from the world's big
"Game changer" superconductor discovered to power future computers
Scientists from John Hopkins find a material for quantum computing.
- Researchers from John Hopkins University discovered a new superconducting material.
- The material, called β-Bi2Pd, can create flex qubits, necessary for quantum computing.
- Next for the scientists is looking for Majorana fermions.
Quantum computers may be closer to reality thanks to a discovery by researchers from John Hopkins University. Their recent paper, published in Science, describes their find of a superconducting material that can be the basis of the computers of the future.
The big difference between our contemporary computers and quantum computers is that instead of using bits of either "0" or "1" to store a piece of information, the quantum computers will employ quantum mechanics. They will store data in quantum bits (known as "qubits"). Such qubits exist in a superposition of two states, where both zero and one can be represented at the same time.
This technology, supercharging computational speed, could make quantum computers immensely superior to current computers, especially in such fields as artificial intelligence, predicting weather, the stock market, developing cures for illnesses, military applications and others.
What the John Hopkins scientists found is a way to create a qubit from a ring made out of a superconducting material known as β-Bi2Pd, which naturally exists in a quantum state. Usually you would need to add magnetic fields to achieve this effect, a fact that makes the "flux qubit" created from this substance a possible "game changer," said Chia-Ling Chien, Professor of Physics at The Johns Hopkins University and the paper's co-author.
In their study, the researchers observed that β-Bi2Pd exists between two states, with the current able to simultaneously circulate both clockwise and counterclockwise through its ring.
The scientists are most excited about the practicality of utilizing such a material.
Quantum Computing 2019 Update
Quantum computing overview that includes main concepts, recent developments from IBM, Intel, Google, Microsoft, D-Wave, Rigetti and other pioneers.
Much more research lies ahead, however, before the era of quantum computers is upon us. Next for the researchers is looking for Majorana fermions within β-Bi2Pd. Finding these theoretical particles is seen as an important milestone in quantum computing. What's significant is that they are anti-particles of themselves and can lead to error-free topological quantum computers.
The paper's first author. Yufan Li, a postdoctoral fellow in the Department of Physics & Astronomy at The Johns Hopkins University, thinks that discovering the special properties of β-Bi2Pd bodes well for finding within it the fermions.
"Ultimately, the goal is to find and then manipulate Majorana fermions, which is key to achieving fault-tolerant quantum computing for truly unleashing the power of quantum mechanics," said Li in a press release.
Xiaoying Xu of Johns Hopkins University; and M.-H. Lee and M.-W. Chu of National Taiwan University were the additional co-authors of the paper.
Check out their new paper, published October 11th, in Science Magazine.
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Construction of the $500 billion dollar tech city-state of the future is moving ahead.
- The futuristic megacity Neom is being built in Saudi Arabia.
- The city will be fully automated, leading in health, education and quality of life.
- It will feature an artificial moon, cloud seeding, robotic gladiators and flying taxis.
The Red Sea area where Neom will be built:
Saudi Arabia Plans Futuristic City, "Neom" (Full Promotional Video)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="c646d528d230c1bf66c75422bc4ccf6f"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/N53DzL3_BHA?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Frequent shopping for single items adds to our carbon footprint.
- A new study shows e-commerce sites like Amazon leave larger greenhouse gas footprints than retail stores.
- Ordering online from retail stores has an even smaller footprint than going to the store yourself.
- Greening efforts by major e-commerce sites won't curb wasteful consumer habits. Consolidating online orders can make a difference.
A pile of recycled cardboard sits on the ground at Recology's Recycle Central on January 4, 2018 in San Francisco, California.
Photo by Justin Sullivan/Getty Images<p>A large part of the reason is speed. In a competitive market, pure players use the equation, <em>speed + convenience</em>, to drive adoption. This is especially relevant to the "last mile" GHG footprint: the distance between the distribution center and the consumer.</p><p>Interestingly, the smallest GHG footprint occurs when you order directly from a physical store—even smaller than going there yourself. Pure players, such as Amazon, are the greatest offenders. Variables like geographic location matter; the team looked at shopping in the UK, the US, China, and the Netherlands. </p><p>Sadegh Shahmohammadi, a PhD student at the Netherlands' Radboud University and corresponding author of the paper, <a href="https://www.cnn.com/2020/02/26/tech/greenhouse-gas-emissions-retail/index.html" target="_blank">says</a> the above "pattern holds true in countries where people mostly drive. It really depends on the country and consumer behavior there."</p><p>The researchers write that this year-and-a-half long study pushes back on previous research that claims online shopping to be better in terms of GHG footprints.</p><p style="margin-left: 20px;">"They have, however, compared the GHG emissions per shopping event and did not consider the link between the retail channels and the basket size, which leads to a different conclusion than that of the current study."</p><p>Online retail is where convenience trumps environment: people tend to order one item at a time when shopping on pure player sites, whereas they stock up on multiple items when visiting a store. Consumers will sometimes order a number of separate items over the course of a week rather than making one trip to purchase everything they need. </p><p>While greening efforts by online retailers are important, until a shift in consumer attitude changes, the current carbon footprint will be a hard obstacle to overcome. Amazon is trying to have it both ways—carbon-free and convenience addicted—and the math isn't adding up. If you need to order things, do it online, but try to consolidate your purchases as much as possible.</p><p>--</p><p><em>Stay in touch with Derek on <a href="http://www.twitter.com/derekberes" target="_blank">Twitter</a>, <a href="https://www.facebook.com/DerekBeresdotcom" target="_blank">Facebook</a> and <a href="https://derekberes.substack.com/" target="_blank">Substack</a>. His next book is</em> "<em>Hero's Dose: The Case For Psychedelics in Ritual and Therapy."</em></p>
Chronic irregular sleep in children was associated with psychotic experiences in adolescence, according to a recent study out of the University of Birmingham's School of Psychology.