Quantum physics has allowed for the creation of sensors far surpassing the precision of classical devices. Now, several studies in Nature show that the precision of these quantum sensors can be significantly improved using entanglement produced by finite-range interactions. Innsbruck researchers led by Christian Roos were able to demonstrate this enhancement using entangled ion-chains with up to 51 particles. Metrological institutions around the world administer our time, using atomic clocks based on the natural oscillations of atoms. These clocks, pivotal…

UC Santa Barbara quantum scientists to conduct NSF-funded research to pursue quantum-scale sensor technologies. At the atomic and subatomic scales exist behaviors that have vast potential to enhance how we see and interact with the world, by improving current technologies and potentially giving rise to new ones. The main advantage to be gained from the realm of quantum sensing is its extreme sensitivity and accuracy, able to capture the faintest of signals and measure at the smallest of scales. Now,…

Joint project develops open and certifiable sensor platform for IoT applications. Digitization is increasingly permeating all aspects of our lives. Thanks to the “Internet of Things” (IoT), objects can now be connected in ways that simplify our daily routines in many ways. However, there are significant risks associated with handling private data and devices used in sensitive settings. In the SASPIT project, a consortium led by the German Research Center for Artificial Intelligence (DFKI) aims to develop a certifiable IoT…

Experiments promote a curious flipside of decaying monopoles: a reality where particle physics is quite literally turned on its head. The field of quantum physics is rife with paths leading to tantalising new areas of study, but one rabbit hole offers a unique vantage point into a world where particles behave differently—through the proverbial looking glass. Dubbed the ‘Alice ring’ after Lewis Carroll’s world-renowned stories on Alice’s Adventures in Wonderland, the appearance of this object verifies a decades-old theory on…

The carbon material graphene has excellent electronic properties. But are they also stable enough to be useful in practice? Calculations from TU Wien say: Yes. Nothing in the world is perfect. This is also true in materials research. In computer simulations, one often represents a system in a highly idealized way; for example, one calculates the properties that an absolutely perfect crystal would have. In practice, however, we always have to deal with additional effects – with defects in the…

A flexible, language-based approach proves surprisingly effective at solving intractable problems in materials science. With their intricate arrangements and dynamic functionalities, proteins perform a plethora of biological tasks by employing unique arrangements of simple building blocks where geometry is key. Translating this nearly limitless library of arrangements into their respective functions could let researchers design custom proteins for specific uses. In Journal of Applied Physics, from AIP Publishing, Markus Buehler of the Massachusetts Institute of Technology combined attention neural networks,…

Remote-sensing data will complement Juno spacecraft’s in situ observations. The Space Telescope Science Institute recently awarded Southwest Research Institute a large project to use the Hubble and James Webb telescopes to remotely study Io, the most volcanically active body in the solar system. The study will complement the upcoming flybys of the Jupiter moon by NASA’s Juno spacecraft and will provide insights into Io’s contributions to the plasma environment around Jupiter. Large Hubble projects request 75 orbits or more; this…

A quantum computer slowed simulated molecular quantum effects by a billion times, allowing researchers to directly measure them for the first time. Researchers at Duke University have implemented a quantum-based method to observe a quantum effect in the way light-absorbing molecules interact with incoming photons. Known as a conical intersection, the effect puts limitations on the paths molecules can take to change between different configurations. The observation method makes use of a quantum simulator, developed from research in quantum computing,…

National University of Singapore (NUS) physicists have developed a technique to precisely control the alignment of supermoiré lattices by using a set of golden rules, paving the way for the advancement of next generation moiré quantum matter. Moiré patterns are formed when two identical periodic structures are overlaid with a relative twist angle between them or two different periodic structures but overlaid with or without twist angle. The twist angle is the angle between the crystallographic orientations of the two…

New experimental research for the first time measures the speed of molecular charge migration. To discover how light interacts with molecules, the first step is to follow electron dynamics, which evolve at the attosecond timescale. The dynamics of this first step have been called charge migration (CM). CM plays a fundamental role in chemical reactions and biological functions associated with light–matter interaction. For years, visualizing CM at the natural timescale of electrons has been a formidable challenge in ultrafast science…

New origami-inspired sensors for soft robotics, wearables, and implantables. Researchers at the USC Viterbi School of Engineering looked to origami to create new sensors that could someday be employed to detect deformations in organs and also for use in wearables and soft robotics. Their paper, “High-Stretchability and Low-Hysteresis Strain Sensors Using Origami-Inspired 3D Mesostructures,” featured in Science Advances explains how USC researchers Hangbo Zhao, Xinghao Huang, Liangshu Liu, Yung Hsin Lin, Rui Feng, Yiyang Shen, and Yuanning Chang developed “stretchable…

A powerful satellite called XRISM (X-ray Imaging and Spectroscopy Mission) is set to provide astronomers with a revolutionary look at the X-ray sky. XRISM, led by JAXA (Japan Aerospace Exploration Agency) in collaboration with NASA and with contributions from ESA (European Space Agency), is scheduled to launch on an H-IIA rocket from Japan’s Tanegashima Space Center at 8:26 p.m. EDT on Sunday, Aug. 27 (9:26 a.m. on Monday, Aug. 28, in Japan). JAXA will stream the launch live on YouTube, with a broadcast in both English and Japanese starting at 7:55 p.m. EDT….

Approach is a step toward using single photons in quantum communication and information processing. A new approach to quantum light emitters generates a stream of circularly polarized single photons, or particles of light, that may be useful for a range of quantum information and communication applications. A Los Alamos National Laboratory team stacked two different, atomically thin materials to realize this chiral quantum light source. “Our research shows that it is possible for a monolayer semiconductor to emit circularly polarized…

In the form of DNA, nature shows how data can be stored in a space-saving and long-term manner. Würzburg’s chair of bioinformatics is developing DNA chips for computer technology. The hereditary molecule DNA can store a great deal of information over long periods of time in a very small space. For a good ten years, scientists have therefore been pursuing the goal of developing DNA chips for computer technology, for example for the long-term archiving of data. Such chips would…

Using ESO’s Very Large Telescope (VLT), astronomers have observed a large dark spot in Neptune’s atmosphere, with an unexpected smaller bright spot adjacent to it. This is the first time a dark spot on the planet has ever been observed with a telescope on Earth. These occasional features in the blue background of Neptune’s atmosphere are a mystery to astronomers, and the new results provide further clues as to their nature and origin. Large spots are common features in the…

… by learning from simulation. An innovative bimanual robot displays tactile sensitivity close to human-level dexterity using AI to inform its actions. The new Bi-Touch system, designed by scientists at the University of Bristol and based at the Bristol Robotics Laboratory, allows robots to carry out manual tasks by sensing what to do from a digital helper. The findings, published in IEEE Robotics and Automation Letters, show how an AI agent interprets its environment through tactile and proprioceptive feedback, and…