An interesting article from Scientific American. Accorfing to the article
A team of researchers in China has unveiled a technique that—theoretically—could crack the most common methods used to ensure digital privacy, using a rudimentary quantum computer.
The technique worked in a small-scale demonstration, the researchers report, but other specialists are sceptical that the procedure could be scaled up to beat ordinary computers at the task. Still, they warn that the paper, posted late last month on the arXiv repository, is a reminder of the vulnerability of online privacy.
Chinese scientists say they could be a step closer to developing a code-breaking machine, thanks to a recent breakthrough in quantum memory technology.
A quantum computer can crack an encrypted message in hours, but it needs tens of millions of qubits — the quantum information carried by subatomic particles — to make the calculation. ….. However, a team from the University of Science and Technology of China has unveiled a design for a new quantum computer that could break a code using considerably less qubits than it was previously thought were needed.
Researchers at the University of Innsbruck have built the smallest quantum computer yet, prompting questions if European outfits can take on the leading pack.
A notable feature of the compact quantum computer is its low power consumption, which stands at 1.5 kilowatts – the same amount of energy needed to power a kettle. “Indeed, such is its low power consumption, that the researchers in the University of Innsbruck are exploring how to power the device using solar panels.”
Another decisive factor for the industrial use of quantum computers is the number of available qubits. The Innsbruck physicists were able to run the quantum computer with 24 fully functional qubits – individually controlling and entangling 24 trapped ions with their device – meeting a recent target set by the German government with surprising speed.
IBM has unveiled Japan’s first quantum computer for commercial applications, its Japanese arm said Tuesday, as Washington and Tokyo join hands to push the field toward practical use with an eye on recent strides by China.
The IBM Quantum System One is up and running at the Kawasaki Business Incubation Center near Tokyo. The University of Tokyo will administer access to the machine, which will be used by the Quantum Innovation Initiative Consortium, whose members include Keio University and Toyota Motor. The project marks a step forward for Japan-U.S. cooperation in a fiercely competitive field that has become embroiled in the battle with China for technological superiority. Quantum computing was among the areas of cooperation discussed by Japanese Prime Minister Yoshihide Suga and U.S. President Joe Biden at their April summit.
Nikkei Asia “US and Japan counter China with powerful IBM quantum computer”
Quantum computers can process complex information at a mind-boggling speed and should eventually vastly outperform even the most powerful of today’s conventional computers. This includes the rapid training of machine learning models and the creation of optimized algorithms. Years of analysis can be cut to a short time with an optimized and stable AI that is powered by quantum computing. The combined solution is expected to bring changes to the AI hardware ecosystem
Techhq.com “Why AI will be so core to real-world quantum computing”
In a report by McKinsey, quantum computers have four fundamental capabilities that differentiate them from today’s classical computers: quantum simulation, in which quantum computers model complex molecules; optimization (that is, solving multivariable problems with unprecedented speed); quantum artificial intelligence (AI), utilizes better algorithms that could transform machine learning across industries as diverse as pharma and automotive; and prime factorization, which could revolutionize encryption.
Techhq.com “Why AI will be so core to real-world quantum computing”
Researchers in China unveiling a super-advanced 66-qubit quantum supercomputer called Zuchongzhi, which by one important metric is the most powerful machine of its kind we’ve seen to date. The performance of Zuchongzhi is undoubtedly impressive: it finished a designated quantum benchmark task in around 70 minutes, and its creators claim the world’s most powerful ‘classical’ (non-quantum) supercomputer to date would need around eight years to get through the same set of calculations.
Science Alert (Record-Breaking Chinese Supercomputer Marks New Quantum Supremacy Milestone)
By cooling atoms down to near absolute zero and then controlling them with lasers, a company has successfully created a 100-qubit quantum processor that compares to the systems developed by leading quantum players to date. ColdQuanta, a US-based company that specializes in the manipulation of cold atoms, unveiled the new quantum processor unit, which will form the basis of the company’s 100-qubit gate-based quantum computer, code-named Hilbert, launching later this year after final tuning and optimization work. here are various different approaches to quantum computing, and among those that have risen to prominence in the last few years feature superconducting systems, trapped ions, photonic quantum computers and even silicon spin qubits.
ZDNet “Quantum computing: This new 100-qubit processor is built with atoms cooled down near to absolute zero”
Quantum computing is coming on leaps and bounds. Now there’s an operating system available on a chip thanks to a Cambridge University-led consortia with a vision is make quantum computers as transparent and well known as RaspberryPi. This “sensational breakthrough” is likened by the Cambridge Independent Press to the moment during the 1960s when computers shrunk from being room-sized to being sat on top of a desk. Around 50 quantum computers have been built to date, and they all use different software – there is no quantum equivalent of Windows, IOS or Linux. The new project will deliver an OS that allows the same quantum software to run on different types of quantum computing hardware.
Redshark “Quantum Computing just got desktop sized”
IBM researchers have finally proven in a real-world experiment that quantum computers are superior to classical devices – although for now, only at a miniature scale.
Big Blue’s quantum team set out to discover if today’s quantum devices, despite their limitations, could be used to complete a task that cannot be done on a classical system.
Since quantum computing is still in its infancy, the researchers leveled the playing field between the two methods by designing a microscopic experiment with limited space – that is, limited amount of available memory.
As part of an EU-funded project called AQTION, a group of scientists from the University of Innsbruck in Austria successfully set up a fully functional ion trap quantum computer into two 19-inch server racks, as typically found in data centers around the world. The device only requires a single wall-mounted power plug and is otherwise self-contained.
The prototype is an exciting development in an industry that relies mostly on lab-based implementations, where quantum computers can only be controlled thanks to purpose-built infrastructure. Developing a set-up that is more accessible is, therefore, key to expanding the reach of the technology.