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Overview of all focus news of the innovations-report

Overview of the focus news:

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Im Focus: Distorted Atoms

In two experiments performed at the free-electron laser FLASH in Hamburg a cooperation led by physicists from the Heidelberg Max Planck Institute for Nuclear physics (MPIK) demonstrated strongly-driven nonlinear interaction of ultrashort extreme-ultraviolet (XUV) laser pulses with atoms and ions. The powerful excitation of an electron pair in helium was found to compete with the ultrafast decay, which temporarily may even lead to population inversion. Resonant transitions in doubly charged neon ions were shifted in energy, and observed by XUV-XUV pump-probe transient absorption spectroscopy.

An international team led by physicists from the MPIK reports on new results for efficient two-electron excitations in helium driven by strong and ultrashort...

Im Focus: A Memory Effect at Single-Atom Level

An international research group has observed new quantum properties on an artificial giant atom and has now published its results in the high-ranking journal Nature Physics. The quantum system under investigation apparently has a memory - a new finding that could be used to build a quantum computer.

The research group, consisting of German, Swedish and Indian scientists, has investigated an artificial quantum system and found new properties.

Im Focus: Shedding new light on the charging of lithium-ion batteries

Exposing cathodes to light decreases charge time by a factor of two in lithium-ion batteries.

Researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory have reported a new mechanism to speed up the charging of lithium-ion...

Im Focus: Visible light and nanoparticle catalysts produce desirable bioactive molecules

Simple photochemical method takes advantage of quantum mechanics

Northwestern University chemists have used visible light and extremely tiny nanoparticles to quickly and simply make molecules that are of the same class as...

Im Focus: An amazingly simple recipe for nanometer-sized corundum

Almost everyone uses nanometer-sized alumina these days - this mineral, among others, constitutes the skeleton of modern catalytic converters in cars. Until now, the practical production of nanocorundum with a sufficiently high porosity has not been possible. The situation has changed radically with the presentation of a new method of nanocorundum production, developed as part of a German-Polish cooperation of scientists from Mülheim an der Ruhr and Cracow.

High temperatures and pressures, processes lasting for even dozens of days. Current methods of producing nanometer-sized alumina, a material of significant...

Im Focus: Structured light promises path to faster, more secure communications

Quantum mechanics is embracing patterns of light to create an alphabet that can be leveraged to build a light-based quantum network

Structured light is a fancy way to describe patterns or pictures of light, but deservedly so as it promises future communications that will be both faster and...

Im Focus: Topological Nanoelectronics

Physicists at the University of Würzburg have made a ground-breaking discovery: They have realized a fundamental nanoelectronic device based on the topological insulator HgTe previously discovered in Würzburg.

Topological insulators are materials with astonishing properties: Electric current flows only along their surfaces or edges, whereas the interior of the...

Im Focus: Researchers design tunable, self-recovering dyes for use in next-generation smart devices

The building blocks of rationally designed chemicals are simple elements: carbon, hydrogen, oxygen and so on. These elements can be combined in myriad ways to accomplish a variety of chemicals with different characteristics. Even the same chemical can be treated differently - with pressure or heat, for example - to show drastically different properties. A simpler version is to think of how water can be boiled to cook pasta or frozen to become ice - the same ingredient can be made into two different states via temperature treatment.

Now, researchers are working to better control how the chemicals respond to treatment, as well as how to reverse the chemicals back to their original state...

Im Focus: Antibiotics with Novel Mechanism of Action Discovered

Many life-threatening bacteria are becoming increasingly resistant to existing antibiotics. Swiss researchers co-headed by the University of Zurich have now discovered a new class of antibiotics with a unique spectrum of activity and mechanism of action – a major step in the fight against antimicrobial resistance. By disrupting outer membrane synthesis, the antibiotics effectively kill Gram-negative bacteria.

The rapid emergence of antimicrobial resistance is a matter of global concern. According to the World Health Organization (WHO), particularly Gram-negative...

Im Focus: Researchers watch quantum knots untie

After first reporting the existence of quantum knots, Aalto University & Amherst College researchers now report how the knots behave

A quantum gas can be tied into knots using magnetic fields. Our researchers were the first to produce these knots as part of a collaboration between Aalto...

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