Physicists Say They’ve Built an Atom Laser That Can Run ‘Forever’

A new breakthrough has allowed physicists to create a beam of atoms that behaves the same way as a laser, and that can theoretically stay on “forever.” ScienceAlert reports: At the root of the atom laser is a state of matter called a Bose-Einstein condensate, or BEC. A BEC is created by cooling a cloud of bosons to just a fraction above absolute zero. At such low temperatures, the atoms sink to their lowest possible energy state without stopping completely. When they reach these low energies, the particles’ quantum properties can no longer interfere with each other; they move close enough to each other to sort of overlap, resulting in a high-density cloud of atoms that behaves like one ‘super atom’ or matter wave. However, BECs are something of a paradox. They’re very fragile; even light can destroy a BEC. Given that the atoms in a BEC are cooled using optical lasers, this usually means that a BEC’s existence is fleeting.

Atom lasers that scientists have managed to achieve to date have been of the pulsed, rather than continuous variety; and involve firing off just one pulse before a new BEC needs to be generated. In order to create a continuous BEC, a team of researchers at the University of Amsterdam in the Netherlands realized something needed to change. “In previous experiments, the gradual cooling of atoms was all done in one place. In our setup, we decided to spread the cooling steps not over time, but in space: we make the atoms move while they progress through consecutive cooling steps,” explained physicist Florian Schreck. “In the end, ultracold atoms arrive at the heart of the experiment, where they can be used to form coherent matter waves in a BEC. But while these atoms are being used, new atoms are already on their way to replenish the BEC. In this way, we can keep the process going — essentially forever.” The research has been published in the journal Nature.

Read more of this story at Slashdot.

Valve’s Steam Deck Makes a Brilliant Case Against Walled Gardens

“Unlike practically every major game console that’s come before it, the Steam Deck, from PC gaming giant Valve, doesn’t lock users into one ecosystem,” writes Fast Company’s Jared Newman. “While Valve’s own Steam store is the default way to buy and play games, the Steam Deck also lets users install whatever software they want on the device’s Linux-based operating system. The experience has been liberating…” From the report: In recent weeks, I’ve gorged on weird indie creations from itch.io, classic games from GOG.com, and free games from the Epic Games Store. I’ve used Plexamp to stream my personal music collection in place of in-game soundtracks, and I’ve used Vivaldi to browse the web in the Steam Deck’s desktop mode. You don’t have to use your Steam Deck this way, but just being knowing that it’s an option makes the device more capable and personal. The tech industry is filled with companies that seem deathly afraid of this model, either because they don’t trust their users or don’t want to risk weakening their own ecosystems. By taking the opposite approach, Valve is proving that open platforms aren’t so catastrophic, and it elevates the Steam Deck from yet another gadget into the most exciting consumer electronics device in years. […]

Valve could have easily used the Steam Deck to lock players into its own ecosystem. It could have opted not to include a desktop mode and withheld instructions on how to lift its read-only restrictions. It could have discouraged users from installing different operating systems and made its recovery tools unavailable to the public. Console makers have long insisted that such restrictions are necessary for the good of their platforms. In 2020, for instance, Microsoft argued that because console makers sell their hardware at or below cost to create a market for their software, they shouldn’t have to accommodate third-party app stores or sideloading.

Similar arguments have spilled out into the broader mobile app business as well. In response to a lawsuit from Epic Games, Apple has claimed that its investments in the App Store wouldn’t be feasible if it couldn’t force developers to use its in-app purchase mechanisms. Some defenders of Apple’s viewpoint, such as Daring Fireball’s John Gruber, have argued that iOS is more like a game console than a PC platform. So, it’s all the more remarkable that Valve ignored all this hand-wringing and made the Steam Deck a haven for tinkerers. Instead of trying to shut out competitors, the company is betting that its own store will prevail on quality. If the Steam Deck successful — as it appears to be so far — it could upend years of conventional wisdom around walled gardens and become a threat to other consoles in more ways than one.

Read more of this story at Slashdot.

DRAM Prices To Drop 3-8% Due To Ukraine War, Inflation

Taiwanese research firm TrendForce said Monday that DRAM pricing for commercial buyers is forecast to drop around three to eight percent across those markets in the third quarter compared to the previous three months. Even prices for DDR5 modules in the PC market could drop as much as five percent from July to September. The Register reports: This could result in DRAM buyers, such as system vendors and distributors, reducing prices for end users if they hope to stimulate demand in markets like PC and smartphones where sales have waned. We suppose they could try to profit on the decreased memory prices, but with many people tightening their budgets, we hope this won’t be the case. The culprit for the DRAM price drop is one that we’ve been hearing a great deal about in the past few months: weaker demand for consumer electronics, including PCs and smartphones, as a result of high inflation and Russia’s ongoing invasion of Ukraine, according to TrendForce.

The weaker consumer demand means DRAM inventories are building up at system vendors and distributors, which means they don’t need to buy as much in the near future. This, in turn, is why memory prices are dropping, the research firm said. On the PC side, DDR4 memory pricing is expected to drop three to eight percent in the third quarter of 2022 after only seeing a zero to five percent decline in the second quarter. DDR5 pricing, on the other hand, is set to drop by only zero to five percent in Q3 after seeing a three to eight percent plummet in the previous quarter. For certain DRAM products, prices could see a steeper decline of more than eight percent, according to TrendForce, though the firm didn’t say which products this would include. TrendForce said PC makers are focused on getting rid of their existing DRAM inventories, and a continuously “sluggish” market means they’ll be reticent to buy much more memory.

Read more of this story at Slashdot.

Rutgers Scientist Develops Antimicrobial, Plant-Based Food Wrap Designed To Replace Plastic

Aiming to produce environmentally friendly alternatives to plastic food wrap and containers, a Rutgers scientist has developed a biodegradable, plant-based coating that can be sprayed on foods, guarding against pathogenic and spoilage microorganisms and transportation damage. From a report: Their article, published in the science journal Nature Food, describes the new kind of packaging technology using the polysaccharide/biopolymer-based fibers. Like the webs cast by the Marvel comic book character Spider-Man, the stringy material can be spun from a heating device that resembles a hair dryer and “shrink-wrapped” over foods of various shapes and sizes, such as an avocado or a sirloin steak. The resulting material that encases food products is sturdy enough to protect bruising and contains antimicrobial agents to fight spoilage and pathogenic microorganisms such as E. coli and listeria.

The research paper includes a description of the technology called focused rotary jet spinning, a process by which the biopolymer is produced, and quantitative assessments showing the coating extended the shelf life of avocados by 50 percent. The coating can be rinsed off with water and degrades in soil within three days, according to the study. […] The paper describes how the new fibers encapsulating the food are laced with naturally occurring antimicrobial ingredients — thyme oil, citric acid and nisin. Researchers in the Demokritou research team can program such smart materials to act as sensors, activating and destroying bacterial strains to ensure food will arrive untainted. This will address growing concern over food-borne illnesses as well as lower the incidence of food spoilage […].

Read more of this story at Slashdot.

Apple Will Now Allow Developers To Transfer Ownership of Apps That Use iCloud

“The most impactful change to come out of WWDC had nothing to do with APIs, a new framework or any hardware announcement,” writes Jordan Morgan via Daring Fireball. “Instead, it was a change I’ve been clamoring for the last several years — and it’s one that’s incredibly indie friendly. As you’ve no doubt heard by now, I’m of course talking about iCloud enabled apps now allowing app transfers.” 9to5Mac explains how it works: According to Apple, you already could transfer an app when you’ve sold it to another developer or you would want to move it to another App Store Connect account or organization. You can also transfer the ownership of an app to another developer without removing it from the App Store. The company said: “The app retains its reviews and ratings during and after the transfer, and users continue to have access to future updates. Additionally, when an app is transferred, it maintains its Bundle ID — it’s not possible to update the Bundle ID after a build has been uploaded for the app.”

The news here is that it’s easier for developers to transfer the ownership of apps that use iCloud. Apple said that if your app uses any of the following, it will be transferred to the transfer recipient after they accept the app transfer: iCloud to store user data; iCloud containers; and KVS identifiers are associated with the app.

The company said: “If multiple apps on your account share a CloudKit container, the transfer of one app will disable the other apps’ ability to read or store data using the transferred CloudKit container. Additionally, the transferor will no longer have access to user data for the transferred app via the iCloud dashboard. Any app updates will disable the app’s ability to read or store data using the transferred CloudKit container. If your app uses iCloud Key-Value Storage (KVS), the full KVS value will be embedded in any new provisioning profiles you create for the transferred app. Update your entitlements plist with the full KVS value in your provisioning profile.” You can learn more about the news via this Apple Developer page.

Read more of this story at Slashdot.

Tencent Forms ‘Extended Reality’ Unit

China’s Tencent has officially announced the formation of an “extended reality” unit, “formally placing its bets on the metaverse concept of virtual worlds,” reports Reuters. From the report: The unit is tasked with building up the extended reality business for Tencent including both software and hardware, the sources said, adding that it will be led by Tencent Games Global’s Chief Technology Officer Li Shen and will be part of the company’s Interactive Entertainment business group. Two of the sources said the unit will eventually have over 300 staff, a generous figure given how Tencent has been cost cutting and slowing down hiring. However, they also cautioned that the hiring plans are still fluid, as the company will adjust the unit’s headcount based on its performance. The unit was first formed earlier this year but remained shrouded in secrecy, the three sources said.

Read more of this story at Slashdot.

Researchers Claim Travis CI API Leaks ‘Tens of Thousands’ of User Tokens

Ars Technica describes Travis CI as “a service that helps open source developers write and test software.” They also wrote Monday that it’s “leaking thousands of authentication tokens and other security-sensitive secrets.

“Many of these leaks allow hackers to access the private accounts of developers on Github, Docker, AWS, and other code repositories, security experts said in a new report.”

The availability of the third-party developer credentials from Travis CI has been an ongoing problem since at least 2015. At that time, security vulnerability service HackerOne reported that a Github account it used had been compromised when the service exposed an access token for one of the HackerOne developers. A similar leak presented itself again in 2019 and again last year.

The tokens give anyone with access to them the ability to read or modify the code stored in repositories that distribute an untold number of ongoing software applications and code libraries. The ability to gain unauthorized access to such projects opens the possibility of supply chain attacks, in which threat actors tamper with malware before it’s distributed to users. The attackers can leverage their ability to tamper with the app to target huge numbers of projects that rely on the app in production servers.

Despite this being a known security concern, the leaks have continued, researchers in the Nautilus team at the Aqua Security firm are reporting. A series of two batches of data the researchers accessed using the Travis CI programming interface yielded 4.28 million and 770 million logs from 2013 through May 2022. After sampling a small percentage of the data, the researchers found what they believe are 73,000 tokens, secrets, and various credentials.

“These access keys and credentials are linked to popular cloud service providers, including GitHub, AWS, and Docker Hub,” Aqua Security said. “Attackers can use this sensitive data to initiate massive cyberattacks and to move laterally in the cloud. Anyone who has ever used Travis CI is potentially exposed, so we recommend rotating your keys immediately.”

Read more of this story at Slashdot.

Leaked Audio From 80 Internal TikTok Meetings Shows That US User Data Has Been Repeatedly Accessed From China

Speaking of TikTok moving US users’ data to Oracle, a new report says that ByteDance staff in China accessed US TikTok users’ data between September 2021 and January 2022. From the report: For years, TikTok has responded to data privacy concerns by promising that information gathered about users in the United States is stored in the United States, rather than China, where ByteDance, the video platform’s parent company, is located. But according to leaked audio from more than 80 internal TikTok meetings, China-based employees of ByteDance have repeatedly accessed nonpublic data about US TikTok users — exactly the type of behavior that inspired former president Donald Trump to threaten to ban the app in the United States.

The recordings, which were reviewed by BuzzFeed News, contain 14 statements from nine different TikTok employees indicating that engineers in China had access to US data between September 2021 and January 2022, at the very least. Despite a TikTok executive’s sworn testimony in an October 2021 Senate hearing that a “world-renowned, US-based security team” decides who gets access to this data, nine statements by eight different employees describe situations where US employees had to turn to their colleagues in China to determine how US user data was flowing. US staff did not have permission or knowledge of how to access the data on their own, according to the tapes.

“Everything is seen in China,” said a member of TikTok’s Trust and Safety department in a September 2021 meeting. In another September meeting, a director referred to one Beijing-based engineer as a “Master Admin” who “has access to everything.” (While many employees introduced themselves by name and title in the recordings, BuzzFeed News is not naming anyone to protect their privacy.) The recordings range from small-group meetings with company leaders and consultants to policy all-hands presentations and are corroborated by screenshots and other documents, providing a vast amount of evidence to corroborate prior reports of China-based employees accessing US user data.

Read more of this story at Slashdot.

TikTok Moves US User Data To Oracle Servers

German Regulators Open Investigation Into Apple’s App Tracking Transparency

From the MacRumors blog earlier this week:
Germany’s Federal Cartel Office, the Bundeskartellamt, has initiated proceedings against Apple to investigate whether its tracking rules and anti-tracking technology are anti-competitive and self-serving, according to a press release. The proceeding announced will review under competition law Apple’s tracking rules and specifically its App Tracking Transparency Framework (ATT) in order to ascertain whether they are self-preferencing Apple or being an impediment to third-party apps…

Introduced in April 2021 with the release of iOS 14.5 and iPadOS 14.5, Apple’s App Tracking Transparency Framework requires that all apps on âOEiPhoneâOE and âOEiPadâOE ask for the user’s consent before tracking their activity across other apps. Apps that wish to track a user based on their device’s unique advertising identifier can only do so if the user allows it when prompted.

Apple said the feature was designed to protect users and not to advantage the company… Earlier this year it commissioned a study into the impact of ATT that was conducted by Columbia Business School’s Marketing Division. The study concluded that Apple was unlikely to have seen a significant financial benefit since the privacy feature launched, and that claims to the contrary were speculative and lacked supporting evidence.
The technology/Apple blog Daring Fireball offers its own hot take:

In Germany, big publishing companies like Axel Springer are pushing back against Google’s stated plans to remove third-party cookie support from Chrome. The notion that if a company has built a business model on top of privacy-invasive surveillance advertising, they have a right to continue doing so, seems to have taken particular root in Germany. I’ll go back to my analogy: it’s like pawn shops suing to keep the police from cracking down on a wave of burglaries….

The Bundeskartellamt perspective here completely disregards the idea that surveillance advertising is inherently unethical and Apple has studiously avoided it for that reason, despite the fact that it has proven to be wildly profitable for large platforms. Apple could have made an enormous amount of money selling privacy-invasive ads on iOS, but opted not to.

Read more of this story at Slashdot.