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Old computer technology points the way to future of quantum computing

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VANCOUVER — Researchers have made a breakthrough in quantum technology development that has the potential to leave today’s supercomputers in the dust, opening the door to advances in fields including medicine, chemistry, cybersecurity and others that have been out of reach.

In a study published in the journal Nature on Wednesday, researchers from Simon Fraser University in British Columbia said they found a way to create quantum computing processors in silicon chips.

Principal investigator Stephanie Simmons said they illuminated tiny imperfections on the silicon chips with intense beams of light. The defects in the silicon chips act as a carrier of information, she said. While the rest of the chip transmits the light, the tiny defect reflects it back and turns into a messenger, she said.

There are many naturally occurring imperfections in silicon. Some of these imperfections can act as quantum bits, or qubits. Scientists call those kinds of imperfections spin qubits. Past research has shown that silicon can produce some of the most stable and long-lived qubits in the industry.

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“These results unlock immediate opportunities to construct silicon-integrated, telecommunications-band quantum information networks,” said the study.

Simmons, who is the university’s Canada Research Chair in silicon quantum technologies, said the main challenge with quantum computing was being able to send information to and from qubits.

“People have worked with spin qubits, or defects, in silicon before,” Simmons said. “And people have worked with photon qubits in silicon before. But nobody’s brought them together like this.”

Lead author Daniel Higginbottom called the breakthrough “immediately promising” because researchers achieved what was considered impossible by combining two known but parallel fields.

Silicon defects were extensively studied from the 1970s through the ’90s while quantum physics has been researched for decades, said Higginbottom, who is a post-doctoral fellow at the university’s physics department.

“For the longest time people didn’t see any potential for optical technology in silicon defects. But we’ve really pioneered revisiting these and have found something with applications in quantum technology that’s certainly remarkable.”

Although in an embryonic stage, Simmons said quantum computing is the rock ‘n’ roll future of computers that can solve anything from simple algebra problems to complex pharmaceutical equations or formulas that unlock deep mysteries of space.

“We’re going to be limited by our imaginations at this stage. What’s really going to take off is really far outside our predictive capabilities as humans.”

The advantage of using silicon chips is that they are widely available, understood and have a giant manufacturing base, she said.

“We can really get it working and we should be able to move more quickly and hopefully bring that capability mainstream much faster.”

Some physicists predict quantum computers will become mainstream in about two decades, although Simmons said she thinks it will be much sooner.

In the 1950s, people thought the technology behind transistors was mainly going to be used for hearing aids, she said. No one then predicted that the physics behind a transistor could be applied to Facebook or Google, she added.

“So, we’ll have to see how quantum technology plays out over decades in terms of what applications really do resonate with the public,” she said. “But there is going to be a lot because people are creative, and these are fundamentally very powerful tools that we’re unlocking.”

This report by The Canadian Press was first published July 14, 2022.

 

Hina Alam, The Canadian Press

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The Ultimate Recap of Sea Otter 2024 – Pinkbike.com

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Vittoria Releases New Peyote & Mezcal XC Race Tires
Maxxis Team Spec Aspen ST Tire
New DT Swiss 240 DEG Hubs
Kali Protectives’ New Full Face Helmets
Industry Nine’s SOLiX M Hubs & Wheelsets
Michelin’s Aggressive New Wild Enduro Tires
Praxis’ New Flat Pedals, Stem, & Carbon Bottle Cage
Transmission Cage Upgrades from Kogel, Ceramicspeed, and Cascade Components
Randoms Round 1 – Sea Otter 2024
Madrone Cycles’ SRAM Eagle Repair Kits & Prototype Derailleur
Vorsprung’s New Telum Coil Shock
EXT’s Vaia Inverted DH Fork & Updated Coil Shocks
Randoms Round 2: New Tools, Goggles, Grips, Racks, & More – Sea Otter 2024
What’s New in Women’s MTB Apparel at Sea Otter 2024
Even More Randoms – Sea Otter 2024
Randoms Round 3: Dario’s Treasures
What’s New for the Kids at Sea Otter 2024
Deity Releases New Stems, Grips, & Pedals
Dario’s Final Sea Otter Randoms
Brian’s Randoms from Sea Otter 2024

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With roots dating back to 1991, the Sea Otter Classic is one of the biggest biking events and tradeshows each year and brings together all sides of the biking industry from athletes to brands, spectators and consumers. Taking place in April in the sunny hills of Monterey, California, that means this event really feels like the official start to the biking season in North America. Christina Chappetta covers why it’s much different to an indoor European biking tradeshow, a World Cup racing weekend or even Crankworx mountain bike festival, in that it encompasses nearly ALL of the biking disciplines, including road cycling, enduro, downhill, dual slalom, XC, trials riding and more.

In the past fortnight, we have seen large amount of new tech releases. However, Sea Otter 2024 represents some of the first opportunities for many riders to see these things in the flesh, as well as take a deeper dive into what the product aims to do.
Welcome to a video summary from Day 2 of the Sea Otter Classic.
There are so many giveaways, interesting new products and colourful characters at Sea Otter Classic that it’s hard to stand out from the crowd. Ben Cathro takes a lap of the venue to find his favourites.



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Apple iPad Air 2024: Insider Makes Hasty U-Turn On New Feature – Forbes

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Well, that was quick. On May 18, a respected industry insider predicted a new display technology for the iPad Air that’s expected in the coming days—Apple just announced its latest special event.

The new 12.9-inch iPad Air, the report claimed, would have the same miniLED backlighting currently found on the larger iPad Pro, using the leftover inventory from the current Pro as that model switches to OLED. That was exciting news.

But now, Ross Young, the analyst who made the claim, has changed his mind. The new prediction, shared with paid subscribers only, is that the miniLED technology won’t be coming to the iPad Air, in either size.

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While it made sense that the inventory could be maximized in this way, it now “makes sense” that it won’t.

Young says that while he’d heard from supply chain sources that it would, he’d now had contact from “even more supply chain sources” that it won’t.

And the reason this change of heart now makes sense is that this miniLED technology is expensive, so it would be surprising if it made it to the iPad Air, which is more affordable than the Pro.

That’s not quite all the analyst shared. He also said that there are now reports of a new iPad coming later in the year. This is a 12.9-inch iPad, with miniLED backlighting and it could arrive between October and December this year.

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This is intriguing. What could it be? Assuming that the iPad Pro and iPad Air are released in May, it’s extremely unlikely either will be updated later in the year. And if the iPad Air isn’t pricey enough for miniLED to be included, what tablet could Apple be introducing that is the same size as the bigger Pro, with a pricey screen tech, which would sit between the Air and the Pro, it seems?

Young is highly reliable, but this seems slightly preposterous to me. The only other iPad in the range due a refresh is the regular iPad (at 12.9-inches, the iPad mini is clearly out of the picture) and that doesn’t seem likely either.

It seems to me that any regular iPad will almost certainly have the same screen size as now, 10.9 inches. The regular iPad only grew to this size screen in the current generation, and Apple almost never changes designs after one iteration.

Perhaps things will become clearer as the year goes on.

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Woman who left beaten dad on floor for 2 days was 'overwhelmed' with his care, judge told – CBC.ca

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A Calgary woman who abused her sick, 77-year-old father was “overwhelmed” at the task of caring for him, a judge heard Wednesday at a sentencing hearing. 

In January, Tara Picard, 52, pleaded guilty to charges of assault and failing to provide the necessaries of life after her father (whom CBC News is not naming) was found injured on a basement floor, where he’d been lying for two days. 

On Wednesday, prosecutor Donna Spaner and defence lawyer Shaun Leochko asked the judge to allow Picard to serve her sentence in the community under conditions as part of a conditional sentence order.

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Justice Indra Maharaj agreed to a two-year conditional sentence for Picard followed by a year of probation. 

“There is no doubt she became overwhelmed,” said Spaner in her submissions. “There is no question Ms. Picard has remorse.”

Leochko told the judge that caring for her father “was really more than [Picard] could handle.”

Maharaj heard that Picard is Indigenous and was the victim of abuse growing up. She lives in a sober dorm-style facility and is working with a mental health and addictions navigator, according to Leochko.

A ‘willingness to give back’

As part of the sentence, Picard must complete 300 hours of community service. 

Justice Maharaj commended Picard for “taking that on.”

“That shows me Ms. Picard sincerely does recognize what has happened here,” said the judge. 

“What I interpret from that is Ms. Picard’s willingness to give back to her community.”

During Picard’s plea, court heard that in November 2021, Picard and her father fought over his drinking. 

Nurses discover victim

The victim suffers from a number of medical issues, including diabetes, heart disease, dementia and alcoholism.

At the time, home-care registered nurses were assigned to help provide supplementary care.

Nurses found the victim wearing a soiled adult diaper and suffering from two black eyes with blood on his head. 

He told the nurses who discovered him that he’d been there for two days. 

Picard admitted she knew her father had fallen and she had “administered a number of physical blows.”

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