搜索结果: 151-165 共查到“知识库 统计物理学”相关记录194条 . 查询时间(2.622 秒)
从几何相变阐明重正化群方法的概念和实质；通过与非线性函数迭代类比，揭示临界点与不动点的联系；论要这ＲＧ方法在相变研究及社会学方面的应用。
Dynamical Scaling and the Finite Capacity Anomaly in 3-Wave Turbulence
Dynamical Scaling Finite Capacity Anomaly 3-Wave Turbulence
2010/4/7
We present a systematic study of the dynamical scaling process leading to the establishment of the Kolmogorov--Zakharov (KZ) spectrum in weak 3-wave turbulence. In the finite capacity case, in which t...
本文在Lurie模型的基础上,建立了一种近似计算状态方程的方法.得到了Lurie模型的状态方程所满足的参数方程.该模型的手征相变的相图表明:存在一个临界点c将一级相变和二级相变分开.仔细分析压强对净重子数密度的等温线,其结果表明:发生一级相变时,有过冷和过热的亚稳态,存在有自发破缺的破缺相和无自发破缺的正常相的两相共存.
在有限温度下手征孤子的消失与手征相变
手征相变 消失 手征孤子 有限温度
2009/6/5
本文探讨了手征孤子模型的高温行为,计算并分析了热效应对手征孤子解及Fermion对凝聚的影响,提出了关于退禁闭相变温度低于手征相变温度的一种可能的物理机制.
Effects of interference in the dynamics of spin-1/2 transverse XY Chain driven periodically through quantum critical points
Effects of interference dynamics of spin-1/2 transverse XY Chain quantum critical points
2010/4/13
We study the effects of interference on the quenching dynamics of a one-dimensional spin 1/2 $XY$ model in the presence of a transverse field ($h(t)$) which varies sinusoidally with time as $h = h_0\c...
Adiabatic dynamics in a spin-1 chain with uniaxial single-spin anisotropy
Spin chains ladders and planes (theory) Quantum phase transitions (theory) Density matrix renormalization group calculations
2010/4/13
We study the adiabatic quantum dynamics of an anisotropic spin-1 XY chain across a second order quantum phase transition. The system is driven out of equilibrium by performing a quench on the uniaxial...
基于CD8+ T记忆细胞的线性和逆线性分化假说分别建立了数学模型，并研究了各种T细胞亚类的动力学.发现在优化剂量抗原入侵的条件下，两个模型均能产生记忆，并可较好地模拟实验结果.通过进一步模拟发现CD8+ T细胞记忆与抗原的存在紧密相关，再次证实了抗原在维持T细胞记忆中的作用.另外还讨论了记忆细胞寿命的问题.认为逆线性假说具有更强的反应性和记忆性.
统计物理中的模拟方法
2007/12/13
本文进一步发展了文献[6]中所提出的统计物理中的模拟方法。仔细地比较了模型系统与真实体系的性质,得到了计算力学量平均值的一般公式,并指出了应用它研究不可逆过程的可能性。
统计物理中的一个新表象——Ⅰ.Γ2表象的数学结构
2007/12/12
本文引入扩大的希柏特空间Г2≡Г×Г,证明在其中对混合统计系综的平均值蜕化为对某一量子态的乎均,并给出了新表象中诸矩阵的具体形式。统计微扰论中的Wick-Bloch定理是Г2空间矩阵本身性质的必然推论。
Statistics of Eigenfunctions in 1D Tight Binding Model:
Distribution of Riccati Variable
one-dimensional tight binding model distribution of Riccati
variable Lorentzian distribution
2007/8/15
2001Vol.36No.3pp.271-280DOI:
Statistics of Eigenfunctions in 1D Tight Binding Model:
Distribution of Riccati Variable
WANG Wen-Ge
Department of Physics, Southeast Univer...
Wave Mechanics or Wave Statistical Mechanics
geometrical optics classical statistical mechanics quantum
mechanics classical limit
2007/8/15
2007Vol.48No.2pp.243-244DOI:
Wave Mechanics or Wave Statistical Mechanics
QIAN Shang-Wu1 and XU Lai-Zi2
1 Physics Department, Peking University, Beijing 100871, China
2 ...
Statistical Gauge Theory for Relativistic Finite Density Problems
finite density relativistic theory quantum fluctuation
hadronic system statistical gauge field dark matter
2007/8/15
2001Vol.35No.3pp.311-318DOI:
Statistical Gauge Theory for Relativistic Finite Density Problems
YING Shu-Qian
Research Center for Theoretical Physics, Physics Department,...
Wigner Distribution Function and Husimi Function
of a Kind of Squeezed Coherent State
Wigner function Husimi function squeezed coherent state IWOP technique
2007/8/15
2007Vol.47No.3pp.427-430DOI:
Wigner Distribution Function and Husimi Function
of a Kind of Squeezed Coherent State
FAN Hong-Yi and LIU Shu-Guang
Department of Materials ...
Scheme for Direct Measurement of Wigner Characteristic
Function for Motion of a Single Trapped Ion
Wigner characteristic function trapped ion
2007/8/15
2006Vol.46No.2pp.306-308DOI:
Scheme for Direct Measurement of Wigner Characteristic
Function for Motion of a Single Trapped Ion
ZHANG Su-Zhen,1 XIE Xiao-Tao,1 and YANG Wen-Xing2,3...
Statistical Entropy of Horowitz-Strominger Black Hole
quantum statistics entropy of black hole membrane model
2007/8/15
2002Vol.37No.5pp.564-566DOI:
Statistical Entropy of Horowitz-Strominger Black Hole
ZHAO Ren, ZHANG Jun-Fang, and ZHANG Li-Chun
Department of Physics, Yanbei Normal Insti...