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Quantum systems learn joint computing

https://www.mpg.de/16404654/quantum-systems-learn-joint-computing

Today’s quantum computers contain up to several dozen memory and processing units, the so-called qubits. Severin Daiss, Stefan Langenfeld, and colleagues from the Max Planck Institute of Quantum Optics in Garching have successfully interconnected two such qubits located in different labs to a distributed quantum computer by linking the qubits with a 60-meter-long optical fiber. Over such a distance they realized a quantum-logic gate – the basic building block of a quantum computer. It makes the system the worldwide first prototype of a distributed quantum computer.
The modules reside in different laboratories of the same building and are connected

Cosmic weight watching reveals black hole-galaxy history

https://www.mpg.de/4440749/weighing_black_hole_galaxy

Using state-of-the-art technology and sophisticated data analysis tools, a team of astronomers from the Max Planck Institute for Astronomy has developed a new and powerful technique to directly determine the mass of an active galaxy at a distance of nearly 9 billion light-years from Earth. This pioneering method promises a new approach for studying the co-evolution of galaxies and their central black holes. First results indicate that for galaxies, the best part of cosmic history was not a time of sweeping changes.
value of the galaxy’s central black hole, which the researchers measured from the same

Migratory birds have lighter-colored feathers

https://www.mpg.de/17954481/1203-orni-migratory-birds-have-lighter-colored-feathers-154562-x

Migratory birds are specially adapted to find their way over extreme distances that represent remarkable tests of endurance. Now, researchers of the Max Planck Institute for Ornithology in Seewiesen and colleagues have discovered an unexpected way that migratory birds keep their cool during such arduous journeys: lighter-colored feathers.
Around that same time, the researchers came across studies by others showing that

Protecting ourselves against Internet manipulation

https://www.mpg.de/16408566/0211-bild-citizens-versus-the-internet-how-can-we-protect-ourselves-against-manipulation-fake-news-and-other-digital-challenges-149835-x

In the online world users’ attention is a precious currency, and online environments are designed to capture and steer that attention. Yet users and legislators currently have little to say in how these environments are regulated and controlled; How can we respond to these challenges of the digital age and how might the design of the online world be improved? A team of researchers addressed these questions from the perspective of behavioral science and now propose some answers.
At the same time, it presents both individuals and societies with major challenges