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Quantum computing on the verge

Philip Ball

Quantum computing is booming in the world of business, with about 400 competing companies, lots of rival qubit platforms and varying measures of merit. Philip Ball explores how the quantum tech landscape is developing.

Physics WorldNov 1, 20250 citations

Error Control Begins to Shape Quantum Architectures

Chris Edwards

The overhead of error correction presents a serious challenge to scaling up quantum computing and may produce unexpected winners.

Communications of the ACMDec 20, 20221 citation

AN INVESTIGATION INTO THE TRANSFORMATIVE POWER OF QUANTUM COMPUTING IN SCIENTIFIC RESEARCH

Dr. Arven L. Thaylen, Dr. Senira D. Valtome

We are on the verge of a new era in computation, one that operates on the strange and wonderful rules of the quantum world. This article explores the story of quantum computing, a technology that promises to solve problems far beyond the reach of today's fastest supercomputers. We'll journey from the core ideas that make it all possible—concepts like superposition and entanglement—to the incredible machines being built in labs around the world. We'll see how these machines are being programmed and witness the first hints of their power in fields like medicine, materials science, and cybersecurity. Finally, we'll take an honest look at the immense challenges that still lie ahead on the path to building a truly powerful quantum computer. This is a story of human ingenuity pushing the boundaries of science, a tale of the immense potential and practical hurdles of the coming quantum age.We are on the verge of a new era in computation, one that operates on the strange and wonderful rules of the quantum world. This article explores the story of quantum computing, a technology that promises to solve problems far beyond the reach of today's fastest supercomputers. We'll journey from the core ideas that make it all possible—concepts like superposition and entanglement—to the incredible machines being built in labs around the world. We'll see how these machines are being programmed and witness the first hints of their power in fields like medicine, materials science, and cybersecurity. Finally, we'll take an honest look at the immense challenges that still lie ahead on the path to building a truly powerful quantum computer. This is a story of human ingenuity pushing the boundaries of science, a tale of the immense potential and practical hurdles of the coming quantum age.

European Journal of Emerging Cloud and Quantum ComputingDec 30, 20240 citations

Closing in on quantum error correction

Don Monroe

Quantum computers will only become practical when they implement quantum error correction.

Communications of the ACMSep 24, 20190 citations

Inside Cat Qubits Physics, Implementation, and the Road to Fault Tolerance - Roberto Negrin

Negrin, Roberto

Alice & Bob is a quantum computing company based in Paris and Boston aiming to build the first universal, fault-tolerant quantum computer. Founded in 2020, the company has raised €130M, grown to 150+ employees, and reported experimental results surpassing those of larger incumbents. Advised by Nobel Prize–winning researchers, Alice & Bob specializes in cat qubits, a technology pioneered by its founders and later adopted by Amazon, which can reduce the hardware needed for a useful large-scale quantum computer by up to 200× compared with competing approaches. This talk introduces cat qubits, quantum bits built from two well-separated states of a nonlinear superconducting resonator, and shows how their built-in stability enables hardware-efficient error correction. It will explain, at a high level, how cat qubits work, why they can reduce the number of qubits needed for useful algorithms, and what this means for reaching fault tolerant quantum computing. We’ll also touch on real progress, the benefits, and the key challenges aheadAlice & Bob is a quantum computing company based in Paris and Boston aiming to build the first universal, fault-tolerant quantum computer. Founded in 2020, the company has raised €130M, grown to 150+ employees, and reported experimental results surpassing those of larger incumbents. Advised by Nobel Prize–winning researchers, Alice & Bob specializes in cat qubits, a technology pioneered by its founders and later adopted by Amazon, which can reduce the hardware needed for a useful large-scale quantum computer by up to 200× compared with competing approaches. This talk introduces cat qubits, quantum bits built from two well-separated states of a nonlinear superconducting resonator, and shows how their built-in stability enables hardware-efficient error correction. It will explain, at a high level, how cat qubits work, why they can reduce the number of qubits needed for useful algorithms, and what this means for reaching fault tolerant quantum computing. We’ll also touch on real progress, the benefits, and the key challenges ahead

Nov 13, 20250 citations

Focus: Landmarks—Correcting Quantum Computer Errors

David Lindley

In the mid-1990s, researchers proposed methods to preserve the integrity of quantum bits—techniques that may become the key to practical quantum computing on a large scale.

Jun 10, 20160 citations

Quantum computing on the verge: correcting errors, developing algorithms and building up the user base

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Quantum computing on the verge: correcting errors, developing algorithms and building up the user base

Abstract

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