Archive for the ‘Quantum Computer’ Category

This Week’s Awesome Tech Stories From Around the Web (Through February 29) – Singularity Hub

COMPUTING

Inside the Race to Build the Best Quantum Computer on EarthGideon Lichfield | MIT Technology ReviewRegardless of whether you agree with Googles position [on quantum supremacy] or IBMs, the next goal is clear, Oliver says: to build a quantum computer that can do something useful. The trouble is that its nearly impossible to predict what the first useful task will be, or how big a computer will be needed to perform it.

Were Not Prepared for the End of Moores LawDavid Rotman | MIT Technology ReviewQuantum computing, carbon nanotube transistors, even spintronics, are enticing possibilitiesbut none are obvious replacements for the promise that Gordon Moore first saw in a simple integrated circuit. We need the research investments now to find out, though. Because one prediction is pretty much certain to come true: were always going to want more computing power.

Flippy the Burger-Flipping Robot Is Changing the Face of Fast Food as We Know ItLuke Dormehl | Digital TrendsFlippy is the result of the Miso teams robotics expertise, coupled with that industry-specific knowledge. Its a burger-flipping robot arm thats equipped with both thermal and regular vision, which grills burgers to order while also advising human collaborators in the kitchen when they need to add cheese or prep buns for serving.

The Next Generation of Batteries Could Be Built by VirusesDaniel Oberhaus | Wired[MIT bioengineering professor Angela Belcher has] made viruses that can work with over 150 different materials and demonstrated that her technique can be used to manufacture other materials like solar cells. Belchers dream of zipping around in a virus-powered car still hasnt come true, but after years of work she and her colleagues at MIT are on the cusp of taking the technology out of the lab and into the real world.

Biggest Cosmic Explosion Ever Detected Left Huge Dent in SpaceHannah Devlin | The GuardianThe biggest cosmic explosion on record has been detectedan event so powerful that it punched a dent the size of 15 Milky Ways in the surrounding space. The eruption is thought to have originated at a supermassive black hole in the Ophiuchus galaxy cluster, which is about 390 million light years from Earth.

Star Treks Warp Speed Would Have Tragic ConsequencesCassidy Ward | SyFyThe various crews ofTreks slate of television shows and movies can get from here to there without much fanfare. Seeking out new worlds and new civilizations is no more difficult than gassing up the car and packing a cooler full of junk food. And they dont even need to do that! The replicators will crank out a bologna sandwich just like mom used to make. All thats left is to go, but what happens then?

Image Credit: sergio souza /Pexels

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This Week's Awesome Tech Stories From Around the Web (Through February 29) - Singularity Hub

IC Breakthroughs: Energy Harvesting, Quantum Computing, and a 96-Core Processor in Six Chiplets – News – All About Circuits

According to Moore's law, since the introduction of the first semiconductors, the number of transistors on an integrated circuit has doubled approximately once every 18 months.

However, now that transistors are starting to reach near-atomic sizes, their reduction is becoming increasingly problematic, and as such, this doubling effect is beginning to plateau.

One technology research institute, CEA-Leti, is developing techniques to increase the power of semiconductors.

But what are these new technologies and how will they affect modern electronics?

Developers are increasingly searching for efficient ways toreplace portable power sources that require charging or replacement.

However, such a feat is only possible if power can be extracted from the local environment, like in the instance of a device from the University of Massachusetts Amherst that powers small electronics from moisture in the air.

A more conventionalmethod for energy extraction is using the Peltier effect, which requires a heat differential (such as cold air on a warm wrist), but these are often cumbersome and require heat sinks.

Another method is the use of vibration energy from motion, whereby a cantilever vibrates a piezo element, converting the mechanical energy to electrical energy.

Butthese systems are problematic because they are often tuned for one frequency of vibration. This means that their efficiency is only maximized when external mechanical energy is of the same frequency.

This is where CEA-Letis energy harvesting system comes in.

The energy harvesting systemconverts mechanical energy into electrical energy to power an IC. While similar to a cantilever system, which converts mechanical motion into electrical energy using a piezo effect, the cantilever is electrically tunable, allowingit to match its resonant frequency to the peak frequency of the external mechanical force.

Using an adjustable resonant system increases the harvesting bandwidth by 446%from typical cantilever systems and increases energy efficiency by 94%. The energy needed to control the system is two orders of magnitude lower than what the system harvests; the system requires around 1 W while the energy harvested is between 100 W and 1 mW.

While quantum computing will bring some major changes to the field of computation, they are far from becoming commercialized.

Many hurdles, such as low-temperature requirements, make them difficult to put into everyday applications. But one area, in particular, that is problematic is their integration into standard circuitry.

In a study on energy-efficient quantum computing, researchers explain thatqubits, which are bits in superposition states,must be kept well away from external sources of energy. This is becauseany exposure to external energy puts the qubits at risk ofcollapsing their wavefunction. Such sources of energy can include magnetic field fluctuations, electromagnetic energy, and heat (mechanical vibration).

To make things more complicated, quantum computer circuitry is at some point required to interface with traditional electronic circuitry, such as analog and digital circuits. If these circuits are external to the quantum circuitry, then the issue of space and speed become an issue; remote circuitry takes more room, and the distance reduces the speed at which information can be accessed.

To address these issues, CEA-Leti hasdeveloped a quantum computing technology that combines qubits with traditional digital and analog circuitry on the same piece of silicon using standard manufacturing techniques.

The 28 nm FD-SOI process combines nA current-sensing analog circuitry, buffers, multiplexers, oscillators, and signal amplifiers with an on-chip double quantum dot whose operation is not affectedeven when using the traditional circuitry at digital frequencies up to 7 GHz and analog frequencies up to 3 GHz.

The IC, which operates at 110 mK, is able to provide nA current-sensing while operating on a power budget to prevent interference with the quantum dots, which is 40 times lower than competing technologies.

As the number of transistors on a chip increases, the chances of one failing also increases, thusdecreasingthe yield of wafers. One workaround is to make chips smaller and include fewer transistorswhile also connecting multiple chips together, thus increasingthe overall transistor count.

However, PCBs have issues with connecting multiple dies together. These issues may involve limited bandwidth and the inability to integrate other active circuitry required by the dies, such as power regulation.

CEA-Leti hasmade a breakthrough in IC technology with its active interposer layer and 3D stacked chips.

Namely, the team has developed a 96-core processor on six chiplets, 3D stacked on an active interposer.

Just like the PCB topology, CEA-Leti uses a layer with metal interconnects that connect different dies on a single base. Butunlike a PCB, the interconnection layer is a piece of semiconductor only 100 m thick.

What makes the interposer more impressive is that it isactive. It alsohas integrated circuitry, including transistors. Therefore, the interposer can integrate power regulators, multiplexers, and digital processors, meaningthat the diesdirectly attached to the imposers operate at high-speeds. They alsohave all their needed handling circuitry next to them.

The use of the active imposer also means that smaller ICs with reduced transistor counts can be combined to produce complex circuitry.This improves wafer yields, reduces their overall cost, and expands their capabilities.

These three technologies coming out of CEA-Leti give us a glimpse intoa future where ICs may generate their own power oreven be able to integrate quantum circuitry.

The energy harvesting technology may struggle to find its way into modern designs because most portable applications require relatively large amounts of power (compared to 1 mW) and these devices are often stationary.

The use of quantum circuitry with traditional construction techniques means that quantum security (which may become essential) can be integrated into everyday devicessuch as smartphones, tablets, and computers. Until quantum computing becomes commercial, though, this technology will likely remain niche.

Technologies such as the active imposer may be the first technology of the three discussed here to become widespread as it easily solves modern transistor reduction-related issues.

Is there a specific functionality you can't seem to find in an IC? What limitations do you feel are keeping researchers from making your "dream" IC breakthrough? Share your thoughts in the comments below.

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IC Breakthroughs: Energy Harvesting, Quantum Computing, and a 96-Core Processor in Six Chiplets - News - All About Circuits

Physicists Captured The Moment That An Atom Enters Quantum Measurement – Somag News

A team of physicists from Sweden, Germany and Spain managed to document the moments of transition of an electron by taking a series of images of strontium ion held in an electric field. Scientists research has attracted a lot of attention with the comments that the universe we experience in our daily lives is not like what we see when we try to look closely.

Objects are an extraordinary result of physics, and these objects can only be identified using a number of sets of probabilities. They all look like duplicates until they try to explore with light to determine their specific size and nature.

In the 1940s, the American-Hungarian mathematician John von Neumann thought that part of the quantum system, for example, the position of the orbital electron, would create enough quantum for all to give up the probable nature of its measurement.

Years later, a German theoretical physicist named Gerhart Lders disagreed with Neumanns assumptions, pointing out that some unstable qualities of a particles possibilities can circulate even while others are being clarified. Although physicists have agreed with Lders in theory, it is not easy to demonstrate experimentally based on measuring some naturally occurring actions in such a way that they do not interfere with each other.

The same quantum computer systemThe researchers placed the electron in a missing strontium atom, trapped the ion in a way to clarify which of the remaining electrons was inside, causing both to meet.

It is actually the same setup that is used in many quantum computers. Quantum computers calculate based on the probability of an objects state before measuring, which means they have an exponentially higher data processing potential than conventional computers.

Research sheds light on the inner workings of natureEvery time we measure the orbit of the electron, the answer will be whether the electron is in a lower or higher orbit, nothing will be between them, said physicist Fabian Pokorny from the University of Stockholm. These findings shed new light on the inner workings of nature and are consistent with the predictions of modern quantum physics, said colleague Markus Hennrich, a physicist researcher at the University of Stockholm.

The research is not the first experiment to show that the quantum leap in the probability of an electron is an expansion process, such as eruption of a volcano rather than a key. However, it is possible to say that the way the change took place adds some interesting details that allow such ideal measurements. Scientists experiments on the subject continue at full speed.

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Physicists Captured The Moment That An Atom Enters Quantum Measurement - Somag News

Top 10 Strategic Technology Breakthroughs That Will Transform Our Lives – Analytics Insight

The world is surrounded by technology technology that makes our jobs easy, the technology that makes our commute easy, the technology that makes out communication easy and so on. Hence, such advancements have turned into a boon to our lives while easing out numerous works that would conventionally take a long time to complete. Now that we look back we see so many new technologies have taken over the world that its nearly impossible to enlist them at once. And how further advancements will impact our lives in new ways we cannot even imagine.

MIT has drafted a list of top 10 strategic technology breakthroughs that will revolutionize our lives in the coming years.

An internet based on quantum physics will soon enable inherently secure communication. A team led by Stephanie Wehner, at Delft University of Technology, is building a network connecting four cities in the Netherlands entirely by means of quantum technology. Messages sent over this network will be unhackable.

The Delft network will be the first to transmit information between cities using quantum techniques from end to end.The technology relies on a quantum behavior of atomic particles called entanglement. Entangled photons cant be covertly read without disrupting their content.

Heres a definition of a hopeless case: a child with a fatal disease so exceedingly rare that not only is there no treatment, theres not even anyone in a lab coat studying it. Too rare to care, goes the saying.

Thats about to change, thanks to new classes of drugs that can be tailored to a persons genes. If an extremely rare disease is caused by a specific DNA mistakeas several thousand aretheres now at least a fighting chance for a genetic fix through hyper-personalized medicine. One such case is that of Mila Makovec, a little girl suffering from a devastating illness caused by a unique genetic mutation, who got a drug manufactured just for her. Her case made the New England Journal of Medicine in October after doctors moved from a readout of her genetic error to treatment in just a year. They called the drug milasen, after her. The treatment hasnt cured Mila. But it seems to have stabilized her condition: it has reduced her seizures, and she has begun to stand and walk with assistance.

Milas treatment was possible because creating a gene medicine has never been faster or had a better chance of working. The new medicines might take the form of gene replacement, gene editing, or antisense (the type Mila received), a sort of molecular eraser, which erases or fixes erroneous genetic messages. What the treatments have in common is that they can be programmed, in digital fashion and with digital speed, to correct or compensate for inherited diseases, letter for DNA letter.

Last June Facebook unveiled a global digital currency called Libra. The idea triggered a backlash and Libra may never launch, at least not in the way it was originally envisioned. But its still made a difference: just days after Facebooks announcement, an official from the Peoples Bank of China implied that it would speed the development of its own digital currency in response. Now China is poised to become the first major economy to issue a digital version of its money, which it intends as a replacement for physical cash.

The first wave of a new class of anti-aging drugs has begun human testing. These drugs wont let you live longer (yet) but aim to treat specific ailments by slowing or reversing a fundamental process of aging.

The drugs are called senolyticsthey work by removing certain cells that accumulate as we age. Known as senescent cells, they can create low-level inflammation that suppresses normal mechanisms of cellular repair and creates a toxic environment for neighboring cells.

The universe of molecules that could be turned into potentially life-saving drugs is mind-boggling in size: researchers estimate the number at around 1060. Thats more than all the atoms in the solar system, offering virtually unlimited chemical possibilitiesif only chemists could find the worthwhile ones.

Now machine-learning tools can explore large databases of existing molecules and their properties, using the information to generate new possibilities. This AI enabled technology could make it faster and cheaper to discover new drug candidates.

Satellites that can beam a broadband connection to internet terminals. As long as these terminals have a clear view of the sky, they can deliver the internet to any nearby devices. SpaceX alone wants to send more than 4.5 times more satellites into orbit this decade than humans have ever launched since Sputnik.

These mega-constellations are feasible because we have learned how to build smaller satellites and launch them more cheaply. During the space shuttle era, launching a satellite into space cost roughly US$24,800 per pound. A small communications satellite that weighed four tons cost nearly $200 million to fly up.

Quantum computers store and process data in a way completely different from the ones were all used to. In theory, they could tackle certain classes of problems that even the most powerful classical supercomputer imaginable would take millennia to solve, like breaking todays cryptographic codes or simulating the precise behavior of molecules to help discover new drugs and materials.

There have been working quantum computers for several years, but its only under certain conditions that they outperform classical ones, and in October Google claimed the first such demonstration of quantum supremacy. A computer with 53 qubitsthe basic unit of quantum computationdid a calculation in a little over three minutes that, by Googles reckoning, would have taken the worlds biggest supercomputer 10,000 years, or 1.5 billion times as long. IBM challenged Googles claim, saying the speedup would be a thousandfold at best; even so, it was a milestone, and each additional qubit will make the computer twice as fast.

AI has a problem: in the quest to build more powerful algorithms, researchers are using ever greater amounts of data and computing power and relying on centralized cloud services. This not only generates alarming amounts of carbon emissions but also limits the speed and privacy of AI applications.

But a countertrend of tiny AI is changing that. Tech giants and academic researchers are working on new algorithms to shrink existing deep-learning models without losing their capabilities. Meanwhile, an emerging generation of specialized AI chips promises to pack more computational power into tighter physical spaces, and train and run AI on far less energy.

In 2020, the US government has a big task: collect data on the countrys 330 million residents while keeping their identities private. The data is released in statistical tables that policymakers and academics analyze when writing legislation or conducting research. By law, the Census Bureau must make sure that it cant lead back to any individuals.

But there are tricks to de-anonymize individuals, especially if the census data is combined with other public statistics.

So the Census Bureau injects inaccuracies, or noise, into the data. It might make some people younger and others older, or label some white people as black and vice versa while keeping the totals of each age or ethnic group the same. The more noise you inject, the harder the de-anonymization becomes.

Differential privacy is a mathematical technique that makes this process rigorous by measuring how much privacy increases when noise is added. The method is already used by Apple and Facebook to collect aggregate data without identifying particular users.

Ten days after Tropical Storm Imelda began flooding neighborhoods across the Houston area last September, a rapid-response research team announced that climate change almost certainly played a role.

The group, World Weather Attribution, had compared high-resolution computer simulations of worlds where climate change did and didnt occur. In the former, the world we live in, the severe storm was as much as 2.6 times more likelyand up to 28% more intense.

Earlier this decade, scientists were reluctant to link any specific event to climate change. But many more extreme-weather attribution studies have been done in the last few years, and rapidly improving tools and techniques have made them more reliable and convincing.

This has been made possible by a combination of advances. For one, the lengthening record of detailed satellite data is helping us understand natural systems. Also, increased computing power means scientists can create higher-resolution simulations and conduct many more virtual experiments.

These and other improvements have allowed scientists to state with increasing statistical certainty that yes, global warming is often fueling more dangerous weather events.

By disentangling the role of climate change from other factors, the studies are telling us what kinds of risks we need to prepare for, including how much flooding to expect and how severe heatwaves will get as global warming becomes worse. If we choose to listen, they can help us understand how to rebuild our cities and infrastructure for a climate-changed world.

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Top 10 Strategic Technology Breakthroughs That Will Transform Our Lives - Analytics Insight

The $600 quantum computer that could spell the end for conventional encryption – BetaNews

Concerns that quantum computing could place current encryption techniques at risk have been around for some time.

But now cybersecurity startup Active Cypher has built a password-hacking quantum computer to demonstrate that the dangers are very real.

Using easily available parts costing just $600, Active Cyphers founder and CTO, Dan Gleason, created a portable quantum computer dubbed QUBY (named after qubits, the basic unit of quantum information). QUBY runs recently open-sourced quantum algorithms capable of executing within a quantum emulator that can perform cryptographic cracking algorithms. Calculations that would have otherwise taken years on conventional computers are now performed in seconds on QUBY.

Gleason explains, "After years of foreseeing this danger and trying to warn the cybersecurity community that current cybersecurity protocols were not up to par, I decided to take a week and move my theory to prototype. I hope that QUBY can increase awareness of how the cyberthreats of quantum computing are not reserved to billion-dollar state-sponsored projects, but can be seen on much a smaller, localized scale."

The concern is that quantum computing will lead to the sunset of AES-256 (the current encryption standard), meaning all encrypted files could one day be decrypted. "The disruption that will come about from that will be on an unprecedented, global scale. It's going to be massive," says Gleason. Modelled after the SADM, a man-portable nuclear weapon deployed in the 1960s, QUBY was downsized so that it fits in a backpack and is therefore untraceable. Low-level 'neighborhood hackers' have already been using portable devices that can surreptitiously swipe credit card information from an unsuspecting passerby. Quantum compute emulating devices will open the door for significantly more cyberthreats.

In response to the threat, Active Cypher has developed advanced dynamic cyphering encryption that is built to be quantum resilient. Gleason explains that, "Our encryption is not based on solving a mathematical problem. It's based on a very large, random key which is used in creating the obfuscated cyphertext, without any key information within the cyphertext, and is thus impossible to be derived through prime factorization -- traditional brute force attempts which use the cyphertext to extract key information from patterns derived from the key material."

Active Cypher's completely random cyphertext cannot be deciphered using even large quantum computers since the only solution to cracking the key is to try every possible combination of the key, which will produce every known possible output of the text, without knowledge of which version might be the correct one. "In other words, you'll find a greater chance of finding a specific grain of sand in a desert than cracking this open," says Gleason.

Active Cypher showcased QUBY in early February at Ready -- an internal Microsoft conference held in Seattle. The prototype will also be presented at RSA in San Francisco later this month.

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