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Archive for the ‘computing’ category: Page 3

Dec 18, 2024

Layer by layer: How simulations help manufacturing of modern displays

Posted by in categories: computing, sustainability

Modern materials must be recyclable and sustainable. Consumer electronics is no exception, with organic light-emitting diodes (OLEDs) taking over modern televisions and portable device displays. However, the development of suitable materials—from the synthesis of molecules to the production of display components—is very time-consuming.

Scientists led by Denis Andrienko of the Max Planck Institute for Polymer Research and Falk May from Display Solutions at Merck have now developed a simulation method that could significantly speed up the development of new materials.

High contrast and are key features of innovative . OLEDs use thin films of organic molecules, i.e. carbon-containing molecules, to achieve these goals.

Dec 18, 2024

ORNL researchers translate foundational uranium science into active nonproliferation solutions

Posted by in categories: biotech/medical, computing, military, nuclear energy, science, terrorism

Through its commitment to international nuclear nonproliferation — a mission focused on limiting the spread of nuclear weapons and sensitive technology while working to promote peaceful use of nuclear science and technology — the United States maintains a constant vigilance aimed at reducing the threat of nuclear and radiological terrorism worldwide.

With extensive research into both basic and applied uranium science, as well as internationally deployed operational solutions, the Department of Energy’s Oak Ridge National Laboratory is uniquely positioned to contribute its comprehensive capabilities toward advancing the U.S. nonproliferation mission.

In 1943, seemingly overnight, ORNL emerged from a rural Tennessee valley as the site of the world’s first continuously operating nuclear reactor, in support of U.S. efforts to end World War II. ORNL’s mission soon shifted into peacetime applications, harnessing nuclear science for medical treatments, power generation and breakthroughs in materials, biological and computational sciences.

Dec 18, 2024

Israel now operating its first domestically built quantum computer

Posted by in categories: computing, quantum physics

First Israeli superconductor-based quantum computer supporting defense and civilian applications is now operational.

Dec 18, 2024

Retrocausal Quantum Teleportation Protocol

Posted by in categories: computing, cosmology, information science, quantum physics, time travel

While classical physics presents a deterministic universe where cause must precede effect, quantum mechanics and relativity theory paint a more nuanced picture. There are already well-known examples from relativity theory like wormholes, which are valid solutions of Einstein’s Field Equations, and similarly in quantum mechanics the non-classical state of quantum entanglement—the “spooky action at a distance” that troubled Einstein—which demonstrates that quantum systems can maintain instantaneous correlations across space and, potentially, time.

Perhaps most intriguingly, the protocol suggests that quantum entanglement can be used to effectively send information about optimal measurement settings “back in time”—information that would normally only be available after an experiment is complete. This capability, while probabilistic in nature, could revolutionize quantum computing and measurement techniques. Recent advances in multipartite hybrid entanglement even suggest these effects might be achievable in real-world conditions, despite environmental noise and interference. The realization of such a retrocausal quantum computational network would, effectively, be the construction of a time machine, defined in general as a system in which some phenomenon characteristic only of chronology violation can reliably be observed.

This article explores the theoretical foundations, experimental proposals, significant improvements, and potential applications of the retrocausal teleportation protocol. From its origins in quantum mechanics and relativity theory to its implications for our understanding of causality and the nature of time itself, we examine how this cutting-edge research challenges our classical intuitions while opening new possibilities for quantum technology. As we delve into these concepts, we’ll see how the seemingly fantastic notion of time travel finds a subtle but profound expression in the quantum realm, potentially revolutionizing our approach to quantum computation and measurement while deepening our understanding of the universe’s temporal fabric.

Dec 18, 2024

The Human Brain Operates at a Stunningly Slow Pace

Posted by in categories: computing, Elon Musk, internet, neuroscience

The brain is sometimes called the most complex machine in the known universe. But the thoughts that it outputs putter along at a trifling 10 bits per second, the pace of a conversation.

By Rachel Nuwer

Continue reading “The Human Brain Operates at a Stunningly Slow Pace” »

Dec 18, 2024

Engineers Decode Heat Flow to Supercharge Computer Chips

Posted by in categories: computing, nanotechnology, sustainability

Researchers at the University of Virginia have made significant advancements in understanding how heat flows through thin metal films, critical for designing more efficient computer chips.

This study confirms Matthiessen’s rule at the nanoscale, enhancing heat management in ultra-thin copper films used in next-generation devices, thereby improving performance and sustainability.

Breakthrough in Chip Technology.

Dec 18, 2024

The brain’s processing paradox: Study quantifies the speed of human thought

Posted by in categories: computing, internet, neuroscience

Caltech researchers have quantified the speed of human thought: a rate of 10 bits per second. However, our bodies’ sensory systems gather data about our environments at a rate of a trillion bits per second, which is 100 million times faster than our thought processes. This new study raises major new avenues of exploration for neuroscientists, in particular: Why can we only think one thing at a time while our sensory systems process thousands of inputs at once?

The research was conducted in the laboratory of Markus Meister, the Anne P. and Benjamin F. Biaggini Professor of Biological Sciences, and it was led by graduate student Jieyu Zheng. A paper describing the study appears in the journal Neuron.

A bit is a basic unit of information in computing. A typical Wi-Fi connection, for example, can process 50 million bits per second. In the new study, Zheng applied techniques from the field of information theory to a vast amount of scientific literature on human behaviors such as reading and writing, playing video games, and solving Rubik’s Cubes, to calculate that humans think at a speed of 10 bits per second.

Dec 18, 2024

Researchers achieve near-unity quantum efficiency in 2D photon emitters

Posted by in categories: computing, quantum physics

Leveraging the principles of quantum mechanics, quantum computers can perform calculations at lightning-fast speeds, enabling them to solve complex problems faster than conventional computers. In quantum technology applications such as quantum computing, light plays a central role in encoding and transmitting information.

NTU researchers have recently made breakthroughs in manipulating light that could potentially usher in the era of . Details of this research have been published in Nature Photonics, Physical Review Letters, and Nature Communications.

Dec 17, 2024

Consciousness, Free Will, and Psychedelics: Exploring Mysteries of the Mind

Posted by in categories: computing, neuroscience

World renowned neurophysiologist and computational neuroscientist Christof Koch joins Brian Greene to discuss how decades of experimental and theoretical investigation have shaped his understanding of consciousness and the brain — and how recent psychedelic experiences have profoundly reshaped his perspective on life and death.

This program is part of the Big Ideas series, supported by the John Templeton Foundation.

Continue reading “Consciousness, Free Will, and Psychedelics: Exploring Mysteries of the Mind” »

Dec 17, 2024

Self-Assembly Trick Makes Transistors and Diodes

Posted by in categories: computing, nanotechnology

The technique uses liquid metal to build nanoscale and microscale electronics.

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