БЛОГ

Archive for the ‘computing’ category: Page 545

May 27, 2020

Novel insight reveals topological tangle in unexpected corner of the universe

Posted by in categories: biological, computing, cosmology, mathematics, nanotechnology, particle physics

Just as a literature buff might explore a novel for recurring themes, physicists and mathematicians search for repeating structures present throughout nature.

For example, a certain geometrical structure of knots, which scientists call a Hopfion, manifests itself in unexpected corners of the universe, ranging from , to biology, to cosmology. Like the Fibonacci spiral and the golden ratio, the Hopfion pattern unites different scientific fields, and deeper understanding of its structure and influence will help scientists to develop transformative technologies.

Continue reading “Novel insight reveals topological tangle in unexpected corner of the universe” »

May 26, 2020

New 5G switches mean battery life improvements, higher bandwidth and speeds

Posted by in categories: computing, internet, mobile phones

The 5G revolution has begun, and the first lines of phones that can access the next generation of wireless speeds have already hit the shelves. Researchers at The University of Texas at Austin and the University of Lille in France have built a new component that will more efficiently allow access to the highest 5G frequencies in a way that increases devices’ battery life and speeds up how quickly we can do things like stream high-definition media.

Smartphones are loaded with switches that perform a number of duties. One major task is jumping between networks and spectrum frequencies: 4G, Wi-Fi, LTE, Bluetooth, etc. The current radio-frequency (RF) switches that perform this task are always running, consuming precious processing power and battery life.

“The switch we have developed is more than 50 times more energy efficient compared to what is used today,” said Deji Akinwande, a professor in the Cockrell School of Engineering’s Department of Electrical and Computer Engineering who led the research. “It can transmit an HDTV stream at a 100 gigahertz frequency, and that is unheard of in broadband switch technology.”

May 26, 2020

Are We In A Simulation? | Why You Are Not Real

Posted by in categories: computing, neuroscience

Eric Klien


Simulation theory points out that we might be living in a giant computer simulation. Exponential technological growth and how far we’ve already come in so little time are big indicators that we can’t possibly imagine what the future of humanity would look like in 100 years, or better yet, 1,000 years!
Will we be able to create simulations so indistinguishable from reality that the characters will not be aware that they are being simulated? Today on Cognitive Culture, you’ll learn about why you’re not real!

Continue reading “Are We In A Simulation? | Why You Are Not Real” »

May 26, 2020

Samsung develops new security chip for smartphones

Posted by in categories: computing, mobile phones, security

Samsung has launched a new secure element (SE) chip to protect private and sensitive data on mobile devices, the company said on Tuesday.

The chip, dubbed S3FV9RR, will be offered as a standalone turnkey with security software, Samsung said.

Common Criteria, which certifies the security level of IT products from EAL0 to EAL7 with seven being the most secure, gave the security chip a Common Criteria Evaluation Assurance Level (CC EAL) 6+ certification.

May 26, 2020

Quantum Computing: Atomic Clocks Make for Longer-Lasting Qubits

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

Cesium atoms and laser traps offer a more robust type of quantum computer.

May 25, 2020

Counterintuitive Superconductivity and Quantum Computing Breakthrough: Using Pressure to Make Liquid Magnetism

Posted by in categories: computing, quantum physics

Using two flat-top diamonds and a lot of pressure, scientists have forced a magnetic crystal into a spin liquid state, which may lead to insights into high-temperature superconductivity and quantum computing.

It sounds like a riddle: What do you get if you take two small diamonds, put a small magnetic crystal between them and squeeze them together very slowly?

The answer is a magnetic liquid, which seems counterintuitive. Liquids become solids under pressure, but not generally the other way around. But this unusual pivotal discovery, unveiled by a team of researchers working at the Advanced Photon Source (APS), a U.S. Department of Energy (DOE) Office of Science User Facility at DOE’s Argonne National Laboratory, may provide scientists with new insight into high-temperature superconductivity and quantum computing.

May 24, 2020

World’s First AMD-Only Linux Laptop Officially Announced

Posted by in categories: computing, mobile phones

TUXEDO Computers announces the TUXEDO Book BA15.

May 24, 2020

Physicists exploring use of Blu-ray disc lasers to kill COVID-19, other viruses

Posted by in categories: biotech/medical, computing

A new weapon in the arsenal against the coronavirus may be sitting in your home entertainment console. A team led by physicist Chris Barty of the University of California, Irvine is researching the use of diodes from Blu-ray digital video disc devices as deep-ultraviolet laser photon sources to rapidly disinfect surfaces and the indoor air that swirls around us.

Barty, UC Irvine distinguished professor of physics & astronomy, said that such UV light sterilizers would be cheap compared to current medical- and scientific-grade systems and that it’d be possible to deploy them almost anywhere.

“If these sources are successful, I think you could build them into a mask and clean the air that’s coming in and out of you,” he said. “Or you could set these things up in the air circulation ducts of major buildings, and the airflow that goes through could be sterilized.”

May 23, 2020

Researchers Turn a Single Atom Into a Quantum Engine and a Quantum Fridge

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

Here’s a new chapter in the story of the miniaturization of machines: researchers in a laboratory in Singapore have shown that a single atom can function as either an engine or a fridge. Such a device could be engineered into future computers and fuel cells to control energy flows.” Think about how your computer or laptop has a lot of things inside it that heat up. Today you cool that with a fan that blows air. In nanomachines or quantum computers, small devices that do cooling could be something useful,” says Dario Poletti from the Singapore University of Technology and Design (SUTD).

This work gives new insight into the mechanics of such devices. The work is a collaboration involving researchers at the Centre for Quantum Technologies (CQT) and Department of Physics at the National University of Singapore (NUS), SUTD and at the University of Augsburg in Germany. The results were published in the peer-reviewed journal npj Quantum Information on 1 May.

Engines and refrigerators are both machines described by thermodynamics, a branch of science that tells us how energy moves within a system and how we can extract useful work. A classical engine turns energy into useful work. A refrigerator does work to transfer heat, reducing the local temperature. They are, in some sense, opposites.

May 23, 2020

New chip brings ultra-low power Wi-Fi connectivity to IoT devices

Posted by in categories: computing, habitats, internet, media & arts, wearables

More portable, fully wireless smart home setups. Lower power wearables. Batteryless smart devices. These could all be made possible thanks to a new ultra-low power Wi-Fi radio developed by electrical engineers at the University of California San Diego.

The device, which is housed in a chip smaller than a grain of rice, enables Internet of Things (IoT) devices to communicate with existing Wi-Fi networks using 5,000 times less than today’s Wi-Fi radios. It consumes just 28 microwatts of power. And it does so while transmitting data at a rate of 2 megabits per second (a connection fast enough to stream music and most YouTube videos) over a range of up to 21 meters.

The team will present their work at the ISSCC 2020 conference Feb. 16 to 20 in San Francisco.