Researchers at the universities of Mainz, Olomouc, and Tokyo succeeded in generating a logical qubit from a single light pulse that has the inherent capacity to correct errors. There has been significant progress in the field of quantum computing. Big global players, such as Google and IBM, are already offering cloud-based quantum computing services. However, quantum computers cannot yet help with problems that occur when standard computers reach the limits of their capacities because the availability of qubits or quantum…
The Event Horizon Telescope collaboration, including scientists from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has recently resolved the jet base of an evolving jet of plasma at ultra-high angular resolution. The international team of scientists used the Earth-size telescope to probe the magnetic structure in the nucleus of the radio galaxy 3C 84 (Perseus A), one of the closest active supermassive black holes in our cosmic neighbourhood. These novel results provide new insight into how jets…
A collaborative group of researchers has potentially developed a means of controlling spin waves by creating a hexagonal pattern of copper disks on a magnetic insulator (shown in Figure 1). The breakthrough is expected to lead to greater efficiency and miniaturization of communication devices in fields such as artificial intelligence and automation technology. Details of the study were published in the journal Physical Review Applied on January 30, 2024. In a magnetic material, the spins of electrons are aligned. When…
A team from TU Dortmund University recently succeeded in producing a highly durable time crystal that lived millions of times longer than could be shown in previous experiments. By doing so, they have corroborated an extremely interesting phenomenon that Nobel Prize laureate Frank Wilczek postulated around ten years ago and which had already found its way into science fiction movies. The results have now been published in Nature Physics. Crystals or, to be more precise, crystals in space, are periodic…
A European XFEL team at the Karlsruhe Institute for Technology has tested a mock-up coil of the superconducting undulator pre-series module (S-PRESSO) designed for an upgrade of the European XFEL. It reached a world record magnetic field. Undulators are one of the most important devices for a free-electron laser like the European XFEL in Schenefeld near Hamburg. With the help of a series of strong magnets an undulator creates an extremely brilliant light by forcing fast-moving electrons onto a slalom…
MultiLambdaChip project gets underway. Modern optical measurement techniques such as digital holography enable inline quality assurance. Until now, the size and cost of the light sources have prevented these measurement techniques from becoming widely established. As part of the MultiLambdaChip research project, Fraunhofer IPM is developing highly integrated, cost-effective laser light sources for use in digital holography, working in collaboration with HÜBNER Photonics, Carl Zeiss AG, cyberTECHNOLOGIES GmbH and the Laboratory for Optical Systems at the University of Freiburg. The…
The German eROSITA consortium, which includes researchers from Universität Hamburg, today published the data from its part in the first all-sky survey with the eROSITA soft X-ray imaging telescope on board the Spectrum-RG satellite. The first eROSITA all-sky survey catalog (eRASS1) is the largest X-ray catalog ever published with around 900,000 different sources. Along with the data, the consortium released today a series of scientific papers describing new results ranging from studies of the habitability of planets to the discovery…
The popular Winter School on Planetary Geologic Mapping, co-organized by Constructor University, returned to Constructor for its fourth installment, taking place January 22–26, 2024. Around 600 students and young scientists from around the world participated in the program. Together with Professor of Earth and Planetary Sciences Dr. Angelo Pio Rossi and his team, attendees focused on the planetary mapping of Venus, Icy Satellites and Small Bodies, supporting current and future planetary missions. As one of the centers for planetary geologic…
Int. research team demonstrates robust light propagation in open systems. An int. cooperation of physicists from the University of Rostock, the Cluster of Excellence ct.qmat, the Julius-Maximilians University of Würzburg and the Indiana University Indianapolis (IUPUI) have shown for the first time that light can propagate without any loss in systems that interact with their environment. Previously, it was assumed that such open systems inevitably would exhibit exponential amplification or damping of light and thus lead to the instability of…
Research team presents heavyweight champion. Superconductivity is known for more than hundred years and is well understood for so-called conventional superconductors. More recent, however, are unconventional superconductors, for which it is unclear yet how they work. A team from HZDR, together with colleagues from CEA, the Tohoku University in Japan, and the Max Planck Institute for Chemical Physics of Solids, has now gained new insights. They could explain why a new material remains superconducting even at extremely high magnetic fields…
Artificial intelligence using neural networks performs calculations digitally with the help of microelectronic chips. Physicists at Leipzig University have now created a type of neural network that works not with electricity but with so-called active colloidal particles. In their publication in the prestigious journal “Nature Communications”, the researchers describe how these microparticles can be used as a physical system for artificial intelligence and the prediction of time series. “Our neural network belongs to the field of physical reservoir computing, which…
A theoretical framework for measuring the Reynolds similitude in superfluids could help demonstrate the existence of quantum viscosity. Every fluid — from Earth’s atmosphere to blood pumping through the human body — has viscosity, a quantifiable characteristic describing how the fluid will deform when it encounters some other matter. If the viscosity is higher, the fluid flows calmly, a state known as laminar. If the viscosity decreases, the fluid undergoes the transition from laminar to turbulent flow. The degree of…
It’s oh-so-easy to be absolutely mesmerized by these spiral galaxies. Follow their clearly defined arms, which are brimming with stars, to their centers, where there may be old star clusters and – sometimes – active supermassive black holes. Only NASA’s James Webb Space Telescope can deliver highly detailed scenes of nearby galaxies in a combination of near- and mid-infrared light – and a set of these images was publicly released today. These Webb images are part of a large, long-standing project, the…
… in extreme fields with the heaviest two-electron ion. Recently, an international research team has successfully carried out a high precision x-ray spectroscopy measurement on helium-like uranium, the simplest and heaviest many-electron atomic system. The obtained results allow, for the first time in this regime, to disentangle and to test separately high-order (two-loop) one-electron and two-electron quantum electrodynamics (QED) effects and set a new important benchmark for QED in the strong field domain. Moreover, the achieved accuracy of 37 parts…
Study validates method for guided discovery of 3D flat-band materials. Rice University scientists have discovered a first-of-its-kind material, a 3D crystalline metal in which quantum correlations and the geometry of the crystal structure combine to frustrate the movement of electrons and lock them in place. The find is detailed in a study published in Nature Physics. The paper also describes the theoretical design principle and experimental methodology that guided the research team to the material. One part copper, two parts vanadium…
– builds excitement for Perseverance rover’s samples. Findings reveal eons of environmental changes and offer hope that the rover’s soil and rock samples hold traces of life. If life ever existed on Mars, the Perseverance rover’s verification of lake sediments at the base of the Jezero crater reinforces the hope that traces might be found in the crater. In new research published in the journal Science Advances, a team led by UCLA and The University of Oslo shows that at…
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