Menu

Blog

Archive for the ‘computing’ category: Page 429

Jun 22, 2021

Experimental brain implant instantly detects and relieves pain

Posted by in categories: biotech/medical, computing, neuroscience

Researchers from the New York University School of Medicine have developed a brain implant designed to detect pain sensations in real-time and deliver bursts of pain-relieving stimulation. The device is still deeply experimental but a new proof of concept study demonstrates it working effectively in rodent models.

In the world of brain implants the chasm between science fiction and reality is still quite vast. Apart from some exciting human tests showing paralyzed individuals with implants regaining a sense of touch or controlling computers with their mind, most research in the field is still nascent.

Animal tests have demonstrated incremental technological advances, such as pigs broadcasting neural activity or monkeys playing Pong. Now, an interface that can detect pain signals in one part of the brain and immediately respond with stimulation to another part of the brain targeted to relieve that pain has been developed.

Jun 22, 2021

U.S. chip foundry announces new manufacturing plant in Singapore

Posted by in categories: computing, transportation

A global semiconductor shortage is causing havoc, delaying car production and affecting operations at large consumer electronics manufacturers.

Jun 21, 2021

AMD & NVIDIA Graphics Card Prices Returning To Normal As GPU Supply & Availability Continues To Improve

Posted by in categories: computing, cryptocurrencies

AMD & NVIDIA graphics card prices are showing signs of recovery with improves supply & availability as we enter the third quarter of 2021.


AMD & NVIDIA graphics card prices are showing signs of recovery as we enter the third quarter of 2021. Based on 3DCenter’s latest report, it looks like the worst is over and GPU supply is returning to normal as seen on various European retailers.

AMD & NVIDIA Graphics Card Prices Returning To Normal As GPU Market Shows Signs of Recovery, Availability and Supply Improving Too

Continue reading “AMD & NVIDIA Graphics Card Prices Returning To Normal As GPU Supply & Availability Continues To Improve” »

Jun 20, 2021

Hubbles Main Computer Is Offline, And NASA Is Desperately Attempting to Fix It

Posted by in categories: computing, space

The Hubble Space Telescope is currently offline.

On Sunday 13 June, the telescope’s payload computer went offline, and engineers here on Earth are currently performing operations to get it up and running again.

The payload computer, as you might expect, is vital to Hubble’s continued science operations. It’s the ‘brains’ of the instrument, coordinating and controlling the various instruments with which Hubble is equipped. It also monitors the telescope for issues.

Jun 20, 2021

Quantum computers are already detangling natures mysteries

Posted by in categories: biological, chemistry, climatology, computing, information science, nuclear energy, particle physics, quantum physics, sustainability

As the number of qubits in early quantum computers increases, their creators are opening up access via the cloud. IBM has its IBM Q network, for instance, while Microsoft has integrated quantum devices into its Azure cloud-computing platform. By combining these platforms with quantum-inspired optimisation algorithms and variable quantum algorithms, researchers could start to see some early benefits of quantum computing in the fields of chemistry and biology within the next few years. In time, Google’s Sergio Boixo hopes that quantum computers will be able to tackle some of the existential crises facing our planet. “Climate change is an energy problem – energy is a physical, chemical process,” he says.

“Maybe if we build the tools that allow the simulations to be done, we can construct a new industrial revolution that will hopefully be a more efficient use of energy.” But eventually, the area where quantum computers might have the biggest impact is in quantum physics itself.

The Large Hadron Collider, the world’s largest particle accelerator, collects about 300 gigabytes of data a second as it smashes protons together to try and unlock the fundamental secrets of the universe. To analyse it requires huge amounts of computing power – right now it’s split across 170 data centres in 42 countries. Some scientists at CERN – the European Organisation for Nuclear Research – hope quantum computers could help speed up the analysis of data by enabling them to run more accurate simulations before conducting real-world tests. They’re starting to develop algorithms and models that will help them harness the power of quantum computers when the devices get good enough to help.

Jun 19, 2021

The World Relies on One Chip Maker in Taiwan, Leaving Everyone Vulnerable

Posted by in categories: computing, economics, mobile phones, transportation

Taiwan Semiconductor Manufacturing Co. ’s chips are everywhere, though most consumers don’t know it.

The company makes almost all of the world’s most sophisticated chips, and many of the simpler ones, too. They’re in billions of products with built-in electronics, including iPhones, personal computers and cars—all without any obvious sign they came from TSMC, which does the manufacturing for better-known companies that design them, like Apple Inc. and Qualcomm Inc.

TSMC has emerged over the past several years as the world’s most important semiconductor company, with enormous influence over the global economy. With a market cap of around $550 billion, it ranks as the world’s 11th most valuable company.

Jun 19, 2021

Compact quantum computer for server centers

Posted by in categories: computing, engineering, quantum physics, space

Quantum computers developed to date have been one-of-a-kind devices that fill entire laboratories. Now, physicists at the University of Innsbruck have built a prototype of an ion trap quantum computer that can be used in industry. It fits into two 19-inch server racks like those found in data centers throughout the world. The compact, self-sustained device demonstrates how this technology will soon be more accessible.

Over the past three decades, fundamental groundwork for building quantum computers has been pioneered at the University of Innsbruck, Austria. As part of the EU Flagship Quantum Technologies, researchers at the Department of Experimental Physics in Innsbruck have now built a demonstrator for a compact ion trap quantum . “Our experiments usually fill 30-to 50-square-meter laboratories,” says Thomas Monz of the University of Innsbruck. “We were now looking to fit the technologies developed here in Innsbruck into the smallest possible space while meeting standards commonly used in industry.” The new device aims to show that quantum computers will soon be ready for use in data centers. “We were able to show that compactness does not have to come at the expense of functionality,” adds Christian Marciniak from the Innsbruck team.

The individual building blocks of the world’s first compact quantum computer had to be significantly reduced in size. For example, the centerpiece of the quantum computer, the ion trap installed in a , takes up only a fraction of the space previously required. It was provided to the researchers by Alpine Quantum Technologies (AQT), a spin-off of the University of Innsbruck and the Austrian Academy of Sciences which aims to build a commercial quantum computer. Other components were contributed by the Fraunhofer Institute for Applied Optics and Precision Engineering in Jena and laser specialist TOPTICA Photonics in Munich, Germany.

Jun 19, 2021

Windows 10 has only 4 years left to live (officially)

Posted by in category: computing

Microsoft will soon announce the next version of Windows on June 24. But before that happens, the company has already declared that it’s ending support for Windows 10 on October 14, 2025.

As noted by Thurrott, this is the first time the firm has specified an end date for the entire operating system. Windows 10 was originally unveiled in 2015, so it will have had a good run of 10 years — suits its name too.

What does it mean for you when Microsoft will end support for Windows 10? Well, for starters, you’ll stop receiving software updates, and there will be no new features added to the operating system.

Jun 18, 2021

Photonic transistor and router using a single quantum-dot-confined spin in a single-sided optical microcavity

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

Circa 2017


The future Internet is very likely the mixture of all-optical Internet with low power consumption and quantum Internet with absolute security. The optical regular Internet would be used by default, but switched over to quantum Internet when sensitive data need to be transmitted. PT and and its counterpart in the quantum limit SPT would be the core components for both OIP and QIP in future Internet. Compared with electronic transistors, PTs/SPTs potentially have higher speed, lower power consumption and compatibility with fibre-optic communication systems.

Several schemes for PT6,7,8,9,10 and SPT11,12,13,14,15,16,17 have been proposed or even proof-of-principle demonstrated. All these prototypes exploit optical nonlinearities, i.e., photon-photon interactions18. However, photons do not interact with each other intrinsically, so indirect photon-photon interactions via electromagnetically induced transparency (EIT)19, photon blockade20 and Rydberg blockade21 were intensively investigated in this context over last two decades in either natural atoms22,23 or artificial atoms including superconducting boxes24,25 and semiconductor quantum dots (QDs)12,13. PT can seldom work in the quantum limit as SPT with the gain greater than 1 because of two big challenges, i.e., the difficulty to achieve the optical nonlinearities at single-photon levels and the distortion of single-photon pulse shape and inevitable noise produced by these nonlinearities26. The QD-cavity QED system is a promising solid-state platform for information and communication technology (ICT) due to their inherent scalability and matured semiconductor technology. But the photon blockade resulting from the anharmonicity of Jaynes-Cummings energy ladder27 is hard to achieve due to the small ratio of the QD-cavity coupling strength to the system dissipation rates12,13,28,29,30,31,32 and the strong QD saturation33. Moreover, the gain of this type of SPT based on the photon blockade is quite limited and only 2.2 is expected for In(Ga)As QDs12,13.

Continue reading “Photonic transistor and router using a single quantum-dot-confined spin in a single-sided optical microcavity” »

Jun 18, 2021

Light cages could give quantum-information networks a boost

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

A new on-chip device that is very good at mediating interactions between light and atoms in a vapour has been developed by researchers in Germany and the UK. Flavie Davidson-Marquis at Humboldt University of Berlin and colleagues call their device a “quantum-optically integrated light cage” and say that it could be used for wide range of applications in quantum information technology.

Hybrid quantum photonics is a rapidly growing area of research that integrates different optical systems within miniaturized devices. One area of interest is the creation of devices for the control, storage and retrieval of the quantum states of light using individual atoms. This is usually done by integrating on-chip photonic devices with miniaturized cells containing warm vapours of alkali atoms. However, this approach faces challenges due to inefficient vapour filling times, high losses of quantum information near cell surfaces and limited overlaps between the wavelengths of light used in optical circuits and the wavelengths of atomic transitions.