An international team of researchers studying data from China’s Dark Matter Particle Explorer (DAMPE) has measured cosmic ray protons up to the energy of 100 TeV with high precision for the first time. In their paper published in the journal Science Advances, the group describes the research they have been conducting on data received from the satellite and what they have…
Tag: Science Advances
Quantum Hall-based superconducting interference device
In a recent report published on Science Advances, Andrew Seredinski and co-workers presented a graphene-based Josephson junction with dedicated side gates fabricated from the same sheet of graphene as the junction itself. The interdisciplinary research team in the departments of physics, astronomy and advanced materials in the U.S. and Japan found the side gates to be highly efficient, allowing them to…
Holography and criticality in matchgate tensor networks
Tensor networks take a central role in quantum physics as they can provide an efficient approximation to specific classes of quantum states. The associated graphical language can also easily describe and pictorially reason about quantum circuits, channels, protocols and open systems. In a recent study, A. Jahn and a research team in the departments of complex quantum systems, materials and energy…
Researchers Build a Heat Shield Just 10 Atoms Thick To Protect Electronic Devices
An anonymous reader quotes a report from Phys.Org: Excess heat given off by smartphones, laptops and other electronic devices can be annoying, but beyond that it contributes to malfunctions and, in extreme cases, can even cause lithium batteries to explode. To guard against such ills, engineers often insert glass, plastic or even layers of air as insulation to prevent heat-generating components…
Two-dimensional (2-D) nuclear magnetic resonance (NMR) spectroscopy with a microfluidic diamond quantum sensor
Quantum sensors based on nitrogen-vacancy (NV) centers in diamond are a promising detection mode for nuclear magnetic resonance spectroscopy due to their micron-scale detection volume and noninductive-based sample detection requirements. A challenge that exists is to sufficiently realize high spectral resolution coupled with concentration sensitivity for multidimensional NMR analysis of picolitre sample volumes. In a new report now on Science Advances,…
New toolkit for photonics: Quantum simulation by light radio
Intensive research is being carried out on quantum simulators: they promise to precisely calculate the properties of complex quantum systems, when conventional and even supercomputers fail. In a cooperative project, theorists from the the Max Planck Institute of Quantum Optics in Garching anf the Consejo Superior de Investigaciones Científicas (CSIC) have now developed a new toolbox for quantum simulators and published…
Imaging of exotic quantum particles as building blocks for quantum computing
Researchers at the University of Illinois at Chicago, in collaboration with their colleagues at the University of Hamburg in Germany, have imaged an exotic quantum particle—called a Majorana fermion—that can be used as a building block for future qubits and eventually the realization of quantum computers. Their findings are reported in the journal Science Advances. …
Quantum interference in the service of information technology
Scientists from the Faculty of Physics, University of Warsaw, in collaboration with the University of Oxford and NIST, have shown that quantum interference enables processing of large sets of data faster and more accurately than with standard methods. Their studies may boost applications of quantum technologies in artificial intelligence, robotics and medical diagnostics, for example. The results of this work have…
Himalayan glaciers melting double fast since 2000
A new study, which used declassified images from spy satellites, shows that glaciers in the Himalayas melted twice as fast from 2000 to 2016 as they did from 1975 to 2000. Source: https://earthsky.org/earth/himalayan-glaciers-melting-double-fast-since-2000…
Table salt compound spotted on Jupiter’s moon Europa
Europa has an ocean, hidden beneath its icy crust. The discovery of sodium chloride – aka table salt – on the moon’s surface might be strong evidence that Europa’s ocean is very similar to Earth’s. Source: https://earthsky.org/space/europa-sodium-chloride-table-salt-ocean…