Archive for the ‘quantum physics’ category: Page 7

Dec 14, 2021

Can quantum effects in the brain explain consciousness?

Posted by in categories: neuroscience, quantum physics

New research reveals hints of quantum states in tiny proteins called microtubules inside brain cells. If the results stand up, the idea that consciousness is quantum might come in from the cold.

Dec 13, 2021

Generating quantum states of sound inside a microscopic device

Posted by in categories: particle physics, quantum physics

Scientists have made it possible to generate and control quantum states in different physical systems. This control allows scientists to develop powerful new quantum technologies. In addition, it offers a roadmap to test the foundations of quantum physics.

The main challenge is to create quantum states on a larger scale.

In collaboration with the University of Oxford, scientists at Imperial College London, the Niels Bohr Institute, the Max Planck Institute for the Science of Light, and Australian National University have generated and observed non-Gaussian states high-frequency sound waves comprising more than a trillion atoms. Certainly, they transformed a randomly fluctuating sound field in thermal equilibrium to a pattern thrumming with a more specific magnitude.

Dec 13, 2021

EK announces Special Edition water blocks for NVIDIA GeForce RTX 3070 Ti Founders Edition

Posted by in categories: computing, quantum physics

EK®, the leading computer cooling solutions provider, is proud to unveil its Special Edition high-performance GPU water blocks for the NVIDIA® GeForce® RTX™ 3,070 Ti Founders Edition graphics card. The EK-Quantum Vector FE RTX 3,070 Ti D-RGB comes in two versions – Silver and Black, both featuring the aluminum outer shell and backplate in the same color, as well as the Plexi window and terminal illuminated with addressable D-RGB LEDs.

This water block comes with multiple ports, allowing great versatility. The performance is one of the key elements of the design, which is why this block features a 30% larger fin area compared to other water blocks from the Vector family.

Dec 13, 2021

Probing topological spin liquids on a programmable quantum simulator

Posted by in category: quantum physics

Topological order of the toric code type is realized in two synthetic quantum systems.

Dec 13, 2021

Harvard Warns That Chinese Tech Is Rapidly Overtaking American Capabilities

Posted by in categories: biotech/medical, internet, quantum physics, robotics/AI

A new report from the Harvard Kennedy School found that China’s rapidly gaining steam in the realms of AI, 5G, quantum computing, biotechnology, and more.

Dec 13, 2021

Is There a Thing, or a Relationship between Things, at the Bottom of Things?

Posted by in category: quantum physics

The wildly inventive physicist John Wheeler was an early explorer of this notion. In a 1989 paper, “Information, Physics, Quantum: The Search for Links,” Wheeler takes a stab at “the age-old question: How come existence?” The answer, he speculates, might come from a fusion of physics and information theory. The former traffics in “its,” or physical things, and the latter in “bits,” defined as answers to yes-or-no questions.

Wheeler proposes that “every physical quantity, every it, derives its ultimate significance from bits, binary yes-or-no indications, a conclusion which we epitomize in the phrase, it from bit.” Noting the crucial role of measurement in the outcome of quantum experiments, Wheeler suggests that we live in a “participatory universe,” in which we bring the world into existence, and vice versa.

Picking up on Wheeler’s ideas, physicist Carlo Rovelli argues in a 1996 paper, “Relational Quantum Mechanics,” that quantum mechanics undermines “naive realism,” the notion that science discovers a reality that exists independently of our observation of it. He proposes what he calls a “relational” interpretation of quantum mechanics, which says things only exist in relation to other things. Rovelli notes that Galileo and Kant, among others, anticipated the relational perspective.

Continue reading “Is There a Thing, or a Relationship between Things, at the Bottom of Things?” »

Dec 13, 2021

China’s ‘Unhackable’ Quantum Satellite System Promises To Defend World’s Largest Power Grid Against Cyber Attacks

Posted by in categories: cybercrime/malcode, energy, quantum physics

China has developed what it calls a Quantum Satellite System in a bid to combat any adversary intrusion into its power infrastructure. The country boasts the world’s largest national power grid.

Dec 12, 2021

Breakthrough Proof Clears Path for Quantum AI — Overcoming Threat of “Barren Plateaus”

Posted by in categories: quantum physics, robotics/AI

Novel theorem demonstrates convolutional neural networks can always be trained on quantum computers, overcoming threat of ‘barren plateaus’ in optimization problems.

Convolutional neural networks running on quantum computers have generated significant buzz for their potential to analyze quantum data better than classical computers can. While a fundamental solvability problem known as “barren plateaus” has limited the application of these neural networks for large data sets, new research overcomes that Achilles heel with a rigorous proof that guarantees scalability.

“The way you construct a quantum neural network can lead to a barren plateau—or not,” said Marco Cerezo, coauthor of the paper titled “Absence of Barren Plateaus in Quantum Convolutional Neural Networks,” published recently by a Los Alamos National Laboratory team in Physical Review X. Cerezo is a physicist specializing in quantum computing 0, quantum machine learning, and quantum information at Los Alamos. “We proved the absence of barren plateaus for a special type of quantum neural network. Our work provides trainability guarantees for this architecture, meaning that one can generically train its parameters.”

Continue reading “Breakthrough Proof Clears Path for Quantum AI — Overcoming Threat of ‘Barren Plateaus’” »

Dec 12, 2021

DeepMind debuts a massive language A.I. that beats GPT-3 on some tasks

Posted by in categories: quantum physics, robotics/AI

The company belatedly gets into the race to build bigger, better language models despite ethical concerns.

A team at Harvard has documented a new state of matter which could advance quantum technology.

Dec 12, 2021

Never before seen state of matter could advance quantum tech

Posted by in categories: particle physics, quantum physics

Physicists from Harvard University have documented a new state of matter which could significantly advance quantum technology, according to a new paper published in the peer-reviewed journal Science earlier this month.

The state of matter they found is called quantum spin liquid, which has special properties that produce long-range quantum entanglement — a phenomenon in which particles’ states are connected even when the particles are separated by distance.

Quantum spin liquid was first predicted by physicist Philip W. Anderson about 50 years ago, in 1973, but has never been observed in experiments.

Continue reading “Never before seen state of matter could advance quantum tech” »

Page 7 of 417First4567891011Last