Accessing Wolfram|Alpha’s computational knowledge with ChatGPT—an ideal alliance of precise combination with human-like expression of ideas. Stephen Wolfram explains how.
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That general question is still hard to answer, again in part because of those pesky errors. (Future quantum machines will compensate for their imperfections using a technique called quantum error correction, but that capability is still a ways off.) Is it possible to get the hoped-for runaway quantum advantage even with uncorrected errors?
Most researchers suspected the answer was no, but they couldn’t prove it for all cases. Now, in a paper posted to the preprint server arxiv.org, a team of computer scientists has taken a major step toward a comprehensive proof that error correction is necessary for a lasting quantum advantage in random circuit sampling — the bespoke problem that Google used to show quantum supremacy. They did so by developing a classical algorithm that can simulate random circuit sampling experiments when errors are present.
Ralph Lydic, professor in the UT Department of Psychology, and Dmitry Bolmatov, a research assistant professor in the UT Department of Physics and Astronomy, are part of a UT/ORNL research team studying how bio-inspired materials might inform the design of next-generation computers. Their results, published recently in the Proceedings of the National Academy of Sciences, could have big implications for both edge computing and human health.
Scientists at ORNL and UT discovered an artificial cell membrane is capable of long-term potentiation, or LTP, a hallmark of biological learning and memory. This is the first evidence that a cell membrane alone—without proteins or other biomolecules embedded within it—is capable of LTP that persists for many hours. It is also the first identified nanoscale structure in which memory can be encoded.
“When facilities were shut down as a result of COVID, this led us to pivot away from our usual membrane research,” said John Katsaras, a biophysicist in ORNL’s Neutron Sciences Directorate specializing in neutron scattering and the study of biological membranes at ORNL. “Together with postdoc Haden Scott, we decided to revisit a system previously studied by Pat Collier and co-workers, this time with an entirely different electrical stimulation protocol that we termed ‘training.’”.
Google announced a new HD version of its Maps service for cars with the Android Automotive operating system. The new HD maps will provide more detailed road markings, lane-level localization, road barriers and signs. The feature will debut on the Volvo EX90 and Polestar 3 models and will benefit from the lidar, radar and camera sensors on vehicles to ensure a safer driving experience.
Volvo EX90 using Google HD maps.
Continue reading “Google announces new high-definition maps, Android Auto redesign rolling out” »
The study was conducted by inspecting 215,000 land-based glaciers worldwide.
Climate change is a primal environmental problem of our century, and it’s getting worse day by day. The melting of glaciers increases the temperatures on the Earth and causes extreme cold. According to new research, glaciers melt faster than we thought. Apparently, two-thirds of glaciers on track will be disappeared by 2100, researchers say.
As reported by Phys.
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In December, reports suggested that Microsoft had acquired Fungible, a startup fabricating a type of data center hardware known as a data processing unit (DPU), for around $190 million. Today, Microsoft confirmed the acquisition but not the purchase price, saying that it plans to use Fungible’s tech and team to deliver “multiple DPU solutions, network innovation and hardware systems advancements.”
“Fungible’s technologies help enable high-performance, scalable, disaggregated, scaled-out data center infrastructure with reliability and security,” Girish Bablani, the CVP of Microsoft’s Azure Core division, wrote in a blog post. “Today’s announcement further signals Microsoft’s commitment to long-term differentiated investments in our data center infrastructure, which enhances our broad range of technologies and offerings including offloading, improving latency, increasing data center server density, optimizing energy efficiency and reducing costs.”
A DPU is a dedicated piece of hardware designed to handle certain data processing tasks, including security and network routing for data traffic. The approach is intended to help reduce the load on CPUs and GPUs for core computing tasks related to a given workload.
A new algorithm is probably not efficient enough to crack current encryption keys — but that’s no reason for complacency, researchers say.
A new miniscule nitrogen dioxide sensor could help protect the environment from vehicle pollutants that cause lung disease and acid rain.
Researchers from TMOS, the Australian Research Council Center of Excellence for Transformative Meta-Optical Systems have developed a sensor made from an array of nanowires, in a square one fifth of a millimeter per side, which means it could be easily incorporated into a silicon chip.
In research published in the latest issue of Advanced Materials, Ph.D. scholar at the Center’s Australian National University team and lead author Shiyu Wei describes the sensor as requiring no power source, as it runs on its own solar powered generator.
For the first time, physicists at the Brookhaven National Laboratory have come across a novel type of quantum entanglement, the extremely bizarre phenomenon that occurs when a pair of particles remain connected even when separated by galactic distances. Thanks to this effect, the researchers were also able to peer inside the atomic nuclei with unprecedented detail.
Quantum entanglement is a strange and fascinating phenomenon that has puzzled scientists for decades. It occurs when pairs of particles become so closely connected that one can no longer be described without the other, no matter how far apart they may be. Even more strange, changing one will instantly trigger a change in its partner, even if it was on the other side of the universe. In theory, this effect would enable faster-than-light communication if you encode the changes in these states with 1s and 0s.
This concept may sound impossible to us, as it goes against our classical understanding of physics, and it even unnerved Albert Einstein, who referred to it as “spooky action at a distance.” However, numerous experiments have consistently proven the existence of quantum entanglement by manipulating the properties of the entangled particles, such as their spin or polarization, and observing the effects on the other particle. Today, quantum entanglement forms the backbone of emerging technologies such as quantum computers and networks.
