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Archive for the ‘computing’ category: Page 132

Dec 8, 2023

Boost Neuroplasticity & Strengthen Your Brain: Expert Tips

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

IN THIS EPISODE OF THE HUMAN UPGRADE™…you’ll learn how much control you can actually have over your brain. There’s a new way of accessing your meat operating system that adds an important element that’s been missing from the brain training conversation. Moha Bensofia joins the show to explain a new piece of neurotech called Mendi. He shares the benefits of getting more blood to the front of your brain. Mendi uses neurofeedback to provide visual feedback based on your brain activity.

A headset measures the activity while you play a fun brain-training mobile game. The system uses fNIRS technology to measure blood flow and oxygenation in the pre-frontal cortex of the brain. The brain training game requires focus and calmness, which increases activity and control of your brain’s pathways.

Dec 7, 2023

Magnetic Revolution: Diamonds and Rust Rewrite Physics Textbooks

Posted by in categories: computing, quantum physics

Cambridge researchers have identified magnetic monopoles in hematite, suggesting new possibilities for advanced, eco-friendly computing technologies. This first-time observation of emergent monopoles in a natural magnet could unlock new avenues in quantum material research.

Researchers have discovered magnetic monopoles – isolated magnetic charges – in a material closely related to rust, a result that could be used to power greener and faster computing technologies.

Researchers led by the University of Cambridge used a technique known as diamond quantum sensing to observe swirling textures and faint magnetic signals on the surface of hematite, a type of iron oxide.

Dec 7, 2023

Physicists ‘entangle’ individual molecules for the first time, hastening possibilities for quantum computing

Posted by in categories: computing, quantum physics

For the first time, a team of Princeton physicists have been able to link together individual molecules into special states that are quantum mechanically “entangled.” In these bizarre states, the molecules remain correlated with each other—and can interact simultaneously—even if they are miles apart, or indeed, even if they occupy opposite ends of the universe. This research was recently published in the journal Science.

“This is a breakthrough in the world of because of the fundamental importance of quantum entanglement,” said Lawrence Cheuk, assistant professor of physics at Princeton University and the senior author of the paper. “But it is also a breakthrough for practical applications because entangled molecules can be the for many future applications.”

These include, for example, quantum computers that can solve certain problems much faster than conventional computers, that can model complex materials whose behaviors are difficult to model, and that can measure faster than their traditional counterparts.

Dec 7, 2023

‘Off to the races’: DARPA, Harvard breakthrough brings quantum computing years closer

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

Quantum bits are potentially powerful but notoriously error-prone. Now a Harvard team says it has found a way to prevent mistakes — by manipulating individual atoms with laser beams — making quantum processing much more efficient.

Dec 7, 2023

The batteries made from wood

Posted by in categories: computing, sustainability, transportation

face_with_colon_three Plants are basically an unlimited resource for batteries which can even make graphene microchips and graphene batteries.


As demand for electric vehicles soars, scientists are searching for materials to make sustainable batteries. Lignin, from waste paper pulp, is shaping up to be a strong contender.

Dec 7, 2023

IBM launches Quantum System Two and first 1,000+ qubit chip

Posted by in categories: computing, quantum physics

Computing giant IBM has launched three new innovations in quantum tech – the first utility-scale quantum computer, the first 1,000+ qubit chip and the most efficient quantum processor in terms of error correction.

IBM gave a sneak preview of its Quantum System Two during a conference last year. Following 12 months of additional research and development, it has now officially launched the system, which is described as “the first modular, utility-scale quantum computer.”

Dec 7, 2023

Ultrahigh-gain organic transistors based on van der Waals metal-barrier interlayer-semiconductor junction

Posted by in categories: chemistry, computing

To achieve high intrinsic gain (Ai) in OTFTs, it is necessary to enlarge output resistance (ro) or transconductance (gm) according to a typical formula of Ai = gmro, which is very difficult for conventional OTFTs because of inherent device structure and operating mode limitations (11, 12). Recently, the “Schottky barrier” (SB) strategy based on metal-semiconductor junction (MS junction) has been adopted in TFTs to pursue high-gain and low-saturation voltage, including subthreshold SB-TFTs (11, 12, 15, 16) and source-gated transistors (17, 18). Unfortunately, the subthreshold transistors are limited in low and narrow subthreshold operating region rather than the normal ON-state region (namely, the normal voltage operating region in a typical TFT), which are difficult to be compatible with typical circuits. As far as we know, the ultrahigh-gain (1000) OTFTs operating in the ON-state region have not been previously reported. On the other hand, the state-of-the-art OTFTs above have mostly suffered from uncontrollable barriers owing to energy-level mismatches and a series of complex interface problems, such as Fermi-level pinning and interface chemical disorder (19). In this case, considerable low-energy carriers are allowed to pass through the junction by thermionic field emission and tunneling models instead of thermionic emission model, which is not conducive to obtaining a high output resistance and high intrinsic gain. Most barrier heights in MS junction do not conform to the prediction value of Schottky-Mott rule. Theoretically, an ideal and high-quality barrier with thermionic emission model allows the rapid depletion of carriers at the source electrode, thus yielding ultrahigh gain, infinite output resistance, and low saturation voltage (11, 12). In addition, infinite output resistance at the saturation regime indicates that the output current is very stable and flat. This performance is helpful because only a single OTFT is used as a simplified current stabilizer in circuits without complex circuit design, which benefits low power and low cost in circuits. Therefore, it is necessary to develop a high-quality barrier strategy to modulate charge injection to meet the requirements of ultrahigh-gain OTFTs.

Here, we demonstrate a metal-barrier interlayer-semiconductor (MBIS) junction to prepare high-performance MBIS-OTFT with an ultrahigh gain of ~104 in the ON-state region, low saturation voltage, almost negligible hysteresis, and good stability. On the basis of low-energy processes and in situ surface oxidation technology, the high-quality van der Waals MBIS junction with wide-bandgap semiconductor (mainly Ga2O3) interlayer is achieved, allowing for an adjustable barrier height and thermionic emission properties. A series of in situ experiments and simulations revealed the relationship between the barriers and the device’s performance. Furthermore, as demonstrations, a simplified current stabilizer and an ultrahigh-gain organic inverter are exhibited without complex circuit design.

Dec 7, 2023

Quantum theory the church Turing principle and the universal quantum computer by David Deutsch

Posted by in categories: computing, quantum physics

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Dec 5, 2023

Uploading Your Mind to a Computer Will Require 3 Crucial Things

Posted by in categories: biological, computing, neuroscience

Imagine brain scanning technology improves greatly in the coming decades, to the point that we can observe how each individual neuron talks to other neurons.

Then, imagine we can record all this information to create a simulation of someone’s brain on a computer.

This is the concept behind mind uploading – the idea that we may one day be able to transition a person from their biological body to a synthetic hardware.

Dec 5, 2023

Replacing bone saws with smart lasers

Posted by in categories: biotech/medical, computing

Using lasers rather than scalpels and saws has many benefits in surgery. Yet they are only used in isolated cases. But that could be about to change: laser systems are getting smarter and better all the time, as a research team from the University of Basel demonstrates.

Even back in 1957, when Gordon Gould coined the term “” (short for “Light Amplification by Stimulated Emission of Radiation”), he was already imagining the possibilities for its use in medicine. Surgeons would be able to make precise incisions without even touching the patient.

Before that could happen, however, there were—and still are—many hurdles to overcome. Manually controlled light sources have been superseded by mechanical and computer-controlled systems to reduce injuries caused by clumsy handling. Switching from continuous beams to pulsed lasers, which turn themselves rapidly on and off, has reduced the heat they produce. Technical advances allowed lasers to enter the world of ophthalmology in the early 1990s. Since then, the technology has moved on in other areas of medicine, too, but only in relatively few applications has it replaced the scalpel and the bone saw.