Latest news with #errorcorrection
Yahoo
5 days ago
- Business
- Yahoo
Why Rigetti Computing Stock Soared 9.3% This Week
Key Points A potential breakthrough from researchers at USC sent Rigetti stock higher. A new particle could help quantum companies solve quantum's error issue. The technology could still be many years away. 10 stocks we like better than Rigetti Computing › Shares of Rigetti Computing (NASDAQ: RGTI) jumped this week. The quantum computing start-up's stock rose 9.3% from last Friday's close. The move came as the S&P 500 and the Nasdaq-100 rose 2.4% and 3.7%, respectively. Rigetti and other quantum stocks were lifted this week by news that researchers at the University of Southern California may have found a way around obstacles the technology faces in its development. A "rescued" particle could boost quantum Researchers at the University of Southern California said that they had identified a new type of particle they call "neglectons," which could help solve one of quantum computing's biggest issues. The particles earned their name from their once-overlooked status; researchers had previously dismissed them as "mathematical garbage." Quantum computing faces a number of hurdles in its ongoing development. Chief among them is the inherent difficulty in error correction. These systems are fragile and hard to keep from degrading. The new particles could help scientists solve this issue through an approach called "braiding." Investors should remain cautious While the news is positive, it by no means indicates the issue is solved -- or is close to being solved. This is a highly experimental field at the very edge of human knowledge and theory, let alone practical engineering. I think many investors are getting ahead of themselves, and it could be many years, if not decades, before we see viable quantum computing at scale. Rigetti is one of the more promising quantum companies, but at its current valuation, I would not invest. Do the experts think Rigetti Computing is a buy right now? The Motley Fool's expert analyst team, drawing on years of investing experience and deep analysis of thousands of stocks, leverages our proprietary Moneyball AI investing database to uncover top opportunities. They've just revealed their to buy now — did Rigetti Computing make the list? When our Stock Advisor analyst team has a stock recommendation, it can pay to listen. After all, Stock Advisor's total average return is up 1,047% vs. just 181% for the S&P — that is beating the market by 865.68%!* Imagine if you were a Stock Advisor member when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you'd have $636,563!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you'd have $1,108,033!* The 10 stocks that made the cut could produce monster returns in the coming years. Don't miss out on the latest top 10 list, available when you join Stock Advisor. See the 10 stocks » *Stock Advisor returns as of August 4, 2025 Johnny Rice has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. Why Rigetti Computing Stock Soared 9.3% This Week was originally published by The Motley Fool
Yahoo
5 days ago
- Business
- Yahoo
Why Rigetti Computing Stock Soared 9.3% This Week
Key Points A potential breakthrough from researchers at USC sent Rigetti stock higher. A new particle could help quantum companies solve quantum's error issue. The technology could still be many years away. 10 stocks we like better than Rigetti Computing › Shares of Rigetti Computing (NASDAQ: RGTI) jumped this week. The quantum computing start-up's stock rose 9.3% from last Friday's close. The move came as the S&P 500 and the Nasdaq-100 rose 2.4% and 3.7%, respectively. Rigetti and other quantum stocks were lifted this week by news that researchers at the University of Southern California may have found a way around obstacles the technology faces in its development. A "rescued" particle could boost quantum Researchers at the University of Southern California said that they had identified a new type of particle they call "neglectons," which could help solve one of quantum computing's biggest issues. The particles earned their name from their once-overlooked status; researchers had previously dismissed them as "mathematical garbage." Quantum computing faces a number of hurdles in its ongoing development. Chief among them is the inherent difficulty in error correction. These systems are fragile and hard to keep from degrading. The new particles could help scientists solve this issue through an approach called "braiding." Investors should remain cautious While the news is positive, it by no means indicates the issue is solved -- or is close to being solved. This is a highly experimental field at the very edge of human knowledge and theory, let alone practical engineering. I think many investors are getting ahead of themselves, and it could be many years, if not decades, before we see viable quantum computing at scale. Rigetti is one of the more promising quantum companies, but at its current valuation, I would not invest. Do the experts think Rigetti Computing is a buy right now? The Motley Fool's expert analyst team, drawing on years of investing experience and deep analysis of thousands of stocks, leverages our proprietary Moneyball AI investing database to uncover top opportunities. They've just revealed their to buy now — did Rigetti Computing make the list? When our Stock Advisor analyst team has a stock recommendation, it can pay to listen. After all, Stock Advisor's total average return is up 1,047% vs. just 181% for the S&P — that is beating the market by 865.68%!* Imagine if you were a Stock Advisor member when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you'd have $636,563!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you'd have $1,108,033!* The 10 stocks that made the cut could produce monster returns in the coming years. Don't miss out on the latest top 10 list, available when you join Stock Advisor. See the 10 stocks » *Stock Advisor returns as of August 4, 2025 Johnny Rice has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. Why Rigetti Computing Stock Soared 9.3% This Week was originally published by The Motley Fool
Times
23-07-2025
- Business
- Times
UK firms in quantum leap for commercial use of supercomputers
Two British tech companies have made error-corrected quantum computing available in a commercial data centre for the first time. The collaboration between Oxford Quantum Circuits (OQC) and Riverlane means that early quantum adopters such as investment banks and security and defence companies can test their quantum algorithms securely on their own data and potentially gain an advantage over competitors. Gerald Mullally is chief executive of the Reading-based OQC, which has built a type of quantum computer using 'superconducting circuits'. He said the integration with Riverlane, a Cambridge firm that is a world leader in the correction of processing errors, would accelerate the time it takes for quantum computers to become commercially useful. • What is quantum computing? Our science editor tries to explain At present, the computers can run thousands of operations before errors overwhelm them. OQC plans to reach millions of operations by 2028, followed by billions in 2031, which would enable quantum chemistry, followed by trillions of operations in 2034, where current methods of encryption can be broken. 'One of the key things we need to do collectively is get those errors down, and [putting together] what Riverlane has created with our architecture … accelerates that path towards 2028 and when [the technology] unlocks commercial value,' Mullally said. Customers of the 29,000 sq m data centre in Reading run by CenterSquare, a Texas-based operator, can pay to use the three OQC quantum computers based there to test their quantum algorithms on their own data, in a secure way. The likely users are understood to include global banks, social media firms and security groups. 'The reason businesses are using the technology is that they are understanding where it is, they are refining their quantum algorithms and, on that basis, they will be first to [gain a] commercial advantage when the hardware has a low enough error rate,' said Mullally. Their experience with AI, he said, had forced businesses 'to think about future compute much more seriously'. International companies such as investment banks already employ large teams of quantum computer software specialists, who are writing and testing trading algorithms on these early systems. 'They know what it means for derivative pricing, arbitrage, deep hedging or fraud detection. They are largely proprietary algorithms that give them commercial advantage,' Mullally said. OQC, which was founded by Oxford University physicists in 2017, co-located its quantum computers at the data centre over two years ago, but this will be the first time it has integrated them with error-correction systems to improve their performance. It said that, initially, Riverlane's technology would run on a digital twin of its quantum system to validate its error-correction routines, before integrating it into OQC's hardware. Steve Brierley, founder and chief executive of Riverlane, said: 'Quantum computing gives you an exponential advantage. It is not a little bit better than classical computing; it is hundreds of millions times better than the previous generation.' • Riverlane aims to be the next Arm with its quantum computer chip As an example, he said that by 2028, when a quantum computer should be able to carry out millions of tasks before being overwhelmed, the same processing power would require 'a billion-trillion GPUs' — the circuits used in existing computers to handle heavy computational tasks. 'That is breakthrough capability and anyone who isn't using that is going to get left out very, very quickly,' said Brierley. The government has committed £500 million to help develop Britain's quantum computing industry — money that will be invested over three years from next April. An additional £170 million has been allocated for quantum development through its 'AI growth zones'. This national quantum strategy has set achieving one million error-corrected quantum operations by 2028 as its target. Brierley welcomed the prominence that quantum computing was given in the government's industrial strategy, as well as the cash. 'It is key that that gets spent quickly and doesn't get spread out across many small projects, but really goes after the big, key industrial scale problems.' Mullally added that while other countries, including in Europe, were investing more, Britain had established a lead in the 2010s, including a strong talent base, that it can still build on. But he warned against dithering. 'The task now is to get on with it. It is about pace, the next three years are absolutely critical.'
Yahoo
18-07-2025
- Science
- Yahoo
Small, room-temperature quantum computers that use light on the horizon after breakthrough, scientists say
When you buy through links on our articles, Future and its syndication partners may earn a commission. Scientists have demonstrated that a photonic qubit — a quantum bit powered by a particle of light — can detect and correct its own errors while running at room temperature. They say it is a foundational step toward scalable quantum processors. In a new study published June 4 in the journal Nature, researchers at Canadian quantum computing startup Xanadu created a so-called "Gottesman–Kitaev–Preskill" (GKP) state directly on a silicon chip. GKP states are a type of quantum state that spreads information across multiple photons in a pattern that enables small errors to be spotted and corrected. This means that each qubit is capable of correcting itself, without needing to be bundled into large arrays of redundant qubits — a common requirement in today's error-correction methods. It marks the first time this type of error-resistant quantum state has been generated using a process compatible with conventional chip manufacturing, the scientists said. The breakthrough suggests that error-correcting quantum states could be produced with the same tools used to manufacture conventional computer chips — bringing reliable, room-temperature quantum hardware a step closer to reality. The qubit-cooling conundrum Quantum computers work very differently from the classical machines we use today. Classical computers store information in binary bits, represented as either 1s or 0s. Quantum systems, meanwhile, use qubits that can exist in a "superposition" of both states. This enables them to solve complex calculations in parallel, and they can one day perform far beyond the reach of conventional systems. But qubits are notoriously fragile. Even the smallest fluctuations in temperature, electromagnetic radiation or environmental noise can disrupt a qubit's state and corrupt its data. To guard against this, many quantum systems operate at temperatures close to absolute zero (minus 459.67 degrees Fahrenheit or minus 273.15 degrees Celsius) using complex cooling systems to maintain "coherence" — the fragile quantum connection through which qubits perform calculations. Related: Coldest-ever qubits could lead to faster quantum computers While this cooling helps preserve quantum information, it also makes quantum computers bulky, expensive and impractical to scale. Xanadu's solution seeks to address this by using photons — particles of light that don't require deep cooling — to build qubits that run on silicon chips at room temperature. The team's GKP demonstration tackles another key challenge: quantum error correction. Most quantum systems today rely on groupings of multiple physical qubits that work together to detect and fix errors, known as a "logical qubit." Xanadu's photonic qubit sidesteps this by handling correction within each individual qubit, simplifying the hardware and paving the way for more scalable designs. "GKP states are, in a sense, the optimal photonic qubit, since they enable logic gates and error correction at room temperature and using relatively straightforward, deterministic operations," Zachary Vernon, CTO of hardware at Xanadu, said in a statement. RELATED STORIES —'Reliable quantum computing is here': Novel approach to error-correction can reduce errors in future systems up to 1,000 times, Microsoft scientists say —'Quantum hard drives' closer to reality after scientists resolve 10-year-old problem —World's 1st mechanical qubit uses no light or electronics. It could lead to ultra-precise gravity-sensing tech. "This demonstration is an important empirical milestone showing our recent successes in loss reduction and performance improvement across chip fabrication, component design and detector efficiency." The result builds on Xanadu's earlier development of Aurora, a modular quantum computing platform that connects multiple photonic chips using optical fiber. While Aurora addressed the challenge of scaling across a network, this new chip focuses on making each qubit more robust — a critical requirement for building fault-tolerant systems. Xanadu representatives said the next challenge was reducing optical loss, which happens when photons are scattered or absorbed as they travel through the chip's components.
Yahoo
04-07-2025
- Business
- Yahoo
Qedma raises $26m in Series A funding
Qedma, an Israel-based company specialising in solutions for quantum computing errors, has secured $26m (NIS87bn) in Series A funding, with IBM among the new investors. The investment round was led by Glilot Capital Partners, alongside Korean Investment Partners and existing supporters including TPY Capital. Qedma was founded in 2020 following collaborative discussions among Technion physicist Netanel Lindner, Asif Sinay, and Hebrew University professor Dorit Aharonov. The trio came together over insights into noise patterns in quantum devices and error correction strategies, establishing a firm focused on integrating theoretical and practical solutions to quantum errors. Qedma aims to tackle the critical issue of quantum noise resilience and plans to demonstrate quantum advantage through collaborations with various companies and research institutions. According to the start-up, quantum computing faces significant challenges due to errors that arise as systems grow in size and complexity. Existing error correction techniques, though theoretically effective, require substantial overhead, which often involve up to 1,000 qubits to correct errors for a single qubit. Qedma's software is engineered to accelerate progress towards practical quantum computing by reducing these errors. It is said to enhance hardware performance and enable larger-scale computations than currently possible. The company's solution works by executing a protocol when a user requests a quantum algorithm. This protocol identifies the noise characteristics unique to each device and adjusts the algorithm to suppress specific types of errors. Remaining errors are mitigated through post-processing methods. As technology advances, Qedma aims to integrate proprietary error correction techniques combined with mitigation strategies for increased reliability. Qedma CEO and co-founder Sinay said: 'While the industry is making massive investments in quantum computing infrastructure and scaling the number of qubits, our platform-agnostic approach allows us to extract maximum value from existing hardware across all quantum computing architectures. 'By accelerating the timeline to practical quantum computing, we're establishing a fundamental foundation that will become even more crucial as quantum systems scale." In September 2024, Qedma joined forces with IBM to offer its Quantum Error Suppression and Error Mitigation (QESEM) software via the latter's Qiskit Functions platform. The collaboration with IBM focuses on addressing noise-induced errors in quantum operations. These errors present a major challenge in achieving Quantum Advantage, where quantum computers surpass classical systems in practical applications. By integrating QESEM, quantum developers, data scientists, and computational scientists are expected to interact with quantum computers as seamlessly as they do with classical systems. This approach allows for the efficient execution of quantum algorithms without the need for extensive qubit overheads, said Qedma. IBM venture capital global head Emily Fontaine said: "Qedma continues to make meaningful contributions that are progressing the quantum computing space at a pivotal time in the industry. "We're excited to see their next chapter as they scale their impact, working towards their mission to advance quantum computation and provide error reduction software solutions to the quantum ecosystem." "Qedma raises $26m in Series A funding" was originally created and published by Verdict, a GlobalData owned brand. The information on this site has been included in good faith for general informational purposes only. It is not intended to amount to advice on which you should rely, and we give no representation, warranty or guarantee, whether express or implied as to its accuracy or completeness. You must obtain professional or specialist advice before taking, or refraining from, any action on the basis of the content on our site. Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
