New ATIQ project is funded by the German Federal Ministry of Education and Research with a total volume of EUR 44.5 million. Quantum computers promise unprecedented computing power for applications where conventional data processors based on “zeros and ones” fail. In the new Trapped-Ion Quantum Computer for Applications (ATIQ) project, 25 partners from research institutions are now working together with industrial partners to develop quantum computer demonstrators implemented together with users of quantum computers. The partners will tackle major technical…
A 1,000-year-old supernova has been captured in 3D images that reveal yet unseen details of the elements that are ejected when a star explodes. Analysis of data from the Multi-Unit Spectroscopic Explorer (MUSE) and X-shooter at the European Southern Observatory’s (ESO) Very Large Telescope (VLT), offers new insights into how stars self-destruct. The new study authored by Josefin Larsson, an astrophysicist at KTH Royal Institute of Technology in Stockholm, in collaboration with researchers at Stockholm University, the University of Warwick…
Researchers study cosmic expansion using methods from many-body physics / Article published in “Physical Review Letters”. It is almost always assumed in cosmological calculations that there is a even distribution of matter in the universe. This is because the calculations would be much too complicated if the position of every single star were to be included. In reality, the universe is not uniform: in some places there are stars and planets, in others there is just a void. Physicists Michael…
Physicists from Exeter and Trondheim have developed a theory describing how space reflection and time reversal symmetries can be exploited, allowing for greater control of transport and correlations within quantum materials. Two theoretical physicists, from the University of Exeter (United Kingdom) and the Norwegian University of Science and Technology (in Trondheim, Norway), have built a quantum theory describing a chain of quantum resonators satisfying space reflection and time reversal symmetries. They have shown how the different quantum phases of such…
For exploring materials right down to the nano-level, researchers often need to construct a complex structure to house the materials – a time-consuming and complicated process. But imagine if there was a way the structure could simply build itself? That is exactly what researchers from Chalmers University of Technology, Sweden, now present in an article in the journal Nature. Their work opens up new research opportunities. Investigating nano materials can make it possible to study completely new properties and interactions….
An international team of scientists, in which researchers from the Instituto de Astrofísica de Canarias (IAC) participate together with other institutions from Spain, Italy, Germany, Belgium, UK, and Mexico, has been able to measure the masses of the giant planets of the V1298 Tau system, just 20 million year old. Masses for such young giant planets had not been obtained previously, and this is the first evidence that these objects have already reached their final size at very early stages of…
As far as extrasolar planets go, ‘GJ 367 b’ is a featherweight. With half the mass of Earth, the newly discovered planet is one of the lightest among the nearly 5000 exoplanets known today. It takes the extrasolar planet approximately eight hours to orbit its parent star. With a diameter of just over 9000 kilometres, GJ 367 b is slightly larger than Mars. The planetary system is located just under 31 light years from Earth and is thus ideal for…
Light is an electromagnetic wave: it consists of oscillating electric and magnetic fields propagating through space. Every wave is characterized by its frequency, which refers to the number of oscillations per second, measured in Hertz (Hz). Our eyes can detect frequencies between 400 and 750 trillion Hz (or terahertz, THz), which define the visible spectrum. Light sensors in cell phone cameras can detect frequencies down to 300 THz, while detectors used for internet connections through optical fibers are sensitive to…
Reseachers at MPQ have just demonstrated a new technique for digital holography using two interfering frequency combs. They can now record thousands of holograms in all colours of the rainbow. Everybody has seen holograms, on a bank note, a passport or in Star Wars. Holography is a powerful technique of photography of a light field without a lens for 3D imaging and display. Now, scientists at the Max-Planck Institute of Quantum Optics move holography forward by implementing it with optical…
The quantum world and our everyday world are very different places. In a publication that appeared as the “Editor’s Suggestion” in Physical Review A this week, UvA physicists Jasper van Wezel and Lotte Mertens and their colleagues investigate how the act of measuring a quantum particle transforms it into an everyday object. Quantum mechanics is the theory that describes the tiniest objects in the world around us, ranging from the constituents of single atoms to small dust particles. This microscopic…
Team studied thermal inertia to understand how rock layers were formed. As part of a team of collaborators from Northern Arizona University and Johns Hopkins University, NAU PhD candidate Ari Koeppel recently discovered that water was once present in a region of Mars called Arabia Terra. Arabia Terra is in the northern latitudes of Mars. Named in 1879 by Italian astronomer Giovanni Schiaparelli, this ancient land covers an area slightly larger than the European continent. Arabia Terra contains craters, volcanic…
What happens on Earth doesn’t stay on Earth. Using observations from NASA’s ICON mission, scientists presented the first direct measurements of Earth’s long-theorized dynamo on the edge of space: a wind-driven electrical generator that spans the globe 60-plus miles above our heads. The dynamo churns in the ionosphere, the electrically charged boundary between Earth and space. It’s powered by tidal winds in the upper atmosphere that are faster than most hurricanes and rise from the lower atmosphere, creating an electrical environment that…
Research findings to open way to new applications in quantum technology. Researchers at Heidelberg University have succeeded in their aim of not only changing the strength but also the nature of the interaction between microscopic quantum magnets, known as spins. Instead of falling into a state of complete disorder, the especially prepared magnets can maintain their original orientation for a long period. With these findings, the Heidelberg physicists have successfully demonstrated a programmable control of spin interactions in isolated quantum…
New study shows the boundary between time moving forward and backward may blur in quantum mechanics. A team of physicists at the Universities of Bristol, Vienna, the Balearic Islands and the Institute for Quantum Optics and Quantum Information (IQOQI-Vienna) has shown how quantum systems can simultaneously evolve along two opposite time arrows – both forward and backward in time. The study, published in the latest issue of Communications Physics, necessitates a rethink of how the flow of time is understood…
A jet from a newly formed star flares into the shining depths of reflection nebula NGC 1977 in this Hubble image. The jet (the orange object at the bottom center of the image) is being emitted by the young star Parengo 2042, which is embedded in a disk of debris that could give rise to planets. The star powers a pulsing jet of plasma that stretches over two light-years through space, bending to the north in this image. The gas…
Fragile orbits of seven exoplanets could survive only limited early bombardment. Seven Earth-sized planets orbit the star TRAPPIST-1 in near-perfect harmony, and U.S. and European researchers have used that harmony to determine how much physical abuse the planets could have withstood in their infancy. “After rocky planets form, things bash into them,” said astrophysicist Sean Raymond of the University of Bordeaux in France. “It’s called bombardment, or late accretion, and we care about it, in part, because these impacts can…
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