Atlantic Quantum has announced new research showing that their fluxonium-based qubit architecture has the lowest error rates for superconducting qubits. The study, published in Physical Review X, demonstrates how this new qubit architecture can perform operations with greater accuracy than previously achieved. The technology, developed by Atlantic Quantum’s co-founders at MIT, is now the basis of the company’s quantum processors. The research shows that the new qubit architecture supports two-qubit gate fidelities exceeding 99.9% accuracy and single-qubit gate fidelities of 99.99% accuracy. This is a significant step towards achieving fault tolerance in quantum computing.
Quantum Computing Advancements by Atlantic Quantum
The research, published in Physical Review X, shows how the company’s unique superconducting qubit architecture can perform operations between qubits (the fundamental units of quantum computers) with greater accuracy than previously achieved. This technology, developed over several years at MIT by the co-founders of Atlantic Quantum, is now the foundation of the company’s quantum processors.
Quantum computers are designed to efficiently solve complex computational problems in key industries such as pharmaceuticals, industrial chemistry, and materials science. However, high error rates in current quantum computers and the need for error correction have prevented qubit architecture from implementing the desired applications. These issues, along with physically complex hardware requirements, have hindered the practical use and adoption of quantum computing. This technology could account for nearly $1.3 trillion in value by 2035, according to McKinsey.
Reducing Error Rates in Quantum Computing
The new research by Atlantic Quantum highlights the importance of reducing error rates for constructing useful quantum computers. The study shows that the introduced qubit architecture supports two-qubit gate fidelities exceeding 99.9% accuracy and single-qubit gate fidelities of 99.99% accuracy. This is the first time that such high performance has been achieved with a different type of superconducting qubit since the invention of the more standard transmon qubit in 2007.
Reducing error rates is a crucial step towards achieving fault tolerance in quantum computing. This directly affects the qubits required for error-correction protocols, significantly reducing resource overhead. Historically, the quantum computing sector has tackled the challenges of high error rates and restricted scalability separately, with solutions that improved one typically coming at the cost of the other.
Atlantic Quantum is working to evolve quantum computing from vision to reality by building fault-tolerant quantum computers using a unique qubit architecture and proprietary qubit control technique. The company is focused on eliminating the trade-offs that typically arise when trying to solve both accuracy and scalability issues simultaneously. They are developing quantum computers based on a new circuit that can address both accuracy and scalability from the ground up.
The publication of this research comes during a period of significant growth for Atlantic Quantum. The company recently completed the construction of its first R&D facility and opened a Swedish subsidiary for chip fabrication. In August 2023, Atlantic Quantum was awarded a Direct-to-Phase II contract worth $1.25 million by AFWERX to develop fluxonium-based quantum computing hardware to address the most pressing challenges of the Department of the Air Force (DAF).
Atlantic Quantum
Atlantic Quantum is committed to developing fault-tolerant quantum hardware, which they believe is the key to commercialising quantum computing. The company has a team of experts in the field based in Cambridge and Gothenburg, reflecting their MIT and Chalmers roots. Their combined U.S. and EU presence helps attract talent, investments, and partnerships to accelerate the development and commercialisation of scalable quantum computing.
“This result marks the first time that the state-of-the-art single- and two-qubit gate performance was advanced with a different type of superconducting qubit since the invention of the more standard transmon qubit in 2007,” said Leon Ding, co-founder and lead author of the research paper.
“Historically, the quantum computing sector has approached the challenges of high error rates and restricted scalability separately, and solutions that improved one typically came at the cost of the other. At Atlantic Quantum, we’re building quantum computers based on a new circuit that can address both accuracy and scalability from the ground up. We are singularly focussed on eliminating the tradeoffs that typically arise when trying to solve both issues simultaneously.” said Bharath Kannan, co-founder and CEO at Atlantic Quantum.
Summary
Atlantic Quantum has developed a new fluxonium-based qubit architecture for quantum computers, achieving the lowest error rates to date for superconducting qubits, according to research published in Physical Review X. This advancement is a significant step towards building practical, fault-tolerant quantum computers, as it directly impacts the number of qubits required for error-correction protocols, thereby significantly reducing resource overhead.
- Atlantic Quantum, a quantum computer developer, has announced new research showing their fluxonium-based qubit architecture has the lowest error rates yet for superconducting qubits.
- The research, published in Physical Review X, demonstrates how this new qubit architecture can perform operations between qubits with greater accuracy than previously achieved.
- The technology, developed by Atlantic Quantum’s co-founders at MIT, forms the basis of the company’s quantum processors.
- Quantum computers are designed to solve complex computational problems in industries like pharmaceuticals and materials science. However, high error rates and complex hardware requirements have hindered their practical use.
- Atlantic Quantum is working to build fault-tolerant quantum computers using their novel qubit architecture and proprietary control technique.
- The research shows that the new qubit architecture supports two-qubit gate fidelities with over 99.9% accuracy and single-qubit gate fidelities of 99.99% accuracy.
- Co-founders Leon Ding, Youngkyu Sung, Bharath Kannan, Simon Gustavsson, and William Oliver stress the importance of reducing error rates for constructing useful quantum computers.
- The company recently completed its first R&D facility and opened a Swedish subsidiary for chip fabrication. In August 2023, it was selected by AFWERX for a $1.25 million contract to develop fluxonium-based quantum computing hardware.