Research Trend for Quantum Dot Quantum Computing

哲也 山崎

Vaishali Sood, Rishi Pal Chauhan

Abstract The field of quantum computing holds tremendous potential for advancing sustainable development through the design and development of sustainable materials and technologies. The domain has undergone significant growth and development in recent years, necessitating a quantitative and inclusive analysis of research advancements to comprehend research trends and directions. Henceforth, a scientometric analysis of scholarly literature from the Scopus database has been conducted to understand the research status of the discipline by analysing publication trends, most cited article analysis, document co‐citation analysis, and author co‐citation analysis. Furthermore, the CiteSpace tool is used to fulfil the visualization needs and comprehensive analysis of scientific literature to highlight emerging topics and quantum computing trends. The results of the study unveil spin‐based quantum computing and lithographically defined quantum dots with exchange coupling as highly promising frontiers for exploration. These cutting‐edge advancements exhibit exceptional potential for attaining remarkable fidelity in the quantum computing domain. Furthermore, it uncovers a trove of potential research areas for delving into the captivating phenomenon of quantum entanglement. Nuclear magnetic resonance, quantum dots, and spontaneous parametric down‐conversion techniques emerge as promising areas, enticing scholars to embark on scientific quests aimed at unravelling the intricate complexities of entanglement. The study offers a comprehensive overview of quantum computing research advancements, serving as a valuable resource for researchers and policymakers driving sustainable development.

哲夫 小寺, Tetsuo Kodera

Gang CAO, Guo‐Ping Guo, Hai‐Ou Li +2 more

Quantum computing is the outcome of the size of semiconductor chips breaking the limits of classical physics, and is a landmark technology in the post-Moore's law era. Making use of the quantum properties of electrons in semiconductor quantum dots is believed to be one of the most promising candidates for the realization of quantum computing. In recent years, a series of breakthroughs have been made, including the preparation and readout of qubits, and the manipulation of quantum logic gates. This paper first introduces the background and significance of research on semiconductor quantum dot-based quantum computing and then provides an overview of the developments regarding spin-, charge-, and few-electron-based qubits, as well as the long distance coherent coupling of qubits. Finally, we discuss future trends in semiconductor-based quantum computing.

Xin Zhang, Hai-Ou Li, Ke Wang +3 more

Semiconductor quantum dots are promising hosts for qubits to build a quantum processor. In the last twenty years, intensive researches have been carried out and diverse kinds of qubits based on different types of semiconductor quantum dots were developed. Recent advances prove high fidelity single and two qubit gates, and even prototype quantum algorithms. These breakthroughs motivate further research on realizing a fault tolerant quantum computer. In this paper we review the main principles of various semiconductor quantum dot based qubits and the latest associated experimental results. Finally the future trends of those qubits will be discussed.