface, Hungtang Ko and David Hu describe filming chefs in Chinese restaurants cooking fried rice and what they learned about the physics involved.

3-D imaging the flavor content of the nucleon

The Jefferson Lab Hall A Collaboration, in an experiment led by researchers at Faculté des Sciences de Monastir in Tunisia, Institut de Physique Nucléaire d'Orsay in France and Old Dominion University in the United States, has recently gathered the first experimental observations of deeply virtual Compton scattering (DVCS) in neutrons.

How Are Exoplanets Discovered?

The exoplanets outside our solar system are practically invisible. So, how do astronomers find them?

New world record for conversion of solar energy to electricity using quantum dots

Researchers have set a world record for the conversion of solar energy to electricity via the use of tiny nanoparticles called 'quantum dots'. The technology has a huge range of potential applications, including the possibility to use it as a flexible, transparent skin to power cars, planes, homes and wearable technology.

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