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Record-Setting Qubit Performance Marks Important Step Toward Practical Quantum Computing

The promise of so-called “quantum advantage” is simple. By harnessing the counterintuitive rules of quantum mechanics, quantum computers should be able to—in theory—surpass the computational potential of any classical supercomputer. But before quantum advantage drastically changes information technology as we know it, researchers have yet to address the many hurdles that are preventing quantum computers from entering into the mainstream. That said, quantum computing as a field has evolved drama

Microsoft lays out its path to useful quantum computing

On Thursday, Microsoft's Azure Quantum group announced that it has settled on a plan for getting error correction on quantum computers. While the company pursues its own hardware efforts, the Azure team is a platform provider that currently gives access to several distinct types of hardware qubits. So it has chosen a scheme that is suitable for several different quantum computing technologies (notably excluding its own). The company estimates that the system it has settled on can take hardware q

Conserving Qubits by Using Dissipative VQAs for Thermal Prep

Variational quantum algorithms (VQAs) play a significant role in improving the efficiency and accuracy of quantum computers. However, they come with high noise levels, which degrade their performance. Even though current techniques can mitigate their noise, they involve excessive computational overhead, which limits their feasibility. However, in a paper written for IEEE Transactions on Quantum Engineering, Yigal Ilin and Itai Arad propose incorporating dissipative operations to alleviate the e

Quantum Hardware Readiness for Two-Step Quantum Search Algorithm

The traveling salesman problem (TSP) has challenged computer scientists for decades. Finding the shortest route that visits all cities exactly once sounds simple, but it becomes computationally explosive as the number of destinations grows. With applications spanning logistics, manufacturing, and network optimization, any breakthrough in solving TSP efficiently could transform entire industries. A recent paper published in IEEE Transactions on Quantum Engineering by Rei Sato, Cui Gordon, Kazuhi

Is gravity just entropy rising? Long-shot idea gets another look

Isaac Newton was never entirely happy with his law of universal gravitation. For decades after publishing it in 1687, he sought to understand how, exactly, two objects were able to pull on each other from afar. He and others came up with several mechanical models, in which gravity was not a pull, but a push. For example, space might be filled with unseen particles that bombard the objects on all sides. The object on the left absorbs the particles coming from the left, the one on the right absorb

Is Gravity Just Entropy Rising? Long-Shot Idea Gets Another Look

Isaac Newton was never entirely happy with his law of universal gravitation. For decades after publishing it in 1687, he sought to understand how, exactly, two objects were able to pull on each other from afar. He and others came up with several mechanical models, in which gravity was not a pull, but a push. For example, space might be filled with unseen particles that bombard the objects on all sides. The object on the left absorbs the particles coming from the left, the one on the right absorb

IBM aims to build world's most powerful, fault-tolerant quantum computer by 2029

Forward-looking: IBM has outlined a plan to build the world's first large-scale, fault-tolerant quantum computer. Dubbed Quantum Starling, the machine is expected to deliver 20,000 times the compute of modern quantum computers at full capacity. The machine will be housed at a new IBM Quantum Data Center in Poughkeepsie, New York, and is on track to be operational by 2029. The platform will feature 200 logical qubits capable of running 100 million quantum operations. A logical qubit is defined a

Quantum Art integrates Nvidia for its scalable quantum computers

Quantum Art a developer of full-stack quantum computers, has integrated Nvidia’s CUDA-Q hybrid quantum-classical platform into its “qubits.” The integration of Nvidia’s open-source platform into its advanced circuit compiler for logical qubits will advance the performance of scalable quantum computing real-world applications. The integration pairs Israel-based Quantum Art’s Logical Qubit Compiler which utilizes its unique Multi-qubit gates and Multi-Core architecture with NVIDIA CUDA-Q, an ope

Microsoft Says It's Made a Major Quantum Computing Breakthrough With New Chip

The race to shape the future of computing is heating up among tech companies, with Microsoft saying on Wednesday it has made a major breakthrough in quantum computing, potentially paving the way for the technology to address complex scientific and societal challenges. Scientists at the tech giant have spent 17 years developing a new material and framework for quantum computing to help power its new Majorana 1 processor. Microsoft is calling the advancement the world's first quantum processor po

FAQ on Microsoft's topological qubit thing

Q1. Did you see Microsoft’s announcement? A. Yes, thanks, you can stop emailing to ask! Microsoft’s Chetan Nayak was even kind enough to give me a personal briefing a few weeks ago. Yesterday I did a brief interview on this for the BBC’s World Business Report, and I also commented for MIT Technology Review. Q2. What is a topological qubit? A. It’s a special kind of qubit built using nonabelian anyons, which are excitations that can exist in a two-dimensional medium, behaving neither as fermio