SEMICLASSICAL STUDY OF THE COLLECTIVE OSCILLATION AND FLUCTUATION OF FINITE QUANTUM SYSTEMS
有限量子系统集体振荡和涨落的半经典研究
基本信息
- 批准号:14540272
- 负责人:
- 金额:$ 1.92万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2002
- 资助国家:日本
- 起止时间:2002 至 2004
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Various types of collective excitations have been observed in finite quantum many-body systems such as nuclei or cold atomic gasses trapped in a potential. Bulk properties of these excitations are in many cases described by collective variables which obey classical dynamics. Further properties such as fluctuations in the strength functions are observed in nude, which may be related to non-linear properties characteristic to classical systems. In the present research, these properties have been studied by adopting the above two systems as well as a simpler system which provides a model for a specific structure of wave functions.1) Giant Resonaces in Nuclei and the Fluctuations in the Strength FunctionWe considered several different measures to characterize fluctuations in the strength function of collective excitations. In particular, the fractal dimensions obtained from the fine structure of strenth functions were studied, using as an example the giant quadrupole resonances. We suggest … More ed that the dependence of the fractal dimension on the energy scale may contain the information on the doorway structure of the basic excitation mechanism.2) Semiclassical Study of collective oscillations in cold atomic gases trapped in a potentialCollective oscillations have also been found here albeit the detailed spectroscopic studies are still to be done. We studied various oscillations in bose-fermi mixture using RPA and compared results with semiclassical method. We studied in particular the isovector monopole type oscillation for repulsive systems and made analysis of the instability towards phase separation.3) Nodal Domain Distribution in the Two-dimensional Nonintegrable SystemsThe wave functions of quantum systems may reflect in various ways the nonintegrability in the corresponding classical systems. We considered nodal domain structures in the two- dimensional anharmonic oscillator model. We found that the transition in the nodal domain distirubtions from integrable to chaotic systems is not monotonic but has a characteristic dependence on the nonlinear parameter. Less
在有限量子多体系统中,如被困在势中的原子核或冷原子气体,已经观察到各种类型的集体激发。在许多情况下,这些激发态的体积性质是由服从经典动力学的集体变量来描述的。进一步的性质,如强度函数的波动,可以在裸状态下观察到,这可能与经典系统的非线性特性有关。在本研究中,采用上述两种系统以及为波函数的特定结构提供模型的一种更简单的系统来研究这些性质。原子核中的巨共振和强度函数的波动我们考虑了几种不同的方法来表征集体激励强度函数的波动。特别以巨型四极共振为例,对强度函数精细结构的分形维数进行了研究。我们认为,分形维数对能量尺度的依赖性可能包含了基本激发机制的门道结构信息。在冷原子气体中被困在一个潜在的集体振荡的半经典研究也被发现,尽管详细的光谱研究仍有待完成。我们用RPA方法研究了玻色-费米混合物中的各种振荡,并与半经典方法进行了比较。我们特别研究了排斥系统的等矢量单极子型振荡,并分析了相分离的不稳定性。2维不可积系统的节点域分布量子系统的波函数可以以不同的方式反映相应经典系统的不可积性。我们考虑了二维非谐振子模型中的节点域结构。我们发现在节点域的分布从可积系统到混沌系统的转变不是单调的,而是与非线性参数有特征依赖。少
项目成果
期刊论文数量(30)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Maruyama, H.Yabu, T.Suzuki: "Time-Dependent Dynamics of the Bose-Fermi Mixed Condenced System"Proc. Int. Conf. on Frontiers of Collective Motions. World Scientific(in print). (2003)
T.Maruyama、H.Yabu、T.Suzuki:“玻色-费米混合凝聚系统的瞬态动力学”Proc。
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- 影响因子:0
- 作者:
- 通讯作者:
T.Sogo, T.Miyakawa, T.Suzuki, H.Yabu: "RPA Study of Collective Excitations in the Bose=Fermi Mized Atomic gases with Large Excess of Bosons"Physica B. 329-331P1. 53-54 (2003)
T.Sogo、T.Miyakawa、T.Suzuki、H.Yabu:“玻色=费米米化原子气体中玻色子集体激发的 RPA 研究”Physica B. 329-331P1。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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Random-phase approximation study of collective excitations in the Bose-Fermi mixed condensate of alkali-metal gases
- DOI:10.1103/physreva.66.013618
- 发表时间:2002-02
- 期刊:
- 影响因子:2.9
- 作者:T. Sogo;T. Miyakawa;Toru Suzuki;H. Yabu
- 通讯作者:T. Sogo;T. Miyakawa;Toru Suzuki;H. Yabu
Resonant Monopole Oscillation in the Bose-Fermi Mixed System
玻色-费米混合系统中的共振单极子振荡
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:T.Maruyama;H.Yabu;T.Suzuki
- 通讯作者:T.Suzuki
Collective Ferromagnetism in Two-Component Fermi-Degenerate Gas Trapped in Finite Potential
有限势束缚的二元费米简并气体中的集体铁磁性
- DOI:
- 发表时间:2002
- 期刊:
- 影响因子:0
- 作者:Sogo;T.;Yabu;H
- 通讯作者:H
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SUZUKI Toru其他文献
Doctoral Students in the American Research Universities: the Difference by Major Field: An Analysis of the Doctoral Student Survey 2006 by the National Research Council
美国研究型大学的博士生:专业领域差异:国家研究委员会2006年博士生调查分析
- DOI:
10.1109/iiai-aai.2018.00094 - 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
SUZUKI Toru;TAKEDA Atsushi;TAKADAYA Yoko;FUJII Yoshihiro;Kenji MIWA;Soichiro Aihara - 通讯作者:
Soichiro Aihara
A Study about the Instruction for Master Thesis and Research Papers for "Experience Reflection" in Graduate Schools in Japan
日本研究生院硕士论文和研究论文“经验反思”指导研究
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
SUZUKI Toru;TAKEDA Atsushi;TAKADAYA Yoko;FUJII Yoshihiro;Kenji MIWA - 通讯作者:
Kenji MIWA
学校規模ポジティブ行動支援(SWPBS)が公立中学校における問題行動発生率に及ぼす効果 ―4年間にわたる実行度の変化と問題行動発生率の推移―
全校积极行为支持(SWPBS)对公立初中问题行为发生率的影响 -4年来实施水平的变化和问题行为发生率的变化-
- DOI:
- 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
SUZUKI Toru;FUJII Yoshihiro;MAEBARA Kazuaki;TAKEDA Atsushi;谷川雄一・庭山和貴 - 通讯作者:
谷川雄一・庭山和貴
Questionnaire Survey on the Prevalence of Selective Mutism at Special Needs Schools for Students with Intellectual Disability in Japan
关于日本智障学生特殊需要学校选择性沉默症患病率的问卷调查
- DOI:
10.14391/ajhs.22.101 - 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
SUZUKI Toru;FUJII Yoshihiro;MAEBARA Kazuaki;TAKEDA Atsushi - 通讯作者:
TAKEDA Atsushi
SUZUKI Toru的其他文献
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{{ truncateString('SUZUKI Toru', 18)}}的其他基金
高専と日本の教育の質保障を動かす~学修成果証明のためのスマートコントラクト開発
提高技术学院和日语教育的质量保证 - 开发用于证明学习成果的智能合约
- 批准号:
19H00175 - 财政年份:2019
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Encouragement of Scientists
Elucidation of the mechanism of pathophysiology for precision medicine and development of companion diagnostics
阐明精准医学的病理生理学机制和伴随诊断的发展
- 批准号:
16H05115 - 财政年份:2016
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study on mechanism for freeze trelance of a leech Ozobranchus jantseanus and its application
水蛭Ozobranchus jantseanus的冷冻机制研究及其应用
- 批准号:
15H04577 - 财政年份:2015
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Exploring Innovative Deviation at the Interface of Grammar and Semantic Interpretation
探索语法和语义解释界面的创新偏差
- 批准号:
24520528 - 财政年份:2012
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Softening prediction based on recystalization of ice crystal during frozen storage of agricultural products
基于冰晶再结晶的农产品冻藏软化预测
- 批准号:
24380143 - 财政年份:2012
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Elucidation of cardiovascular pathologies by regulating the processing of the peptide
通过调节肽的加工来阐明心血管病理学
- 批准号:
24659383 - 财政年份:2012
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Elucidation of the cardiovascular disease by the innovative three-dimensional proteome analytical method
创新三维蛋白质组分析方法阐明心血管疾病
- 批准号:
23390204 - 财政年份:2011
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
On the Creativity of Grammar in the Use of Unselected Objects
论未选对象使用中的语法创造性
- 批准号:
21520499 - 财政年份:2009
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Analysis of the effects of cell growth and cell death regulation on tumor development using tumor mice models
利用肿瘤小鼠模型分析细胞生长和细胞死亡调节对肿瘤发展的影响
- 批准号:
21770001 - 财政年份:2009
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Development of New Treatment Strategies of Cardiovascular Pathologies by Using Epigenetic Regulation
利用表观遗传调控开发心血管病理新治疗策略
- 批准号:
20390219 - 财政年份:2008
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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Time delay in molecular photoionization near giant resonances
巨共振附近分子光电离的时间延迟
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401300715 - 财政年份:2018
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Study of giant resonances in neutron drip line nuclei - Related detector development for real-time particle identification
中子滴线核中的巨共振研究 - 实时粒子识别相关探测器的开发
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16H06003 - 财政年份:2016
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Giant resonances and giant dipoles: Cluster-beam spectroscopy of metal nanoparticle ions and amino acid zwitterions
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0354834 - 财政年份:2004
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U.S.-Japan Cooperative Research: Investigation of Microscopic Structure of Exotic Compressional-Mode Giant Resonances
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0342942 - 财政年份:2004
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9315127 - 财政年份:1994
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$ 1.92万 - 项目类别:
Standard Grant
Isovector giant resonances studied by the (^7Li, ^7Be-gamma) reaction
通过 (^7Li, ^7Be-gamma) 反应研究等向量巨共振
- 批准号:
06452032 - 财政年份:1994
- 资助金额:
$ 1.92万 - 项目类别:
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Gull Lake Nuclear Physics Conference on Giant Resonances, Gull Lake, Michigan, August 17-21, 1993
Gull Lake 巨共振核物理会议,密歇根州 Gull Lake,1993 年 8 月 17-21 日
- 批准号:
9312816 - 财政年份:1993
- 资助金额:
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Standard Grant
Workshop on Giant Resonances and Related Phenomena; Notre Dame, Indiana; October 21-23, 1991
巨共振及相关现象研讨会;
- 批准号:
9113928 - 财政年份:1991
- 资助金额:
$ 1.92万 - 项目类别:
Standard Grant
Study of Giant resonances in Hot Nuclei produced in Heavy Ion Fusion Reactions
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- 批准号:
02640219 - 财政年份:1990
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)