Feed aggregator

Quantum Internet Draws Near Thanks To Entangled Memory Breakthroughs

Slashdot.org - Wed, 05/15/2024 - 17:40
An anonymous reader quotes a report from New Scientist: Efforts to build a global quantum internet have received a boost from two developments in quantum information storage that could one day make it possible to communicate securely across hundreds or thousands of kilometers. The internet as it exists today involves sending strings of digital bits, or 0s and 1s, in the form of electrical or optical signals, to transmit information. A quantum internet, which could be used to send unhackable communications or link up quantum computers, would use quantum bits instead. These rely on a quantum property called entanglement, a phenomenon in which particles can be linked and measuring one particle instantly influences the state of another, no matter how far apart they are. Sending these entangled quantum bits, or qubits, over very long distances, requires a quantum repeater, a piece of hardware that can store the entangled state in memory and reproduce it to transmit it further down the line. These would have to be placed at various points on a long-distance network to ensure a signal gets from A to B without being degraded. Quantum repeaters don't yet exist, but two groups of researchers have now demonstrated long-lasting entanglement memory in quantum networks over tens of kilometers, which are the key characteristics needed for such a device. Can Knaut at Harvard University and his colleagues set up a quantum network consisting of two nodes separated by a loop of optical fibre that spans 35 kilometers across the city of Boston. Each node contains both a communication qubit, used to transmit information, and a memory qubit, which can store the quantum state for up to a second. "Our experiment really put us in a position where we're really close to working on a quantum repeater demonstration," says Knaut. To set up the link, Knaut and his team entangled their first node, which contains a type of diamond with an atom-sized hole in it, with a photon that they sent to their second node, which contains a similar diamond. When the photon arrives at the second diamond, it becomes entangled with both nodes. The diamonds are able to store this state for a second. A fully functioning quantum repeater using similar technology could be demonstrated in the next couple of years, says Knaut, which would enable quantum networks connecting cities or countries. In separate work, Xiao-Hui Bao at the University of Science and Technology of China and his colleagues entangled three nodes together, each separated by around 10 kilometers in the city of Hefei. Bao and his team's nodes use supercooled clouds of hundreds of millions of rubidium atoms to generate entangled photons, which they then sent across the three nodes. The central of the three nodes is able to coordinate these photons to link the atom clouds, which act as a form of memory. The key advance for Bao and his team's network is to match the frequency of the photons meeting at the central node, which will be crucial for quantum repeaters connecting different nodes. While the storage time was less than Knaut's team, at 100 microseconds, it is still long enough to perform useful operations on the transmitted information.

Read more of this story at Slashdot.

Google Opens Up Its Smart Home To Everyone

Slashdot.org - Wed, 05/15/2024 - 17:00
Google is opening up API access to its Google Home smart home platform, allowing app developers to access over 600 million connected devices and tap into the Google Home automation engine. In addition, Google announced that it'll be turning Google TVs into Google Home hubs and Matter controllers. The Verge reports: The Home APIs can access any Matter device or Works with Google Home device, and allows developers to build their own experiences using Google Home devices and automations into their apps on both iOS and Android. This is a significant move for Google in opening up its smart home platform, following shutting down its Works with Nest program back in 2019. [...] The Home APIs are already available to Google's early access partners, and Google is opening up a waitlist for any developer to sign up today. "We are opening up access on a rolling basis so they can begin building and testing within their apps," Anish Kattukaran, head of product at Google Home and Nest, told The Verge. "The first apps using the home APIs will be able to publish to the Play and App stores in the fall." The access is not just limited to smart home developers. In the blog post, Matt Van Der Staay, engineering director at Google Home, said the Home APIs could be used to connect smart home devices to fitness or delivery apps. "You can build a complex app to manage any aspect of a smart home, or simply integrate with a smart device to solve pain points -- like turning on the lights automatically before the food delivery driver arrives." The APIs allow access to most devices connected to Google Home and to the Google Home structure, letting apps control and manage devices such as Matter light bulbs or the Nest Learning Thermostat. They also leverage Google Home's automation signals, such as motion from sensors, an appliance's mode changing, or Google's Home and Away mode, which uses various signals to determine if a home is occupied. [...] What's also interesting here is that developers will be able to use the APIs to access and control any device that works with the new smart home standard Matter and even let people set up Matter devices directly in their app. This should make it easier for them to implement Matter into their apps, as it will add devices to the Google Home fabric, so they won't have to develop their own. In addition, Google announced that it's vastly expanding its Matter infrastructure by turning Google TVs into Google Home hubs and Matter controllers. Any app using the APIs would need a Google hub in a customer's home in order to control Matter devices locally. Later this year, Chromecast with Google TV, select panel TVs with Google TV running Android 14 or higher, and some LG TVs will be upgraded to become Google Home hubs. Additionally, Kattukaran said Google will upgrade all of its existing home hubs -- which include Nest Hub (second-gen), Nest Hub Max, and Google Wifi -- with a new ability called Home runtime. "With this update, all hubs for Google Home will be able to directly route commands from any app built with Home APIs (such as the Google Home app) to a customer's Matter device locally, when the phone is on the same Wi-Fi network as the hub," said Kattukaran. This means you should see "significant latency improvements using local control via a hub for Google Home," he added.

Read more of this story at Slashdot.

Apple Brings Eye-Tracking To Recent iPhones and iPads

Slashdot.org - Wed, 05/15/2024 - 16:20
This week, in celebration of Global Accessibility Awareness Day, Apple is introducing several new accessibility features. Noteworthy additions include eye-tracking support for recent iPhone and iPad models, customizable vocal shortcuts, music haptics, and vehicle motion cues. Engadget reports: The most intriguing feature of the set is the ability to use the front-facing camera on iPhones or iPads (at least those with the A12 chip or later) to navigate the software without additional hardware or accessories. With this enabled, people can look at their screen to move through elements like apps and menus, then linger on an item to select it. That pause to select is something Apple calls Dwell Control, which has already been available elsewhere in the company's ecosystem like in Mac's accessibility settings. The setup and calibration process should only take a few seconds, and on-device AI is at work to understand your gaze. It'll also work with third-party apps from launch, since it's a layer in the OS like Assistive Touch. Since Apple already supported eye-tracking in iOS and iPadOS with eye-detection devices connected, the news today is the ability to do so without extra hardware. [...] There are plenty more features coming to the company's suite of products, including Live Captions in VisionOS, a new Reader mode in Magnifier, support for multi-line braille and a virtual trackpad for those who use Assistive Touch. It's not yet clear when all of these announced updates will roll out, though Apple has historically made these features available in upcoming versions of iOS. With its developer conference WWDC just a few weeks away, it's likely many of today's tools get officially released with the next iOS. Apple detailed all the new features in a press release.

Read more of this story at Slashdot.

Android 15 Gets 'Private Space,' Theft Detection, and AV1 Support

Slashdot.org - Wed, 05/15/2024 - 15:40
An anonymous reader quotes a report from Ars Technica: Google's I/O conference is still happening, and while the big keynote was yesterday, major Android beta releases have apparently been downgraded to Day 2 of the show. Google really seems to want to be primarily an AI company now. Android already had some AI news yesterday, but now that the code-red requirements have been met, we have actual OS news. One of the big features in this release is "Private Space," which Google says is a place where users can "keep sensitive apps away from prying eyes, under an additional layer of authentication." First, there's a new hidden-by-default portion of the app drawer that can hold these sensitive apps, and revealing that part of the app drawer requires a second round of lock-screen authentication, which can be different from the main phone lock screen. Just like "Work" apps, the apps in this section run on a separate profile. To the system, they are run by a separate "user" with separate data, which your non-private apps won't be able to see. Interestingly, Google says, "When private space is locked by the user, the profile is paused, i.e., the apps are no longer active," so apps in a locked Private Space won't be able to show notifications unless you go through the second lock screen. Another new Android 15 feature is "Theft Detection Lock," though it's not in today's beta and will be out "later this year." The feature uses accelerometers and "Google AI" to "sense if someone snatches your phone from your hand and tries to run, bike, or drive away with it." Any of those theft-like shock motions will make the phone auto-lock. Of course, Android's other great theft prevention feature is "being an Android phone." Android 12L added a desktop-like taskbar to the tablet UI, showing recent and favorite apps at the bottom of the screen, but it was only available on the home screen and recent apps. Third-party OEMs immediately realized that this bar should be on all the time and tweaked Android to allow it. In Android 15, an always-on taskbar will be a normal option, allowing for better multitasking on tablets and (presumably) open foldable phones. You can also save split-screen-view shortcuts to the taskbar now. An Android 13 developer feature, predictive back, will finally be turned on by default. When performing the back gesture, this feature shows what screen will show up behind the current screen you're swiping away. This gives a smoother transition and a bit of a preview, allowing you to cancel the back gesture if you don't like where it's going. [...] Because this is a developer release, there are tons of under-the-hood changes. Google is a big fan of its own next-generation AV1 video codec, and AV1 support has arrived on various devices thanks to hardware decoding being embedded in many flagship SoCs. If you can't do hardware AV1 decoding, though, Android 15 has a solution for you: software AV1 decoding.

Read more of this story at Slashdot.

100 things we announced at I/O 2024100 things we announced at I/O 2024Contributor

GoogleBlog - Wed, 05/15/2024 - 15:00
Learn more about (almost) everything announced at Google I/O 2024.Learn more about (almost) everything announced at Google I/O 2024.
Categories: Technology

Walmart's Reign as America's Biggest Retailer Is Under Threat

Slashdot.org - Wed, 05/15/2024 - 15:00
With Amazon on its heels, the nation's biggest company by revenue is hunting for ways to continue growing. From a report: For a decade, Walmart has reigned as the nation's biggest company by revenue. Its sales last year added up to $648 billion -- more than $1.2 million a minute. That status comes with benefits. It gives Walmart power in negotiations with product manufacturers and in dealing with government officials over policy issues. It's also a point of pride: Job postings often tout working at the "Fortune 1" company as a perk. Its reign is looking shaky lately [non-paywalled link]. If current sales trends persist, Amazon is likely to overtake Walmart soon. Amazon reported $575 billion in total revenue last year, up 12% from the previous year, compared with Walmart's revenue growth of 6%. Walmart's behemoth size means that to meet its own sales target of around 4% growth each year, the company has to find an additional $26 billion in sales this year. That's no easy task. About 90% of Americans already shop at the retailer. The pandemic and rising inflation boosted Walmart's revenue by $100 billion since 2019. It faces continued uncertainty in consumer confidence and while it's spending in some areas, it's pulling back in others. Earlier this week, Walmart told workers it would cut hundreds of corporate jobs and ask most remote workers to move to offices. While Amazon's and Walmart's businesses compete head on, there are big differences. Amazon earns much of its profit from non-retail operations such as cloud computing and advertising, while grabbing retail market share with fast shipping. Walmart gets the bulk of its sales and profits from U.S. stores, while growing side businesses like advertising and digital sales. Walmart executives are most wary of Amazon's ability to keep increasing profits through its non-retail business, while eating more of the retail landscape with ever-faster shipping and a bigger product selection, people familiar with the company said. Internally some executives are highlighting Walmart's role as a good corporate citizen and emphasizing that it's important to be the best at serving customers and workers, not just the biggest, say some of those people. Its scale can also have downsides, say some, like outsize attention on every misstep.

Read more of this story at Slashdot.

Troubling iOS 17.5 Bug Reportedly Resurfacing Old Deleted Photos

Slashdot.org - Wed, 05/15/2024 - 14:20
An anonymous reader shares a report: There are concerning reports on Reddit that Apple's latest iOS 17.5 update has introduced a bug that causes old photos that were deleted -- in some cases years ago -- to reappear in users' photo libraries. After updating their iPhone, one user said they were shocked to find old NSFW photos that they deleted in 2021 suddenly showing up in photos marked as recently uploaded to iCloud. Other users have also chimed in with similar stories. "Same here," said one Redditor. "I have four pics from 2010 that keep reappearing as the latest pics uploaded to iCloud. I have deleted them repeatedly." "Same thing happened to me," replied another user. "Six photos from different times, all I have deleted. Some I had deleted in 2023." More reports have been trickling in overnight. One said: "I had a random photo from a concert taken on my Canon camera reappear in my phone library, and it showed up as if it was added today."

Read more of this story at Slashdot.

Senators Urge $32 Billion in Emergency Spending on AI After Finishing Yearlong Review

Slashdot.org - Wed, 05/15/2024 - 12:29
A bipartisan group of four senators led by Majority Leader Chuck Schumer is recommending that Congress spend at least $32 billion over the next three years to develop AI and place safeguards around it, writing in a report released Wednesday that the U.S. needs to "harness the opportunities and address the risks" of the quickly developing technology. AP: The group of two Democrats and two Republicans said in an interview Tuesday that while they sometimes disagreed on the best paths forward, it was imperative to find consensus with the technology taking off and other countries like China investing heavily in its development. They settled on a raft of broad policy recommendations that were included in their 33-page report. While any legislation related to AI will be difficult to pass, especially in an election year and in a divided Congress, the senators said that regulation and incentives for innovation are urgently needed.

Read more of this story at Slashdot.

Android’s theft protection features keep your device and data safeAndroid’s theft protection features keep your device and data safeVice President, Product, Trust & Growth

GoogleBlog - Wed, 05/15/2024 - 12:00
Android rolls out theft protection features to safeguard your data before, during and after a theft incident.Android rolls out theft protection features to safeguard your data before, during and after a theft incident.
Categories: Technology

10 updates coming to the Android ecosystem10 updates coming to the Android ecosystemSenior Director, Global Android Product Marketing

GoogleBlog - Wed, 05/15/2024 - 12:00
From Theft Detection Lock to casting on Rivian to Wear OS 5 updates, here’s what’s coming to Android 15 and its device ecosystem.From Theft Detection Lock to casting on Rivian to Wear OS 5 updates, here’s what’s coming to Android 15 and its device ecosystem.
Categories: Technology

Intel's New Thunderbolt Share Provides File and Screen Sharing Without Hurting Network Performance

Slashdot.org - Wed, 05/15/2024 - 11:42
Intel unveiled Thunderbolt Share on Wednesday with which it promises to streamline screen and file sharing between two PCs. Tom's Hardware: Thunderbolt Share will allow PC owners to connect their two computers with a wired connection that leverages Thunderbolt's speed (40Gbps or higher), low latency, and built-in security. It allows PC-to-PC access that shares the screen, keyboard, mouse, and storage. The software also enables folder synchronization or easy drag-and-drop file transfer between the computers. [...] Thunderbolt Share also provides uncompressed screen sharing between two PCs in the original resolution of the source computer. It also claims low latency for a smooth, responsive experience that includes the screen, keyboard, and mouse with full HD screen mirroring at up to 60 frames per second (fps). Higher resolutions could result in fewer frames per second, but Ziller said it would still be a "great experience."

Read more of this story at Slashdot.

Syndicate content
Comment