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Archive for the ‘computing’ category: Page 179

Aug 30, 2023

A new protocol to reliably demonstrate quantum computational advantage

Posted by in categories: computing, quantum physics

Quantum computers, devices that perform computations by exploiting quantum mechanical phenomena, have the potential to outperform classical computers on some tasks and optimization problems. In recent years, research teams at both academic institutions and IT companies have been trying to realize this predicted better performance for specific problems, which is broadly known as “quantum advantage.”

To reliably demonstrate that a quantum computer performs better than a classical computer, one should, among other things, collect inside the computer and compare them to those collected in . Doing this, however, can sometimes be challenging, due to the distinct nature of these two types of devices.

Researchers at NIST/University of Maryland, UC Berkeley, Caltech and other institutes in the United States recently introduced and tested a new protocol that could help to reliably validate the advantage of quantum computers. This protocol, introduced in Nature Physics, relies on mid-circuit measurements and a cryptographic technique.

Aug 29, 2023

Quantum simulator helps to unlock a major science mystery

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

A new study exemplifies how the strides made in quantum computing are now being harnessed to unlock the secrets of fundamental science.

Scientists at Duke University have harnessed the power of quantum-based methods to unravel a puzzling phenomenon related to light-absorbing molecules, according to a new study published in Nature Chemistry.

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Aug 29, 2023

Intel makes new chip more than double the power of others

Posted by in category: computing

In a bid to reduce data center power consumption, Intel has unveiled its new “Sierra Forest” chip with over double the power efficiency of other chips.

Intel has reported that its new chip, “Sierra Forest,” will have over double the efficiency for the same power consumption of other microchips. Designed as a new data center chip, Intel’s new double-efficiency chip is scheduled for release sometime in 2024, Reuters.

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Aug 29, 2023

Quantum device used to slow chemical reaction 100 billion times

Posted by in categories: chemistry, computing, quantum physics

A team of researchers has successfully simulated and” observed” a slow-motion chemical reaction at a billion times slower than “normal.”

For the first time ever, scientists have succeeded in slowing down (in simulation) a chemical reaction by around 100 billion times. Using a quantum computer, the researchers simulated and then “observed” the reaction in super slow motion.

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Aug 29, 2023

Memristors make versatile artificial synapses for neuromorphic computing

Posted by in categories: computing, mobile phones, neuroscience

Most modern computers – from primitive room-filling behemoths like the ENIAC to the smartphone in your pocket – are built according to a set of principles laid out by the mathematician John von Neumann in 1945. This von Neumann architecture, as it is known, incorporates many familiar elements, including a central processing unit, a memory for storing data and instructions, and input and output devices. Despite its ubiquity, though, von Neumann’s model is not the only way of building a computer, and for some applications, it is not the most desirable, either.

One emerging alternative is known as neuromorphic computing. As the name implies, neuromorphic computers are inspired by the architecture of the human brain and use highly connected artificial neurons and artificial synapses to simulate the brain’s structure and functions. For researchers like Le Zhao of China’s Qilu University of Technology, this neuromorphic model offers a fantastic opportunity to develop a new paradigm for computing – as long as we can develop artificial neurons and synapses that have the right properties.

In a recent paper published in Materials Futures, Zhao and colleagues describe how to use a memristor – essentially a switch that “remembers” which electric state it was in, even after its power is turned off – to emulate the function of a synapse in the brain. Here, he explains the team’s goals and plans.

Aug 29, 2023

Superconduction Breakthrough: Scientists Discover New State of Quantum Matter

Posted by in categories: computing, quantum physics

Researchers from Cornell University have identified a new state of matter in candidate topological superconductors, a discovery that may have far-reaching implications for both condensed matter physics and the fields of quantum computing.

Performing computation using quantum-mechanical phenomena such as superposition and entanglement.

Aug 28, 2023

Scientists Dramatically Extend Cell Lifespan in Anti-Aging Breakthrough

Posted by in categories: bioengineering, biotech/medical, computing, ethics, life extension

“A major highlight of the work is our approach to achieve longevity: using computers to simulate the natural aging system and guide the design and rational engineering of the system to extend lifespan,” Hao told Motherboard. “This is the first time this computationally-guided engineering-based approach has been used in aging research. Our model simulations actually predicted that an oscillator can double the lifespan of the cell, but we were happily surprised that it actually did in experiments.”

The study is part of a growing corpus of mind-boggling research that may ultimately stave off some of the unpleasant byproducts of aging until later in life, while boosting life expectancy in humans overall. Though countless hurdles have to be cleared before these treatments become a reality, Hao thinks his team’s approach could eventually be applied to humans.

“I don’t see why it cannot be applied to more complex organisms,” Hao said. “If it is to be introduced to humans, then it will be a certain form of gene therapy. Of course it is still a long way ahead and the major concerns are on ethics and safety.”

Aug 28, 2023

Quantum computer unveils atomic dynamics of light-sensitive molecules

Posted by in categories: chemistry, computing, quantum physics

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 , and addresses a long-standing, fundamental question in chemistry critical to processes such as photosynthesis, vision and photocatalysis. It is also an example of how advances in quantum computing are being used to investigate fundamental science.

The results appear online August 28 in the journal Nature Chemistry.

Aug 28, 2023

Discovery puts a magnetic spin on neuromorphic computing

Posted by in categories: computing, materials

The word “fractals” might inspire images of psychedelic colors spiraling into infinity in a computer animation. An invisible, but powerful and useful, version of this phenomenon exists in the realm of dynamic magnetic fractal networks.

Dustin Gilbert, assistant professor in the Department of Materials Science and Engineering, and colleagues have published new findings in the behavior of these networks—observations that could advance neuromorphic computing capabilities.

Their research is detailed in their article “Skyrmion-Excited Spin-Wave Fractal Networks,” cover story for the August 17, 2023, issue of Advanced Materials.

Aug 28, 2023

Samsung teases a jaw-dropping 256TB SSD

Posted by in categories: computing, electronics

Samsung is the world’s biggest memory chip maker, and the company consistently keeps pushing the boundaries of technology to bring cutting-edge memory products. This time, however, the tech giant has outdone itself by developing a 256TB SSD. Yes, you’ve read it correctly. This is the first 256TB SSD in the industry, and Samsung has teased the latest product at Flash Memory Summit (FMS) 2023 in California, USA.

Samsung announces the world’s first 256TB SSD

As you might imagine, Samsung is aiming this 256TB SSD primarily at hyper-scale data centers. According to Samsung, it uses the 3D QLC NAND technology and consumes approximately seven times less power than stacking eight 32TB SSDs. The tech giant hasn’t revealed any other details about this flash drive. However, considering that it is made for data centers, it most likely has an ESDFF or NGSFF form factor.