Important milestone in the creation of a quantum computer — ScienceDaily

News Highlights: Important milestone in the creation of a quantum computer — ScienceDaily.

Quantum Computer: One of the obstacles to progress in the quest for a working quantum computer is that the working devices that go into a quantum computer and do the actual calculations, the qubits, were made by universities and in small numbers until now. But in recent years, a pan-European collaboration, in collaboration with French microelectronics leader CEA-Leti, has explored everyday transistors – which are present in the billions in all of our cell phones – for their use as qubits. The French company Leti makes giant wafers full of devices, and after measurements, researchers from the Niels Bohr Institute, University of Copenhagen, have found that these industrially produced devices are suitable as a qubit platform capable of going to the second dimension , an important step for a working quantum computer. The result has now been published in Nature Communications.

Quantum dots in a two-dimensional array is a leap forward

One of the most important features of the devices is the two-dimensional array of quantum dots. Or rather, a two by two grid of quantum dots. “What we have shown is that we can realize a single electron arrangement in each of these quantum dots. This is very important for the development of a qubit, because one of the possible ways to make qubits is by using the spin of a single electron. So achieving this goal of driving the single electrons and doing it in a 2D array of quantum dots was very important to us, ”said Fabio Ansaloni, former PhD candidate, now a postdoctoral fellow at the Center for Quantum Devices, NBI.

The use of electron spins has proven beneficial for the implementation of qubits. In fact, their “quiet” nature causes spins to react weakly to the noisy environment, an important requirement for obtaining high-performing qubits.

Extending quantum computer processors to the second dimension has been proven to be essential for more efficient implementation of quantum error correction routines. Quantum error correction will enable future quantum computers to be error tolerant against individual qubit errors during calculations.

The importance of industrial scale production

Anasua Chatterjee, assistant professor at Center for Quantum Devices, NBI, adds, “The original idea was to create a series of spin qubits, get to single electrons, and be able to control and move them. In that sense, it is really great that Leti was able to provide the samples we used, which allowed us to achieve this result. Much credit goes to the pan-European project consortium and generous funding from the EU, which is helping us slowly transition from the level of a single quantum dot with a single electron to two electrons, and now move into two-dimensional arrays. Two-dimensional arrays is a really big goal, because that’s starting to look like something you absolutely need to build a quantum computer. So Leti has been involved in a series of projects over the years, all of which contributed to this result. “

The honor of getting this far goes to many projects across Europe

Development has been gradual. In 2015, researchers in Grenoble managed to create the first spin qubit, but it was based on holes, not electrons. At the time, the performance of the devices created in the “hole regime” was not optimal, and technology has advanced so far that the devices now with NBI can have two-dimensional arrays in the single electron regime. The progress has been threefold, the researchers explain: “First, producing the devices in an industrial foundry is a necessity. The scalability of a modern, industrial process is essential if we are going to make larger arrays, for example for small quantum simulators. Second, when making a quantum computer, you need an array in two dimensions, and you need a way to connect the external world to each qubit. Having 4-5 connections for each qubit will quickly end up with an unrealistic number of wires going out of the low-temperature setup. But what we have been able to show is that we can have one gate per electron, and you can read and control with the same gate. And finally, using these tools, we were able to move and exchange individual electrons across the array in a controlled manner, a challenge in itself. “

Two-dimensional arrays can control errors

Controlling errors in the devices is a chapter in itself. The computers we use today produce a lot of errors, but they are corrected by means of the so-called repeat code. On a conventional computer, you can have information in a 0 or a 1. To make sure that the result of a calculation is correct, the computer repeats the calculation and if a transistor makes a mistake, it corrects it by simple majority. . If most of the calculations performed in other transistors point to 1 and not 0, then 1 is chosen as the result. This is not possible in a quantum computer because you cannot make an exact copy of a qubit, so quantum error correction works in a different way: State-of-the-art physical qubits don’t have a low error rate yet, but if enough of them are combined in the 2D array, they can keep each other in check, as it were. This is another advantage of the now realized 2D array.

The next step of this milestone

The result of the Niels Bohr Institute shows that it is now possible to monitor single electrons and perform the experiment without a magnetic field. So the next step will be to look for spins – spin signatures – in the presence of a magnetic field. This is essential to implement single and two qubit gates between the single qubits in the array. Theory has shown that a handful of single and two qubit gates, called a complete set of quantum gates, are enough to allow universal quantum computation.

Via: www.sciencedaily.com

  • Check the latest PC news updates and information.
  • Please share this news Important milestone in the creation of a quantum computer — ScienceDaily with your friends and family to support us your one share helps us a lot.
  • Follow us on Facebook and Twitter if you need more updates like this.
Disclaimer: If you need to edit or update this news from compsmag then kindly contact us Learn more

For Latest News Follow us on Google News


Latest Headlines
  • Show all
  • Trending News
  • Popular By week
The Top Pricing Optimization Software Vendors According to the FeaturedCustomers Winter 2021 Customer Success Report Rankings

Analyzing My Own LinkedIn Data

News Highlights ...
Cybercrime: targeting child predators |  ArkLaTex in depth

Cybercrime: targeting child predators | ArkLaTex in depth

News Highlights: Cybercrime: targeting child predators | ArkLaTex in depth ...
"Russian" hackers targeted NASA networks as part of the SolarWinds attack

“Russian” hackers targeted NASA networks as part of the SolarWinds attack

News Highlights: "Russian" hackers targeted NASA networks as part of the SolarWinds attack ...
The Top Pricing Optimization Software Vendors According to the FeaturedCustomers Winter 2021 Customer Success Report Rankings

School Calendar

News Highlights ...
Review: X-Chair X3-HMT ATR management chair

Review: X-Chair X3-HMT ATR management chair

News Highlights ...
Woman hacked to death with machete in Queens house: NYPD

Woman hacked to death with machete in Queens house: NYPD

News Highlights: Woman hacked to death with machete in Queens house: NYPD ...
Hackers tied to the Russian GRU targeted the US net for years, researchers warn

Hackers tied to the Russian GRU targeted the US net for years, researchers warn

News Highlights: Hackers tied to the Russian GRU targeted the US net for years, researchers warn ...
Cyber ​​security update 24-02-2021: University of Amsterdam

Cyber ​​security update 24-02-2021: University of Amsterdam

News Highlights: Cyber ​​security update 24-02-2021: University of Amsterdam ...
Police officers and lawyers receive training to handle cybercrime cases |  Jaipur News

Able to establish far-level cyber crime units | Chandigarh News

News Highlights: Able to establish far-level cyber crime units | Chandigarh News ...
Show next
RSS Best 10 Guide by Compsmag
  • Best Pizza Maker In India February 23, 2021
    Are you looking for the Best Pizza Maker in India? To cook frozen or fresh pizzas, you absolutely must have a pizza-making of high quality, ergonomic and durable. Lately, pizza making has become even easier because of the large number of pizza makers on the market. Despite the growing number of these articles, you must […]
    Mohit
  • 5 Important Things You Should Know About Facebook #Hashtags February 23, 2021
    Things You Should Know About Facebook #Hashtags – We all know Fb has hashtags but should they be part of your Facebook marketing strategy. Its first use in 2007, #hashtags have become one of the most useful tools in social media. Many companies and marketers have invested in hashtags to take in the new customer as […]
    Compsmag Team
  • Best Premium WordPress Themes Responsive February 23, 2021
    Are you looking for the best Premium WordPress themes responsive of 2021? Here is a big collection of best, Responsive, Premium WordPress themes for WordPress users to boost up your project or personal blog. Today, WordPress is the most powerful and uses a CMS(Content Management System) in the online world. Apart from this, WordPress also […]
    Sumit Chauhan
  • Best Action Cameras February 22, 2021
    Choosing the Best Action Cameras can be tricky. Hundreds of action cams are available, ranging from crammed 4K action cameras to cheap budget options. So what is The Best action camera for you – and what features do you need?  The longer answer, however, is that the right option depends on what you want to use […]
    Mayank Bhardwaj
  • Best Cameras For Portraits February 22, 2021
    The Best Cameras For Portraits can be DSLR, a mirrorless camera, or even a camera phone. DSLRs and mirrorless cameras have interchangeable lenses and large sensors for top quality and background blur, but camera phones now offer exciting digital ‘depth modes’ that can work well to simulate the background blur of a larger camera. Does […]
    Mayank Bhardwaj
  • Best Wireless Charger of 2021 February 22, 2021
    Are you looking for the Best Wireless Charger of 2021? The wires are such a mess! Everyone thinks the same thing. However, sons are an integral part of our lives. We have to charge our phones with wired chargers. The advent of wireless chargers was like a dream come true. Is not it great? Finally, […]
    Mohit
  • Best Custom ROM For Rooted Android February 21, 2021
    Best Custom ROM For Rooted Android: Today Android rooting is a very typical process for the users that are using this smartphone. Many of you’ve rooted your Android device and try many cools apps in your rooted Android. But you can do much more with them that’s installing custom ROM’s. As we know custom ROM […]
    Compsmag Team
  • The Best iPad Games of 2021 February 20, 2021
    Best iPad Games of 2021 – Are you looking for the Best games for iPad? You have come to The Best place. The App Store has so many excellent games to play but is often overwhelming with the amount of choice, making it tricky to separate the high from the garbage. Luckily, Compsmag loves playing games, so we’ve rounded […]
    Mohit
  • The Best FireStick Settings You Should Know and Change Right Now January 29, 2021
    The Best FireStick Settings You Should Know and Change Right Now Tutorial and Steps So here we discuss the The Best FireStick Settings You Should Know and Change Right Now, and after a lot of requests from our users here is a guide about The Best FireStick Settings You Should Know and Change Right Now. […]
    Geek Techy
  • 21 Boredom-Busting Websites That Will Entertain You Forever January 29, 2021
    Boredom-Busting Websites – Bored with the identical outdated websites? Searching for some new corners of the Internet to get you fired up with enthusiasm? Well, you are in luck. Right here at Ink Tank, we get a kick out of unearthing & then sharing the most effective of the web, from websites that make you […]
    Sumit Chauhan
RSS Popular Blog and Tutorial Tips
  • What is the difference between Google Book­marks and Chrome Book­marks February 23, 2021
    This article is about What is the difference between Google Book­marks and Chrome Book­marks. So read this free guide, What is the difference between Google Book­marks and Chrome Book­marks step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: What is the difference between […]
    Jim Lopez
  • Best Chrome Exten­sions for Screen Recording February 23, 2021
    This article is about Best Chrome Exten­sions for Screen Recording. So read this free guide, Best Chrome Exten­sions for Screen Recording step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: Best Chrome Exten­sions for Screen Recording Google Chrome extensions add a lot of […]
    Jim Lopez
  • Fix ‘Chrome is Ask­ing for Sync Passphrase’ Issue February 23, 2021
    This article is about Fix ‘Chrome is Ask­ing for Sync Passphrase’ Issue. So read this free guide, Fix ‘Chrome is Ask­ing for Sync Passphrase’ Issue step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: Fix ‘Chrome is Ask­ing for Sync Passphrase’ Issue Chrome […]
    Jim Lopez
  • How to Import Chrome Browser Book­marks to Sam­sung Browser February 23, 2021
    This article is about How to Import Chrome Browser Book­marks to Sam­sung Browser. So read this free guide, How to Import Chrome Browser Book­marks to Sam­sung Browser step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: How to Import Chrome Browser Book­marks to […]
    Jim Lopez
  • How to Turn On/Off News in Opera Browser February 23, 2021
    This article is about How to Turn On/Off News in Opera Browser. So read this free guide, How to Turn On/Off News in Opera Browser step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: How to Turn On/Off News in Opera Browser If you’ve just installed […]
    Jim Lopez
  • Down­loading GIF from Pinterest: Guide February 23, 2021
    This article is about Down­loading GIF from Pinterest: Guide. So read this free guide, Down­loading GIF from Pinterest: Guide step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: Down­loading GIF from Pinterest: Guide Emojis used to rule the world, now GIFs and memes […]
    Jim Lopez
  • Fix ‘Google Chrome Exten­sions Not Sync­ing’ Issue February 23, 2021
    This article is about Fix ‘Google Chrome Exten­sions Not Sync­ing’ Issue. So read this free guide, Fix ‘Google Chrome Exten­sions Not Sync­ing’ Issue step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: Fix ‘Google Chrome Exten­sions Not Sync­ing’ Issue Extensions for Google Chrome […]
    Jim Lopez
  • How to Stream Apple Music Online With­out iTunes February 23, 2021
    This article is about How to Stream Apple Music Online With­out iTunes. So read this free guide, How to Stream Apple Music Online With­out iTunes step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: How to Stream Apple Music Online With­out iTunes iTunes […]
    Jim Lopez
  • Fix ‘Fire TV Not Show­ing in Alexa App’ Issue February 23, 2021
    This article is about Fix ‘Fire TV Not Show­ing in Alexa App’ Issue. So read this free guide, Fix ‘Fire TV Not Show­ing in Alexa App’ Issue step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: Fix ‘Fire TV Not Show­ing in Alexa App’ Issue All […]
    Jim Lopez
  • Fix ‘Fire TV Stick Remote Won’t Pair After Fac­to­ry Reset’ Issue February 23, 2021
    This article is about Fix ‘Fire TV Stick Remote Won’t Pair After Fac­to­ry Reset’ Issue. So read this free guide, Fix ‘Fire TV Stick Remote Won’t Pair After Fac­to­ry Reset’ Issue step by step. If you have query related to same article you may contact us. So Lets begin this guide: Guide: Fix ‘Fire TV Stick Remote […]
    Jim Lopez
News - Tech News, Latest News, Business News and world News
Logo