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1. chinaXiv:202102.00063 [pdf]

Quantum entanglement measurement based on belief entropy

Xue, Yige; Deng, Yong
Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

Partial entropy entanglement is a very popular method to measure the entanglement of quantum systems, which is based on the classic von Neumann entropy. However, because of the problem of classical von Neumann entropy in measuring the uncertainty of quantum systems, the partial entropy entanglement is not efficient enough to measure the entanglement of quantum systems. The new entropy measure of quantum uncertainty is a model for measuring the uncertainty of a quantum system based on the classic von Neumann entropy and belief entropy, which has higher performance than the classic von Neumann entropy in measuring the uncertainty entropy of a quantum system.Based on the new entropy measure of quantum uncertainty and the classic partial entropy entanglement, this paper proposes a new model to measure the quantum entanglement measurement, named quantum entanglement measurement based on belief entropy. When the new entropy measure of quantum uncertainty degenerates to classical von Neumann entropy, the quantum entanglement measurement based on belief entropy will degenerate to classical partial entropy entanglement. Numerical examples are used to prove that quantum entanglement measurement based on belief entropy is more efficient and reliable in measuring the entanglement of quantum systems than the classic partial entropy entanglement. The experimental results show that the quantum entanglement measurement based on belief entropy can measure the uncertainty of quantum systems more efficiently and reliably than the classical classic partial entropy entanglement.

submitted time 2021-02-10 Hits102Downloads47 Comment 0

2. chinaXiv:202012.00024 [pdf]

催产素对学习和记忆的调节效应:来自动物与人类的研究证据

周梦晗; 张源; 高山; Keith Kendrick; 姚树霞
Subjects: Psychology >> Cognitive Psychology

作为一种神经肽,催产素对于个体社会行为和情绪加工有着十分广泛的调节作用,其中就包括对在人们工作和生活中扮演着关键角色的学习和记忆活动的影响。采用不同模态技术的动物和人类研究一致表明了催产素对于学习和记忆具有重要的调节作用,这一作用可能是催产素通过与多巴胺奖赏通路、边缘系统等学习和记忆关键脑网络中广泛分布的催产素受体相结合,进而调整其功能状态而实现对学习和记忆的调节的;但与此同时,催产素对学习和记忆的促进或抑制作用会因实验范式、刺激材料、给药时间、剂量和位置等因素的不同而存在差异。未来需要协同动物和人类研究的各自优势,采用规范化的实验任务设置和给药程序克服当前该领域的研究局限,并积极发掘催产素在干预相关精神疾病患者学习和记忆加工缺陷中的应用潜力。

submitted time 2020-12-14 Hits664Downloads349 Comment 0

3. chinaXiv:202009.00119 [pdf]

基于生成对抗网络的智能音乐制作综述

马丹; 吴跃
Subjects: Computer Science >> Integration Theory of Computer Science

如何借助计算机算法进行音乐的自动或半自动化生成工作一直是人工智能领域的一个研究热点。近年来,随着深度学习技术的深入发展,使用基于神经网络并契合乐理先验知识的方法来生成高质量、多样性智能音乐的任务也引起了研究者的重视。其中,引入生成对抗机制以提升生成效果的工作取得了一定成果,同时也具备极大的提升空间。为了更好地推进后续研究工作,对相关领域的现有成果进行全面而系统的梳理、分析、总结具有比较重要的意义。首先对机器作曲的发展过程进行了回顾,对音乐领域常用的GANs相关重要模型进行了简要归纳介绍,对引入了生成对抗训练机制的音乐生成方法进行了重点分析,最后对该领域的现状进行了总结并进一步展望了未来的发展方向。

submitted time 2020-09-28 From cooperative journals:《计算机应用研究》 Hits170Downloads92 Comment 0

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