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Category: computing – Page 470
The central principle of superconductivity is that electrons form pairs. But can they also condense into foursomes? Recent findings have suggested they can, and a physicist at KTH Royal Institute of Technology today published the first experimental evidence of this quadrupling effect and the mechanism by which this state of matter occurs.
Reporting today in Nature Physics, Professor Egor Babaev and collaborators presented evidence of fermion quadrupling in a series of experimental measurements on the iron-based material, Ba1−x Kx Fe2As2. The results follow nearly 20 years after Babaev first predicted this kind of phenomenon, and eight years after he published a paper predicting that it could occur in the material.
The pairing of electrons enables the quantum state of superconductivity, a zero-resistance state of conductivity which is used in MRI scanners and quantum computing. It occurs within a material as a result of two electrons bonding rather than repelling each other, as they would in a vacuum. The phenomenon was first described in a theory by, Leon Cooper, John Bardeen and John Schrieffer, whose work was awarded the Nobel Prize in 1972.
Integrated And Cross-Disciplinary Research Focused on Diagnosing, Treating And Curing Cancers — Dr. Antonio Giordano MD, PhD, President & Founder, Sbarro Health Research Organization.
Dr. Antonio Giordano, MD, Ph.D., (https://www.drantoniogiordano.com/) is President and Founder of the Sbarro Health Research Organization (https://www.shro.org/), which conducts research to diagnose, treat and cure cancer, but also has diversified into research beyond oncology, into the areas of cardiovascular disease, diabetes and other chronic illnesses.
Dr. Giordano is also a Professor of Molecular Biology at Temple University in Philadelphia, a ‘Chiara fama’ Professor in the Department of Pathology & Oncology at the University of Siena, Italy, and Director of the Sbarro Institute for Cancer Research and Molecular Medicine, and the Center for Biotechnology, at Temple’s College of Science & Technology.
The central principle of superconductivity is that electrons form pairs. But can they also condense into foursomes? Recent findings have suggested they can, and a physicist at KTH Royal Institute of Technology today published the first experimental evidence of this quadrupling effect and the mechanism by which this state of matter occurs.
Reporting in Nature Physics, Professor Egor Babaev and collaborators presented evidence of fermion quadrupling in a series of experimental measurements on the iron-based material, Ba1−xKxFe2As2. The results follow nearly 20 years after Babaev first predicted this kind of phenomenon, and eight years after he published a paper predicting that it could occur in the material.
The pairing of electrons enables the quantum state of superconductivity, a zero-resistance state of conductivity which is used in MRI scanners and quantum computing. It occurs within a material as a result of two electrons bonding rather than repelling each other, as they would in a vacuum. The phenomenon was first described in a theory by, Leon Cooper, John Bardeen and John Schrieffer, whose work was awarded the Nobel Prize in 1972.
Alibaba Group Holding Ltd. unveiled a new server chip that’s based on advanced 5-nanometer technology, marking a milestone in China’s pursuit of semiconductor self-sufficiency.
The Chinese tech giant’s newest chip is based on micro-architecture provided by the SoftBank Group Corp.-owned Arm Ltd., according to a statement Tuesday. Alibaba, which is holding its annual cloud summit in Hangzhou, said the silicon will be put to use in its own data centers in the “near future” and will not be sold commercially, at least for now.
“Customizing our own server chips is consistent with our ongoing efforts toward boosting our computing capabilities with better performance and improved energy efficiency,” said Jeff Zhang, president of Alibaba Cloud Intelligence and head of Alibaba’s research arm Damo Academy. “We plan to use the chips to support current and future businesses across the Alibaba Group ecosystem.”
Magnetic solids can be demagnetized quickly with a short laser pulse, and there are already so-called HAMR (Heat Assisted Magnetic Recording) memories on the market that function according to this principle. However, the microscopic mechanisms of ultrafast demagnetization remain unclear. Now, a team at HZB has developed a new method at BESSY II to quantify one of these mechanisms and they have applied it to the rare-earth element Gadolinium, whose magnetic properties are caused by electrons on both the 4f and the 5d shells. This study completes a series of experiments done by the team on nickel and iron-nickel alloys. Understanding these mechanisms is useful for developing ultrafast data storage devices.
New materials should make information processing more efficient, for example, through ultrafast spintronic devices that store data with less energy input. But to date, the microscopic mechanisms of ultrafast demagnetization are not fully understood. Typically, the process of demagnetization is studied by sending an ultrashort laser pulse to the sample, thereby heating it up, and then analyzing how the system evolves in the first picoseconds afterward.
Arm is releasing new chip design offerings in the internet of things (IoT), virtual hardware, and 5G sectors.
Cambridge, United Kingdom-based Arm designs the architecture that other licensed chip makers use to build their chips. Arm likes to make it easier for those licensees to come up with their applications and create a foundation for an IoT economy.
So the company said its Arm Total Solutions for IoT now delivers a full-stack solution to significantly accelerate the development and return-on-investment for IoT chip products. And Arm Virtual Hardware removes the need to develop on physical silicon, enabling software and hardware co-design and accelerating product design by up to two years, the company claimed.
IoT Evolution World magazine announced today the recipients of their 2021 IoT Edge Computing Excellence Awards. This award recognizes the companies emerging as leaders in the growing edge computing space…
“Innovation in edge computing is separating the good from the great, pretenders and contenders,” said Moe Nagle, Editorial Director for IoT Evolution. “In selecting the winners, it is easy to see why these companies and their solutions have risen to the top.”
A new research paper written by a team of academics and computer scientists from Spain and Austria has demonstrated that it’s possible to use Facebook’s targeting tools to deliver an ad exclusively to a single individual if you know enough about the interests Facebook’s platform assigns them.
The paper — entitled “Unique on Facebook: Formulation and Evidence of (Nano)targeting Individual Users with non-PII Data” — describes a “data-driven model” that defines a metric showing the probability a Facebook user can be uniquely identified based on interests attached to them by the ad platform.
The researchers demonstrate that they were able to use Facebook’s Ads manager tool to target a number of ads in such a way that each ad only reached a single, intended Facebook user.
Research from Inmarsat has found that investment in the IoT is set to overtake cloud computing and other digital transformation technologies.