Analyzing and Unifying Robustness Measures for Excitation Transfer Control in Spin Networks

Article Multidisciplinary Sciences

Suppressing quantum errors by scaling a surface code logical qubit

Rajeev Acharya et al.

Summary: Quantum error correction, achieved by encoding logical qubits within many physical qubits, can reduce errors and improve the performance of quantum computing. Researchers have demonstrated that their system of superconducting qubits has sufficient performance to overcome the additional errors from increasing qubit number. This experimental demonstration paves the way for reaching the logical error rates required for practical quantum computation.

NATURE (2023)

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Article Automation & Control Systems

The multimarginal optimal transport formulation of adversarial multiclass classification

Nicolas Garcia Trillos et al.

Summary: This study examines a family of adversarial multiclass classification problems and provides equivalent reformulations using two different approaches. The results reveal the geometric structure of these problems and extend previous findings in binary classification. Furthermore, computational implications suggest that our solutions can recover optimal classification rules and adversarial strategies for the original problem.

JOURNAL OF MACHINE LEARNING RESEARCH (2023)

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Review Physics, Multidisciplinary

One decade of quantum optimal control in the chopped random basis

Matthias M. Muller et al.

Summary: This review article presents the development and application of the chopped random basis (CRAB) ansatz for quantum optimal control. The CRAB strategy has the capability to satisfy experimental constraints and switch between open-loop and closed-loop optimization, contributing to the development of quantum technology on various physical platforms.

REPORTS ON PROGRESS IN PHYSICS (2022)

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Review Quantum Science & Technology

Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe

Christiane P. Koch et al.

Summary: This paper reviews recent progress in the application and development of quantum optimal control in quantum technologies, and discusses future challenges and directions.

EPJ QUANTUM TECHNOLOGY (2022)

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Article Optics