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Jul 15, 2021

Scientists take first snapshots of ultrafast switching in a quantum electronic device

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

Electronic circuits that compute and store information contain millions of tiny switches that control the flow of electric current. A deeper understanding of how these tiny switches work could help researchers push the frontiers of modern computing.

Now scientists have made the first snapshots of atoms moving inside one of those switches as it turns on and off. Among other things, they discovered a short-lived state within the switch that might someday be exploited for faster and more energy-efficient computing devices.

The research team from the Department of Energy’s SLAC National Accelerator Laboratory, Stanford University, Hewlett Packard Labs, Penn State University and Purdue University described their work in a paper published in Science today.

Jul 15, 2021

Adding logical qubits to Sycamore quantum computer reduces error rate

Posted by in categories: quantum physics, robotics/AI

The Google Quantum AI team has found that adding logical qubits to the company’s quantum computer reduced the logical qubit error rate exponentially. In their paper published in the journal Nature, the group describes their work with logical qubits as an error correction technique and outline what they have learned so far.

One of the hurdles standing in the way of the creation of usable quantum computers is figuring out how to either prevent errors from occurring or fixing them before they are used as part of a computation. On traditional computers, the problem is mostly solved by adding a parity bit—but that approach will not work with quantum computers because of the different nature of qubits—attempts to measure them destroy the data. Prior research has suggested that one possible solution to the problem is to group qubits into clusters called logical qubits. In this new effort, the team at AI Quantum has tested this idea on Google’s Sycamore quantum .

Sycamore works with 54 physical qubits, in their work, the researchers created logical qubits of different sizes ranging from five to 21 qubits to see how each would work. In so doing, they found that adding qubits reduced rates exponentially. They were able to measure the extra qubits in a way that did not involve collapsing their state, but that still provided enough information for them to be used for computations.

Jul 15, 2021

Noise reduction for weak lensing mass mapping: an application of generative adversarial networks to Subaru Hyper Suprime-Cam first-year data

Posted by in categories: mapping, robotics/AI

ABSTRACT. We propose a deep-learning approach based on generative adversarial networks (GANs) to reduce noise in weak lensing mass maps under realistic conditio.

Jul 15, 2021

DeepMind reveals more about how it cracked protein folding

Posted by in categories: biotech/medical, robotics/AI

Today, in a peer-reviewed paper published in the prestigious scientific journal Nature, DeepMind offered further details of how exactly its A.I. software was able to perform so well. It has also open-sourced the code it used to create AlphaFold 2 for other researchers to use.


But it’s still not clear when researchers and drug companies will have easy access to AlphaFold’s structure predictions.

Jul 15, 2021

What science fiction got right and wrong about babies of the future

Posted by in category: futurism

A century of science has pushed the boundaries of human reproduction even beyond writers’ imaginations.

Jul 15, 2021

Humanoid Robot Keeps Getting Fired From His Jobs

Posted by in categories: employment, robotics/AI

SoftBank’s humanoid robot had big career plans, including a job at a bank and dancing with the elderly. Ask about Pepper these days, though, and the conversation gets awkward.

Jul 15, 2021

SpaceX: How Mars “spy satellite” creator tracked Elon Musk’s Tesla Roadster

Posted by in categories: Elon Musk, satellites, sustainability

An engineer who helped develop a camera for Mars has built a tool to track the most fascinating car in the Solar System.

Jul 15, 2021

Europe’s largest battery comes online

Posted by in category: futurism

Europe’s largest battery storage project – and the first to reach 100 megawatts of capacity – has begun operations at Minety in Wiltshire, UK.

Jul 15, 2021

NASA beams back spectacular images of Jupiter and our solar system’s biggest moon, Ganymede

Posted by in category: space

NASA’s Juno probe has flown closer to Jupiter and its largest moon, Ganymede, than any other spacecraft in more than two decades — and the images it beamed back of the gas giant and its icy orb are breathtaking.

Juno approached Ganymede on June 7, before making its 34th flyby of Jupiter the following day, traveling from pole to pole in under three hours.

Continue reading “NASA beams back spectacular images of Jupiter and our solar system’s biggest moon, Ganymede” »

Jul 15, 2021

“Neuroprosthesis” Restores Words to Man with Paralysis

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

Researchers at UC San Francisco have successfully developed a “speech neuroprosthesis” that has enabled a man with severe paralysis to communicate in sentences, translating signals from his brain to the vocal tract directly into words that appear as text on a screen.

The achievement, which was developed in collaboration with the first participant of a clinical research trial, builds on more than a decade of effort by UCSF neurosurgeon Edward Chang, MD, to develop a technology that allows people with paralysis to communicate even if they are unable to speak on their own. The study appears July 15 in the New England Journal of Medicine.