This one centimeter-sized silicon chip can help to cool down quantum bits.
Quantum computing is a revolutionary technology, but the obstacles to creating viable quantum computers remain significant.
Chipping away at the task is a team of Finnish researchers, who have found a way to cool down quantum bits, or qubits, using a quantum-circuit refrigerator.
“To my understanding, no one else has done a standalone component that can refrigerate a quantum system,” Mikko Mttnen, quantum physicist and research team leader at Aalto University, tells ZDNet.
The significance of this development comes down to the fickle nature of qubits. Unlike in traditional computing, where electronic bits are set to a value of zero or one, qubits can simultaneously hold values of zero, one, or both. Consequently, they can carry out more computations in parallel and solve complex big-data problems much faster than today’s systems.
But qubits are very sensitive to external perturbations and need to be well isolated, and that isolation can in turn cause them to heat up and result in calculation errors.
Furthermore, every qubit needs to be reset to its low-temperature ground state at the beginning of a computation. If qubits get too hot, they keep switching between different states.
This is where the cooling mechanism of the Finnish research team comes in. Their system works by tunneling single electrons through a 2nm-thick insulator.
By giving the electrons slightly less energy than that required for tunneling, they instead capture the missing energy from the nearby quantum device, which in turn loses energy and cools down.
This approach means most electrical quantum devices, including computers, could be initialised quickly and made more reliable.
So far, the system has been tested by postdoctoral researcher Kuan Yan Tan with qubit-like superconducting resonators, with the results published in scientific journal Nature Communications.
“In the experiments we did with the resonator, the temperature of the resonator we achieved was too high for quantum computer operations. So we have to show we can cool down to even lower temperatures,” Mttnen explains.
In addition to this goal, the next steps for the team will be to test the system with actual quantum bits and make its on-off switch faster.
Mttnen estimates that viable practical applications could be possible in a few years’ time, but says it is too early to speculate when these applications could turn into commercial products.
Mttnen’s team is only one of the many companies and research organisations working on quantum computing, including tech giants Google, IBM and Microsoft. Despite all these efforts, Mttnen remains cautious when pressed about when the world will finally see the first commercial quantum computer.
“It’s almost impossible at this stage to say when. But what I can say is it’s more likely we will get there at some point than that we don’t,” Mttnen says.
US Energy Department lab bolsters quantum computing resources
Researchers at the Oak Ridge National Laboratory are getting cloud access to a D-Wave 2000Q system, allowing them to explore hybrid computing architectures.
Microsoft deepens University of Sydney quantum research partnership
Microsoft has beefed up its efforts to commercialise quantum computing, giving the university funding for new equipment, staff, and talent, as researchers delve deeper into the underlying technology.
Accenture, 1QBit partner for drug discovery through quantum computing
Accenture and quantum computing startup 1QBit have partnered with pharmaceutical giant Biogen to develop a quantum-enabled molecular comparison application for drug discovery.
IBM aims to commercialize quantum computing, launches API, SDK and sees Q systems in next few years
IBM put some more meat on its roadmap and plans to commercialize quantum computing for enterprises. For now, developers will get APIs and a software developer kit to play with qubits.
- Schrdinger's Killer App: Race to Build the World's First ... - August 7th, 2018
- How Quantum Computers Work - May 3rd, 2018
- This is what a 50-qubit quantum computer looks like - January 15th, 2018
- Inside Microsofts quantum computing world | InfoWorld - January 1st, 2018
- Microsoft Takes Path Less Traveled to Build a Quantum ... - December 13th, 2017
- Researchers create new type of quantum computer | Harvard Gazette - December 12th, 2017
- Microsoft releases quantum computing development kit preview ... - December 12th, 2017
- Intel moves towards production quantum computing with new 17 ... - October 11th, 2017
- Quantum computer a possibility in 10 years - News.com.au - NEWS.com.au - September 7th, 2017
- Scientists Propose a New Kind of Quantum Computer, But What ... - Gizmodo - September 7th, 2017
- Quantum detectives in the hunt for the world's first quantum computer - Phys.Org - September 7th, 2017
- Scientists Just Found A Use For The Hashtag In Quantum Computing - Gizmodo Australia - September 4th, 2017
- The Future of AI: From Quantum Computing to the Internet of Things - Outer Places - September 4th, 2017
- We're About to Cross The 'Quantum Supremacy' Limit in Computing - ScienceAlert - September 2nd, 2017
- Explaining the Most Recent Record for Quantum Computing: A 51-Qubit Quantum Computer Array - All About Circuits - September 2nd, 2017
- USRA Upgrades D-Wave Quantum Computer to 2000 Qubits - insideHPC - September 1st, 2017
- Quantum encrypted box hints at unhackable communication - Wired.co.uk - September 1st, 2017
- Quantum Computer Programming: What You Need to Learn to Get ... - TrendinTech - September 1st, 2017
- Google's John Martinis Believes Quantum Computing Threat to Be Long Way Off - Bitcoin News (press release) - August 31st, 2017
- Australian quantum computing outfit goes commercial - Networks Asia - August 31st, 2017
- Elusive Majorana Particle Takes Major Step Towards Quantum Computing - IEEE Spectrum - August 29th, 2017
- Australia gets quantum computing company - ACS (registration) - August 28th, 2017
- Quantum Computing and Financial Trading - LeapRate - August 28th, 2017
- Russians Lead the Quantum Computer Race With 51-Qubit Machine - Edgy Labs (blog) - August 28th, 2017
- Bitcoin vs. The NSAs Quantum Computer Bitcoin Not Bombs - August 26th, 2017
- qBitcoin: A Way of Making Bitcoin Quantum-Computer Proof? - IEEE Spectrum - August 26th, 2017
- Hype and cash are muddying public understanding of quantum ... - Phys.Org - August 26th, 2017
- Silicon Quantum Computing launched to commercialise UNSW ... - ZDNet - August 23rd, 2017
- IEEE Approves Standards Project for Quantum Computing ... - Business Wire (press release) - August 23rd, 2017
- Introducing Australia's first quantum computing hardware company - CIO Australia - August 23rd, 2017
- What is quantum computer? - Definition from WhatIs.com - August 22nd, 2017
- Hype and cash are muddying public understanding of quantum computing - The Conversation AU - August 22nd, 2017
- UNSW joins with government and business to keep quantum computing technology in Australia - The Australian Financial Review - August 22nd, 2017
- 'Tools of DESTRUCTION' Quantum computers WILL wreak havoc ... - Express.co.uk - August 19th, 2017
- Quantum computing comes of age - Alphr - August 14th, 2017
- No, Quantum Teleportation Won't Let Us Send Instant Messages to Alpha Centauri - Air & Space Magazine - August 12th, 2017
- Google on track for quantum computer breakthrough by end of ... - August 11th, 2017
- Closing In On Quantum Computing | WIRED - August 11th, 2017
- World's Leading Physicist Says Quantum Computers Are Tools of Destruction, Not Creation - Futurism - August 10th, 2017
- Will you be able to trust a quantum computer? - Digital Journal - August 9th, 2017
- New Methods of Controlling Electrons Could be Major in Quantum Computing - TrendinTech - August 5th, 2017
- Exactly what could quantum computers do? - Electronics Weekly - August 4th, 2017
- What is quantum computing and why does the future of Earth depend on it? - Alphr - August 2nd, 2017
- The Age of Quantum Computers is upon us! - Gizbot - August 2nd, 2017
- Ultracold molecules hold promise for quantum computing | MIT News - MIT News - August 1st, 2017
- Clarifiying complex chemical processes with quantum computers - Phys.Org - August 1st, 2017
- When Will Quantum Computers Be Consumer Products? - Futurism - August 1st, 2017
- Quantum Computers Just Moved a Step Closer to Reality - NBCNews.com - August 1st, 2017
- A New Breakthrough in Quantum Computing is Set to Transform Our ... - Futurism - August 1st, 2017
- Quantum computers compete for supremacy - Salon - July 10th, 2017
- Quantum Computers Compete for "Supremacy" - Scientific American - July 5th, 2017
- Less is more for Canadian quantum computing researchers - ITworld - July 4th, 2017
- New method could enable more stable and scalable quantum ... - Phys.Org - July 4th, 2017
- Volkswagen buys D-Wave quantum computers which sell for $15 million each - Robotics and Automation News (press release) (registration) - July 2nd, 2017
- 6 Things Quantum Computers Will Be Incredibly Useful For - Singularity Hub - July 1st, 2017
- Quantum Machine Learning Computer Hybrids at the Center of New Start-Ups - TrendinTech - June 20th, 2017
- Israel Enters Quantum Computer Race, Placing Encryption at Ever-Greater Risk - Sputnik International - June 20th, 2017
- Prototype device enables photon-photon interactions at room ... - Phys.Org - June 20th, 2017
- The Quantum Computer Factory That's Taking on Google and IBM - WIRED - June 20th, 2017
- Toward optical quantum computing - MIT News - June 17th, 2017
- Get ahead in quantum computing AND attract Goldman Sachs - eFinancialCareers - June 16th, 2017
- KPN CISO details Quantum computing attack dangers - Mobile World Live - June 16th, 2017
- Quantum Computing Technologies markets will reach $10.7 billion by 2024 - PR Newswire (press release) - June 14th, 2017
- From the Abacus to Supercomputers to Quantum Computers - Duke Today - June 13th, 2017
- Quantum Computers Will Analyze Every Financial Model at Once - Singularity Hub - June 13th, 2017
- Are Enterprises Ready to Take a Quantum Leap? - IT Business Edge - June 13th, 2017
- Scientists May Have Found a Way to Combat Quantum Computer Blockchain Hacking - Futurism - June 13th, 2017
- Microsoft and Purdue work on scalable topological quantum computer - Next Big Future - June 13th, 2017
- Doped Diamonds Push Practical Quantum Computing Closer to Reality - Motherboard - June 3rd, 2017
- Team develops first blockchain that can't be hacked by quantum computer - Siliconrepublic.com - June 3rd, 2017
- D-Wave partners with U of T to move quantum computing along - Financial Post - June 2nd, 2017
- Telstra just wants a quantum computer to offer as-a-service - ZDNet - June 1st, 2017
- Microsoft, Purdue Tackle Topological Quantum Computer - HPCwire - HPCwire (blog) - June 1st, 2017
- MIT Just Unveiled A Technique to Mass Produce Quantum Computers - Futurism - June 1st, 2017
- Here's How We Can Achieve Mass-Produced Quantum Computers - ScienceAlert - June 1st, 2017
- Research collaborative pursues advanced quantum computing - Phys.Org - June 1st, 2017
- AI and Quantum Computers Are Our Best Weapons Against Cyber Criminals - Futurism - June 1st, 2017
- Scientists claim to have invented the world's first quantum-proof ... - ScienceAlert - June 1st, 2017
- Google Plans to Demonstrate the Supremacy of Quantum ... - IEEE Spectrum - May 25th, 2017
- Top 5: Things to know about quantum computers - TechRepublic - May 25th, 2017