
via Knowridge Science Report
University of Adelaide-led research has moved the world one step closer to reliable, high-performance quantum computing.
An international team has developed a ground-breaking single-electron “pump”. The electron pump device developed by the researchers can produce one billion electrons per second and uses quantum mechanics to control them one-by-one. And it’s so precise they have been able to use this device to measure the limitations of current electronics equipment.
This paves the way for future quantum information processing applications, including in defence, cybersecurity and encryption, and big data analysis.
“This research puts us one step closer to the holy grail – reliable, high-performance quantum computing,” says project leader Dr Giuseppe C. Tettamanzi, Senior Research Fellow, at the University of Adelaide’s Institute for Photonics and Advanced Sensing.
Published in the journal Nano Letters, the researchers also report observations of electron behaviour that’s never been seen before – a key finding for those around the world working on quantum computing.
“Quantum computing, or more broadly quantum information processing, will allow us to solve problems that just won’t be possible under classical computing systems,” says Dr Tettamanzi.
“It operates at a scale that’s close to an atom and, at this scale, normal physics goes out the window and quantum mechanics comes into play.
“To indicate its potential computational power, conventional computing works on instructions and data written in a series of 1s and 0s – think about it as a series of on and off switches; in quantum computing every possible value between 0 and 1 is available. We can then increase exponentially the number of calculations that can be done simultaneously.”
This University of Adelaide team, in collaboration with the University of Cambridge, Aalto University in Finland, University of New South Wales, and the University of Latvia, is working in an emerging field called electron quantum optics. This involves controlled preparation, manipulation and measurement of single electrons. Although a considerable amount of work has been devoted world-wide to understand electronic quantum transport, there is much still to be understood and achieved.
“Achieving full control of electrons in these nano-systems will be highly beneficial for realistic implementation of a scalable quantum computer. We, of course, have been controlling electrons for the past 150 years, ever since electricity was discovered. But, at this small scale, the old physics rules can be thrown out,” says Dr Tettamanzi.
“Our final goal is to provide a flow of electrons that’s reliable, continuous and consistent – and in this research, we’ve managed to move a big step towards realistic quantum computing.
“And, maybe equally exciting, along the way we have discovered new quantum effects never observed before, where, at specific frequencies, there is competition between different states for the capture of the same electrons. This observation will help advances in this game-changing field.”
The Latest on: Quantum computing
[google_news title=”” keyword=”quantum computing” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Quantum computing
- Quantum measurements more precise than ever before: New study aims to advance quantum computingon January 13, 2023 at 12:58 am
An international team of researchers, including scientists from Jena, has succeeded in developing a new and particularly precise type of measurement in tiny quantum systems. Applications are ...
- How quantum computing can fight climate changeon January 13, 2023 at 12:14 am
Quantum computers could help unpick the challenges of climate change and offer solutions with real impact – but we can’t wait for their arrival ...
- Researchers claim method to break encryption using existing quantum computeron January 12, 2023 at 11:30 pm
A group of Chinese researchers has claimed to be able to break a widely used encryption scheme with a quantum computer that already exists, creating a possible boon for surveillance and a crisis for ...
- Quantum Computer With Billions of Qubits Closer After New Spin Control Method Discoveredon January 12, 2023 at 3:15 pm
Discovery of previously unknown effect makes compact, ultra-fast control of spin qubits for quantum computers possible. Multiple qubits being controlled by the new technique Multiple qubits being ...
- Quantum Computing, Software Quality, and Security Will Intensify in 2023on January 12, 2023 at 1:37 pm
This article is part of the 2023 Electronic Design Technology Forecast issue. What you'll learn: How quantum technology will impact everything from fuel efficiency to meteorologic ...
- Quantum computers threaten our whole cybersecurity infrastructure: Here's how scientists can bulletproof iton January 12, 2023 at 10:01 am
Thirteen, 53 and 433. That's the size of quantum computers in terms of quantum bits, or qubits, which has significantly grown in the last years due to important public and private investments and ...
- Quantum computing is harder than herding kittenson January 12, 2023 at 6:22 am
Is quantum computing going to rewrite the rules of computation, cryptography, logistics and materials science, as enthusiastic supporters claim? Or are we heading into a “quantum winter”, where the ...
- Zapata Computing’s Second Annual Global Survey Shows Strong Progress For Quantum Computing In The Enterprise Marketon January 11, 2023 at 1:14 pm
Goodson, dives in as last year, Zapata Computing, a quantum software company, commissioned one of the year's most insightful and valuable quantum computing surveys.
- Sorry, quantum computing isn’t as mind-blowing as you thinkon January 11, 2023 at 7:22 am
Today, machines are now being developed to harness the strange world of quantum mechanics. Where traditional computers use bits – that are either a 0 or a 1 – quantum computers use qubits (quantum ...
via Bing News