The Quantum Density Matrix and Its Many Uses

IF 1.8 4区综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES

Journal of the Indian Institute of Science Pub Date : 2023-08-16 DOI:10.1007/s41745-023-00406-4

Apoorva D. Patel

引用次数: 0

Abstract

The quantum density matrix generalises the classical concept of probability distribution to quantum theory. It gives the complete description of a quantum state as well as the observable quantities that can be extracted from it. Its mathematical structure is described, with applications to understanding quantum correlations, illustrating quantum chaos and its unravelling, and developing software simulators for noisy quantum systems with efficient quantum state tomography.

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量子密度矩阵及其多种用途

量子密度矩阵将概率分布的经典概念推广到量子理论中。它给出了量子态的完整描述，以及可以从中提取的可观察量。描述了它的数学结构，应用于理解量子相关性，说明量子混沌及其解开，并开发具有有效量子态层析的噪声量子系统的软件模拟器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Indian Institute of Science MULTIDISCIPLINARY SCIENCES-

CiteScore

4.30

自引率

0.00%

发文量

期刊介绍： Started in 1914 as the second scientific journal to be published from India, the Journal of the Indian Institute of Science became a multidisciplinary reviews journal covering all disciplines of science, engineering and technology in 2007. Since then each issue is devoted to a specific topic of contemporary research interest and guest-edited by eminent researchers. Authors selected by the Guest Editor(s) and/or the Editorial Board are invited to submit their review articles; each issue is expected to serve as a state-of-the-art review of a topic from multiple viewpoints.