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Archive for the ‘quantum physics’ category: Page 518

Aug 26, 2020

Intel Advances On The Road To Quantum Practicality

Posted by in categories: computing, education, government, quantum physics

Clarke urges other companies to also get ready now by investing in developing a quantum-ready workforce. “Quantum computing requires a specialized workforce, expertise that is pretty rare today,” he says. Clarke also advises companies to work with government agencies that are sponsoring quantum computing experiments and to fund quantum research in universities. He also supports nation-wide initiatives to spread the word all the way down the education system, even to high-school students, “so people aren’t scared or intimidated by the word quantum.”


Intel aims to achieve quantum practicality—commercially-viable quantum computing—by the end of this decade.

Aug 26, 2020

Researchers on a path to build powerful and practical quantum computer

Posted by in categories: computing, quantum physics

For the first time, researchers have designed a fully connected 32-qubit trapped-ion quantum computer register operating at cryogenic temperatures. The new system represents an important step toward developing practical quantum computers.

Junki Kim from Duke University will present the new hardware design at the inaugural OSA Quantum 2.0 conference to be co-located as an all-virtual event with OSA Frontiers in Optics and Laser Science APS/DLS (FiO + LS) conference 14—17 September.

Instead of using traditional bits that can only be a zero or a one, quantum computers use qubits that can be in a superposition of computational states. This allows quantum computers to solve problems that are too complex for traditional computers.

Aug 24, 2020

Scientists Develop Nanophotonic 3D Printing for Virtual Reality Screens

Posted by in categories: 3D printing, government, mobile phones, nanotechnology, quantum physics, virtual reality, wearables

In Korea, scientists are turning to better ways for improving our screen time, and this means 3D printing something most of us know little about: quantum dots. Focusing on refining the wonders of virtual reality and other electronic displays even further, researchers from the Nano Hybrid Technology Research Center of Korea Electrotechnology Research Institute (KERI), a government-funded research institute under National Research Council of Science & Technology (NST) of the Ministry of Science and ICT (MSIT), have created nanophotonic 3D printing technology for screens. Meant to be used with virtual reality, as well as TVs, smartphones, and wearables, high resolution is achieved due to a 3D layout expanding the density and quality of the pixels.

Led by Dr. Jaeyeon Pyo and Dr. Seung Kwon Seol, the team has published the results of their research and development in “3D-Printed Quantum Dot Nanopixels.” While pixels are produced to represent data in many electronics, conventionally they are created with 2D patterning. To overcome limitations in brightness and resolution, the scientists elevated this previously strained technology to the next level with 3D printed quantum dots to be contained within polymer nanowires.

Aug 24, 2020

A new quantum paradox throws the foundations of observed reality into question

Posted by in category: quantum physics

If a tree falls in a forest and no one is there to hear it, does it make a sound? Perhaps not, some say.

And if someone is there to hear it? If you think that means it obviously did make a sound, you might need to revise that opinion.

We have found a new paradox in quantum mechanics – one of our two most fundamental scientific theories, together with Einstein’s theory of relativity – that throws doubt on some common-sense ideas about physical reality.

Continue reading “A new quantum paradox throws the foundations of observed reality into question” »

Aug 23, 2020

How quantum computers could make future humans immortal

Posted by in categories: computing, life extension, quantum physics

As best we can guess, life started on planet Earth about 3.5 billion years ago. Unfortunately, so did death. And the reaper remains undefeated.

About 99 percent of all species that ever lived are now extinct. There’s almost no scientific reason to believe humans won’t join them in a relatively insignificant amount of time. I say almost because, if we try really hard, we can conceive of a theoretical, science-based intervention for death. Let’s call it a “quantum respawn.”

We’re not the first generation to imagine immortality. But we are the first one to have access to this really cool research paper from physicists working at the University of Rochester in New York, and Purdue University in Indiana.

Aug 23, 2020

Electronic Cooling Technology Could Be a Quantum Computing Game Changer

Posted by in categories: computing, quantum physics

Controlling temperature is crucial for the functioning of electronic devices. It’s even more so for highly complex quantum computers that rely on the ability to control quantum bits (also called qubits) in order to achieve processing capabilities far above the most powerful classical computer.

For a quantum computer to maintain its prowess, it must be cooled to a temperature close to absolute zero (−273.15oC) to keep the qubits in a state of coherence. However, keeping a quantum computer’s core temperature near absolute zero is not a simple feat and poses a major roadblock to the advancement of quantum computing. Often quantum computer producers keep the machines cool by using liquid helium as a refrigerant delivered in multiple stages. Nonetheless, this system is cumbersome and elaborate, and is not user-friendly.

Aug 23, 2020

Stanford Scientists Slow Light Down and Steer It With Resonant Nanoantennas

Posted by in categories: augmented reality, biotech/medical, computing, internet, nanotechnology, quantum physics, virtual reality

Researchers have fashioned ultrathin silicon nanoantennas that trap and redirect light, for applications in quantum computing, LIDAR and even the detection of viruses.

Light is notoriously fast. Its speed is crucial for rapid information exchange, but as light zips through materials, its chances of interacting and exciting atoms and molecules can become very small. If scientists can put the brakes on light particles, or photons, it would open the door to a host of new technology applications.

Now, in a paper published on August 17, 2020, in Nature Nanotechnology, Stanford scientists demonstrate a new approach to slow light significantly, much like an echo chamber holds onto sound, and to direct it at will. Researchers in the lab of Jennifer Dionne, associate professor of materials science and engineering at Stanford, structured ultrathin silicon chips into nanoscale bars to resonantly trap light and then release or redirect it later. These “high-quality-factor” or “high-Q” resonators could lead to novel ways of manipulating and using light, including new applications for quantum computing, virtual reality and augmented reality; light-based WiFi; and even the detection of viruses like SARS-CoV-2.

Aug 22, 2020

Scientists Extend Quantum States by 22 Milliseconds. That’s an Eternity

Posted by in categories: computing, quantum physics

Molecular engineers at the University of Chicago have found a way to extend the quantum state of a qubit to 22 milliseconds, representing a huge improvement and a window some say will make quantum computers far more feasible. The secret is an alternating magnetic field, which they say is scientifically “intricate” but easy to apply.

🤯 You like quantum. So do we. Let’s nerd out over it together.

Aug 20, 2020

“The Inconstant Universe” –Weird Findings Point to a New Physics

Posted by in categories: cosmology, quantum physics

“Our standard model of cosmology is based on an isotropic universe, one that is the same, statistically, in all directions,” says astrophysicist John Webb at the University of New South Wales about the universal constant which appears inconstant at the outer fringes of the cosmos, it occurs in only one direction…” That standard model itself is built upon Einstein’s theory of gravity, which itself explicitly assumes constancy of the laws of Nature. If such fundamental principles turn out to be only good approximations, the doors are open to some very exciting, new ideas in physics.”

Those looking forward to a day when science’s Grand Unifying Theory of Everything could be worn on a t-shirt may have to wait a little longer as astrophysicists continue to find hints that one of the cosmological constants is not so constant after all.

Continue reading “‘The Inconstant Universe’ --Weird Findings Point to a New Physics” »

Aug 20, 2020

In Quantum Physics, Even Humans Act As Waves

Posted by in category: quantum physics

Quantum physics just keeps getting weirder, even as it gets more fascinating.