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Archive for the ‘computing’ category: Page 193

Mar 21, 2023

Research team finds indirect evidence for existence of dark matter surrounding black holes

Posted by in categories: computing, cosmology

Dark matter does not emit or reflect light, nor does it interact with electromagnetic forces, making it exceptionally difficult to detect. Nevertheless, a research team from The Education University of Hong Kong (EdUHK) has proven that there is a substantial amount of dark matter surrounding black holes. The study results are published in the journal The Astrophysical Journal Letters.

The team selected two nearby (A0620-00 and XTE J1118+480) as research subjects, with both considered as binary systems. That is, each of the black holes has a companion star orbiting it. Based on the orbits of the companion stars, observations indicate that their rates of orbital decay are approximately one millisecond (1ms) per year, which is about 50 times greater than the theoretical estimation of about 0.02ms annually.

To examine whether exists around black holes, the EdUHK team applied the “dark matter dynamical friction model”—a theory widely held in academia—to the two chosen binary systems, through computer simulations. The team found that the fast orbital decay of the companion stars precisely matches the data observed.

Mar 21, 2023

Photoexcited electrons from fullerene help create high-speed switch

Posted by in categories: computing, quantum physics

Quantum ‘turnout’ device has a switching speed four to five orders of magnitude faster than that of current solid-state transistors.

Mar 21, 2023

Motors Run Wirelessly With Tesla Coil

Posted by in category: computing

Year 2016 This is a simple set up for running an electric engine without wires with a tesla coil.


This is a small demonstration showing how Tesla’s wireless technology can run motors and other various devices. Although the setup is only using about 500–600 ma, the results are dependable up to about three feet from the transmitter.
John.

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Mar 21, 2023

Did We Just Change Animation Forever?

Posted by in category: computing

ANYONE can make a cartoon with this groundbreaking technique. Want to learn how? We made a ONE-HOUR, CLICK-BY-CLICK TUTORIAL on http://www.corridordigital.com/

Watch the full ROCK PAPER SCISSORS anime on Corridor ► https://youtu.be/GVT3WUa-48Y

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Mar 19, 2023

The Extinction of Death

Posted by in categories: computing, existential risks, life extension, media & arts

Billionaires like Jeff Bezos, Peter Thiel, and Sam Altman want to live forever, here’s how they’re planning on doing it and what it could mean for society.

First ‘long form’ video I have made in awhile. Very excited to get back into it and play around with different ways of styles and editing. Excited to hear what you guys think!

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Mar 18, 2023

NASA Dragonfly Bound for Saturn’s Giant Moon Titan Could Reveal Chemistry Leading to Life

Posted by in categories: chemistry, computing, space

Saturn ’s giant moon, Titan, is due to launch in 2027. When it arrives in the mid-2030s, it will begin a journey of discovery that could bring about a new understanding of the development of life in the universe. This mission, called Dragonfly, will carry an instrument called the Dragonfly Mass Spectrometer (DraMS), designed to help scientists hone in on the chemistry at work on Titan. It may also shed light on the kinds of chemical steps that occurred on Earth that ultimately led to the formation of life, called prebiotic chemistry.

Titan’s abundant complex carbon-rich chemistry, interior ocean, and past presence of liquid water on the surface make it an ideal destination to study prebiotic chemical processes and the potential habitability of an extraterrestrial environment.

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Mar 18, 2023

Qubits put new spin on magnetism: Boosting applications of quantum computers

Posted by in categories: computing, quantum physics

Research using a quantum computer as the physical platform for quantum experiments has found a way to design and characterize tailor-made magnetic objects using quantum bits, or qubits. That opens up a new approach to develop new materials and robust quantum computing.

“With the help of a quantum annealer, we demonstrated a new way to pattern ,” said Alejandro Lopez-Bezanilla, a virtual experimentalist in the Theoretical Division at Los Alamos National Laboratory. Lopez-Bezanilla is the corresponding author of a paper about the research in Science Advances.

“We showed that a magnetic quasicrystal lattice can host states that go beyond the zero and one bit states of classical information technology,” Lopez-Bezanilla said. “By applying a to a finite set of spins, we can morph the magnetic landscape of a quasicrystal object.”

Mar 18, 2023

What is quantum cloud computing, and how does it work?

Posted by in categories: chemistry, computing, quantum physics

Quantum cloud computing makes quantum computing resources available to organizations, academics and other users through cloud technology.

Cloud-based quantum computers function at greater speeds, with higher computing power than conventional computers, because they employ the principles of quantum physics when solving complex computational problems.

Different types of quantum computers exist, such as quantum annealers, analog quantum simulators and universal quantum computers. Quantum annealers are considered the least powerful among quantum computers but work well to solve optimization problems. Analog quantum simulators, on the other hand, are powerful systems that can solve physics and biochemistry problems.

Mar 18, 2023

Pioneering Quantum Physicists Win Nobel Prize in Physics

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

The physicists Alain Aspect, John Clauser and Anton Zeilinger have won the 2022 Nobel Prize in Physics for experiments that proved the profoundly strange quantum nature of reality. Their experiments collectively established the existence of a bizarre quantum phenomenon known as entanglement, where two widely separated particles appear to share information despite having no conceivable way of communicating.

Entanglement lay at the heart of a fiery clash in the 1930s between physics titans Albert Einstein on the one hand and Niels Bohr and Erwin Schrödinger on the other about how the universe operates at a fundamental level. Einstein believed all aspects of reality should have a concrete and fully knowable existence. All objects — from the moon to a photon of light — should have precisely defined properties that can be discovered through measurement. Bohr, Schrödinger and other proponents of the nascent quantum mechanics, however, were finding that reality appeared to be fundamentally uncertain; a particle does not possess certain properties until the moment of measurement.

Entanglement emerged as a decisive way to distinguish between these two possible versions of reality. The physicist John Bell proposed a decisive thought experiment that was later realized in various experimental forms by Aspect and Clauser. The work proved Schrödinger right. Quantum mechanics was the operating system of the universe.

Mar 17, 2023

A scalable and programmable quantum phononic processor based on trapped ions

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

Quantum computing systems have the potential to outperform classical computers on some tasks, helping to solve complex real-world problems in shorter times. Research teams worldwide have thus been trying to realize this quantum advantage over traditional computers, by creating and testing different quantum systems.

Researchers at Tsinghua University recently developed a new programmable quantum phononic processor with trapped ions. This processor, introduced in a paper in Nature Physics, could be easier to scale up in size than other previously proposed photonic quantum processors, which could ultimately enable better performances on complex problems.

“Originally, we were interested in the proposal of Scott Aaronson and others about Boson sampling, which might show the quantum advantages of simple linear optics and photons,” Kihwan Kim, one of the researchers who carried out the study, told Phys.org. “We were wondering if it is possible to realize it with the in a trapped ion system.”