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Archive for the ‘computing’ category: Page 238

Apr 20, 2023

Science and Math News

Posted by in categories: biological, computing, mathematics, physics, science

Welcome back to Instagram. Sign in to check out what your friends, family & interests have been capturing & sharing around the world.

Apr 19, 2023

Embracing variations: Physicists first to analyze noise in Lambda-type quantum memory

Posted by in categories: computing, particle physics, quantum physics, security

In the future, communications networks and computers will use information stored in objects governed by the microscopic laws of quantum mechanics. This capability can potentially underpin communication with greatly enhanced security and computers with unprecedented power. A vital component of these technologies will be memory devices capable of storing quantum information to be retrieved at will.

Virginia Lorenz, a professor of physics at the University of Illinois Urbana-Champaign, studies Lambda-type optical quantum , a promising technology that relies on light interacting with a large group of atoms. She is developing a device based on hot metallic vapor with graduate student Kai Shinbrough.

As the researchers work towards a practical device, they are also providing some of the first theoretical analyses of Lambda-type devices. Most recently, they reported the first variance-based sensitivity analysis describing the effects of experimental noise and imperfections in Physical Review A.

Apr 19, 2023

Algorithms Simulate Infinite Quantum System on Finite Quantum Computers

Posted by in categories: computing, information science, quantum physics

Year 2021 😗😁


Researchers say algorithms can simulate an infinite quantum system on finite quantum computers in interesting advance for quantum tech.

Apr 18, 2023

Dr. Charles Tahan, Ph.D. — Director, National Quantum Coordination Office — OSTP, The White House

Posted by in categories: computing, government, policy, quantum physics

Accelerating Leadership In Quantum Information Sciences — Dr. Charles Tahan, Ph.D., Assistant Director for Quantum Information Science (QIS); Director, National Quantum Coordination Office, Office of Science and Technology Policy, The White House.


Dr. Charles Tahan, Ph.D. is the Assistant Director for Quantum Information Science (QIS) and the Director of the National Quantum Coordination Office (NQCO) within the White House Office of Science and Technology Policy (https://www.quantum.gov/nqco/). The NQCO ensures coordination of the National Quantum Initiative (NQI) and QIS activities across the federal government, industry, and academia.

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Apr 18, 2023

The Data Center Exchange

Posted by in category: computing

Listen to the data center exchange on spotify.

Apr 18, 2023

Researchers Produce Entangled Photons Entirely On-Chip

Posted by in categories: computing, quantum physics

A new approach shrinks quantum photonic technology to the size of a Euro coin.

Apr 18, 2023

A luddite link to nano-terrorists

Posted by in categories: computing, nanotechnology, terrorism

An older article but something the world is facing just like in certain sci-fi movies.


The reference publication of the movement in the 80s, the Earth First journal, featured a column called Ask Ned Ludd, in reference to the mythical character that gave name to the luddites. Jones thinks that neo-luddites are in fact misreading the original luddites, but he believes that understanding the difference between the old and modern ones tells us a lot about the ideology of the latter.

“Luddites were not anti-technology: they were skilled craftsmen, involved in a labour movement aimed at keeping their machines and their jobs,” he says. “That’s very different from the neo-luddites ideas of relinquishing civilisation and [of] nature as the supreme good.” Jones thinks neo-luddism is fed rather by “the idea of technology as a disembodied, transcendent, terrifying force outside the human”, which emerged in the mid 20th century, with the bomb and the rise of large-scale computing.

Apr 17, 2023

Research provides new insight into quantum effects in lithium sulfur batteries

Posted by in categories: computing, mobile phones, quantum physics, sustainability

Lithium-ion batteries power our lives.

Because they are lightweight, have and are rechargeable, the batteries power many products, from laptops and cell phones to electric cars and toothbrushes.

However, current have reached the limit of how much energy they can store. That has researchers looking for more powerful and cheaper alternatives.

Apr 17, 2023

Study demonstrates the non-volatile electrical control of a 2D magnetic insulator using a thin ferroelectric polymer

Posted by in categories: computing, materials

Two-dimensional (2D) magnetic insulators, which are electrically insulating materials with long-range magnetic order, could be used to fabricate compact magneto-electric or magneto-optical devices. Efficiently and reliably controlling the properties of these atomically thin magnets through electrical means, however, has so far proved to be highly challenging, as the materials’ charge levels often cannot be largely adjusted and their crystal fields cannot be considerably altered using external electric fields.

Researchers at University of Maryland and their collaborators recently devised a new strategy that could be used to efficiently control 2D magnetic insulators. This strategy, outlined in a paper in Nature Electronics, relies on the use of a thin ferroelectric polymer that can modulate the 2D materials’ magnetic responses.

“When it comes to , people are primarily pursuing a smaller form factor (relating to higher integration density, which means more devices can be integrated on the unit area/volume of a chip), lower energy consumption, and higher performance,” Cheng Gong, the lead principal investigator for the study, told Tech Xplore.

Apr 17, 2023

Quantum light source goes fully on-chip, bringing scalability to the quantum cloud

Posted by in categories: computing, internet, quantum physics

An international team of researchers from Leibniz University Hannover (Germany), the University of Twente (Netherlands), and the start-up company QuiX Quantum has presented an entangled quantum light source fully integrated for the first time on a chip. The results of the study were published in the journal Nature Photonics.

“Our breakthrough allowed us to shrink the source size by a factor of more than 1,000, allowing reproducibility, stability over a longer time, scaling, and potentially mass-production. All these characteristics are required for real-world applications such as ,” says Prof. Dr. Michael Kues, head of the Institute of Photonics, and board member of the Cluster of Excellence PhoenixD at Leibniz University Hannover.

Quantum bits () are the basic building blocks of quantum computers and the quantum internet. Quantum light sources generate light quanta (photons) that can be used as . On-chip photonics has become a leading platform for processing optical quantum states as it is compact, robust, and allows to accommodate and arrange many elements on a . Here, light is directed on the chip through extremely compact structures, which are used to build photonic quantum computing systems. These are already accessible today through the cloud. Scalably implemented, they could solve tasks that are inaccessible to conventional computers due to their limited computing capacities. This superiority is referred to as quantum advantage.