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New technique for building quantum chips

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There are many things that are still unknown about quantum physics. How it works is broadly known, but many explanations are unknown to justify what is received in the observations. They are new laws of physics, very different from those around us in the “normal world,” that can help create new devices and advance the world of science and technology.

Now a team of researchers has developed a new silicon construction technique to make it cheaper to create chips for quantum computers.

The new technique looks like something out of a science fiction book: individual atoms are put, one by one, on wafers of silicon.

Published in the journal Advanced Materials, this technique takes advantage of the precision of the atomic microscope to brush the surface of a chip with the precision of half a nanometer, the space between atoms in a silicon crystal.

The process began almost by chance, seeing a signal that occurred every time an atom fell to the surface. They amplified that signal and managed to control the process with equipment including sensitive X-ray detectors and an atomic force microscope that was originally developed for the Rosetta space mission.

They now believe that they can create a qubit “chip” more cheaply, since until now they were made by implanting many atoms in random locations and selecting the ones that worked best. From now on they can be put into an ordered matrix, as is done with transistors in long-life chips.

The goal is to make large-scale machines based on single-atom quantum bits, although it will still take a few months before this mass manufacturing process can begin.

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Apple Declares 2013 and 2014 iMacs Obsolete and Watch Series 2 Smartwatches ‘Vintage’

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Apple Declares 2013 and 2014 iMacs Obsolete and Watch Series

Apple has added three models of iMacs to its list of obsolete products: a 21.5-inch screen from 2013, a 21.5-inch screen from 2014, and a 27-inch Retina 5K screen also from 2014.

Apple Declares 2013 and 2014 iMacs Obsolete and Watch Series 2 Smartwatches 'Vintage'

Apple typically deprecates products seven years after they were released, so it’s no surprise that the 2013 and 2014 iMacs are on the list.

As for smart watches Apple Watch Series 2, they are recognized as “vintage”. This category usually includes devices that have been released for five years. There may be problems with the official repair of the aforementioned iMacs.

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There are almost 1 billion 5G users. Ericsson report shows that operators often ask for more money for such tariffs.

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There are almost 1 billion 5G users Ericsson report shows

According to a report by Ericsson cited by The Verge, by the end of this year, the number of 5G subscribers in the world will reach 1 billion.

Of course, this is far from the performance of 4G networks, which are now used by about 5 billion people, but still this is a fairly significant part of the market.

There are almost 1 billion 5G users. Ericsson report shows that operators often ask for more money for such tariffs.

Of course, 5G adoption is far from uneven. In North America, about 35% of subscribers will use 5G networks by the end of this year.

At the same time, the report indicates that operators often ask for more money for the higher speeds offered by new networks. Dividing into corresponding tariffs is popular among operators in Western Europe, but overall, 25% of operators worldwide charge extra for 5G. And the average markup is 40%.

Ericsson believes that, unfortunately, this trend will continue for several more years, as operators need to compensate for the costs of developing a new network.

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Is Apple Helping the Chinese Government Fight Protests? The company cut the AirDrop function in the Middle Kingdom

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Is Apple Helping the Chinese Government Fight Protests The company

The history of protests in China is overgrown with new interesting details related to IT companies.

Is Apple Helping the Chinese Government Fight Protests?  The company cut the AirDrop function in the Middle Kingdom

Just weeks before the protests began, Apple reportedly made a major change to how AirDrop works, and only in China. After updating to iOS 16.1.1, AirDrop in the mode of receiving messages from everyone became possible only for 10 minutes, after which AirDrop simply turns off. In normal mode, AirDrop has no time limit, as there is none now and all over the world outside of China.

The fact is that AirDrop is one of the ways protesters communicate, and not only in China. AirDrop works locally in smartphone-to-smartphone mode, without relying on external networks, so it cannot simply be blocked or read data. But in this case, for some reason, Apple decided to seriously change the function, although it did not turn it off completely.

The CNBC resource also notes that the corresponding update was released a month after Chinese President Xi Jinping was re-elected for a third term.

Recall that Huawei smartphones have been noticed that they automatically delete videos that depict events related to protests in China.

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