quantum computing

Quantum computing is advancing, with giants like Google and IBM providing services, yet challenges remain due to insufficient qubits and their susceptibility to external influences, requiring complex entanglement for reliable results. Photonic approaches offer room temperature operation and faster speeds, but face loss issues; however, a novel method demonstrated by researchers uses laser pulses to create inherently error-correcting logical qubits, simplifying quantum computing but still needing improvements in error…

The biggest challenge in the development of the quantum computer consists of the magnetic and electrical noise that disturbs the quantum effect, and therefore the processor QPU (Quantum Processing Unit) is cooled down to the lowest possible temperature just above the absolute zero point of -273 degrees. This happens in the cryostat, which can be seen in the picture. The processor is located at the bottom of the cryostat. Credit: Ola J. Joensen, NBIScientists around the world work hard to rinse quantum systems for noise,…

This extreme fragility might make quantum computing sound hopeless. But in 1995, the applied mathematician Peter Shor discovered a clever way to store quantum information. His encoding had two key properties. First, it could tolerate errors that only affected individual qubits. Second, it came with a procedure for correcting errors as they occurred, preventing them from piling up and derailing a computation. Shor’s discovery was the first example of a quantum error-correcting code, and its two key properties are the…

Hybrid integration of a designer nanodiamond with photonic circuits via ring resonators. CreditSteven Burrows/Sun GroupJILA breakthrough in integrating artificial atoms with photonic circuits advances quantum computing efficiency and scalability.In quantum information science, many particles can act as “bits,” from individual atoms to photons. At JILA, researchers utilize these bits as “qubits,” storing and processing quantum 1s or 0s through a unique system.While many JILA Fellows focus on qubits found in nature, such as…

The release of the film Oppenheimer, in July 2023, has renewed interest in the enigmatic scientist J. Robert Oppenheimer’s life. While Oppenheimer will always be recognized as the father of the atomic bomb, his early contributions to quantum mechanics form the bedrock of modern quantum chemistry. His work still informs how scientists think about the structure of molecules today.Early on in the film, preeminent scientific figures of the time, including Nobel laureates Werner Heisenberg and Ernest Lawrence, compliment the…

Scientists at the DOE’s Brookhaven National Laboratory have discovered that coating tantalum with magnesium significantly enhances its properties as a superconducting material for quantum computing. This coating prevents oxidation, increases purity, and improves the superconducting transition temperature of tantalum, offering promising advancements for the development of qubits and the future of quantum computing.A thin-film coating protects against oxidation that can degrade superconductivity and quantum…

Researchers have achieved quantum coherence at room temperature by embedding a light-absorbing chromophore within a metal-organic framework. This breakthrough, facilitating the maintenance of a quantum system’s state without external interference, marks a significant advancement for quantum computing and sensing technologies.Researchers observe the quantum coherence of a quintet state with four electron spins in molecular systems for the first time at room temperature.In a study published in Science Advances, a group of…

If you’ve ever wondered what quantum computers actually do, you’re not alone. The truth is, no one knows what modern problems this technology can solve. Google launched a multi-year, global competition on Monday to find real-world use cases for quantum computing, and the finalists will split $5 million.No Google AI Search, I Don’t Need to Learn About the “Benefits of Slavery” “While there are many reasons to be optimistic about the potential of quantum computing, we’re still somewhat in the dark about the full scope of…

We’re still years away from seeing physical quantum computers break into the market with any scale and reliability, but don’t give up on deep tech. The market for high-level quantum computer science — which applies quantum principles to manage complex computations in areas like finance and artificial intelligence — appears to be quickening its pace. In the latest development, a startup out of San Sebastian, Spain, called Multiverse Computing is announcing that it has raised €25 million (or $27 million) in an equity…

Researchers have developed a groundbreaking light-based processor that enhances the efficiency and scalability of quantum computing and communication. By minimizing light losses, the processor promises significant advancements in secure data transmission and sensing applications. Credit: SciTechDaily.comA team of scientists has created a reprogrammable light-based quantum processor, reducing light losses and enabling advancements in quantum computing and secure communications.Scientists have created a reprogrammable…