近 "状态的分析和相空间描述

IF 1.3 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

International Journal of Theoretical Physics Pub Date : 2024-09-16 DOI:10.1007/s10773-024-05766-w

M. R. Bazrafkan, E. Nahvifard

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引用次数: 0

摘要

我们研究了各种表征中 "近态 "广义形式的条件量子态准备过程。我们推导出纯态分析表征的变换规则。此外，我们还获得了格劳伯-苏达山和维格纳状态表征的变换规则。后者尤其便于在处理混合状态时计算输出状态。此外，我们还证明了小的热噪声可以有效提高成功概率，而不会影响输出状态的非经典特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Analytical and Phase Space Description of “Near” States

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Analytical and Phase Space Description of “Near” States

We investigate a conditional quantum state preparation process for a generalized form of the ‘near states’ in various representations. We derive transformation rules for the analytical representation of pure states. Additionally, we obtain transformation rules for both the Glauber-Sudarshan and Wigner representations of states. The latter is particularly convenient for calculating the output state when dealing with mixed states. Furthermore, we demonstrate that small thermal noises can effectively increase success probability without compromising the nonclassical properties of the output state.

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来源期刊

International Journal of Theoretical Physics 物理-物理：综合

CiteScore

2.50

自引率

21.40%

发文量

258

审稿时长

3.3 months

期刊介绍： International Journal of Theoretical Physics publishes original research and reviews in theoretical physics and neighboring fields. Dedicated to the unification of the latest physics research, this journal seeks to map the direction of future research by original work in traditional physics like general relativity, quantum theory with relativistic quantum field theory,as used in particle physics, and by fresh inquiry into quantum measurement theory, and other similarly fundamental areas, e.g. quantum geometry and quantum logic, etc.