搜索结果: 1-15 共查到“物理学 Mean field”相关记录32条 . 查询时间(0.073 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Random phase approximation for the mean-field electron gas （3）
平均场 电子气 随机相位近似
2023/11/29
Random phase approximation (RPA) was proposed by Bohm and Pines in four seminal papers during 1951-1953 to describe the correlation of fermions, namely the correction to the Hartree-Fock theory. While...
Incorporating Dynamic Mean-Field Theory into Diagrammatic Monte Carlo
Diagram to monte carlo illustration skeleton diagram lattice model the propagators single particle
2014/12/19
The bold diagrammatic Monte Carlo (BDMC) method performs an unbiased sampling of Feyn- man's diagrammatic series using skeleton diagrams. For lattice models the eciency of BDMC can be dramatically im...
Asymptotics of the mean-field Heisenberg model
Asymptotics the mean-field Heisenberg model Mathematical Physics
2012/4/16
We consider the mean-field classical Heisenberg model and obtain detailed information about the magnetization by studying the model on a complete graph and sending the number of vertices to infinity. ...
Study of the neutron skin thickness of ${}^{208}$Pb in mean field models
mean field models
2011/7/20
We study whether the neutron skin thickness $\Delta r_{np}$ of ${}^{208}$Pb originates from the bulk or from the surface of the neutron and proton density distributions in mean field models.
Static and Dynamic Chain Structures in the Mean-Field Theory
Mean-Field Theory Static and Dynamic Chain Structures
2011/7/20
We give a brief overview of recent work examining the presence of $\alpha$-clusters in light nuclei within the Skyrme-force Hartree-Fock model. Of special significance are investigations into $\alpha$...
Stochastic treatment of finite-N effects in mean-field systems and its application to the lifetimes of coherent structures
Stochastic treatment finite-N effects mean-field systems lifetimes of coherent structures
2011/8/29
Abstract: A stochastic treatment yielding to the derivation of a general Fokker-Planck equation is presented to model the slow convergence towards equilibrium of mean-field systems due to finite-N eff...
Non-perturbative heterogeneous mean-field approach to epidemic spreading in complex networks
Non-perturbative heterogeneous mean-field approach epidemic spreading complex networks
2011/9/9
Since roughly a decade ago, network science has focussed among others on the problem of how the spreading of diseases depends on structural patterns. Here, we contribute to further advance our underst...
Unified mean-field approach to voter-like models on networks
Complex networks -Ordering dynamics -Voter models-Mean-field theory
2011/9/5
We propose a generalized framework for the study of voter models in complex networks at the the heterogeneous mean-field (HMF) level that (i) yields a unified picture for existing copy/invasion proces...
On mean field solutions of kinetic exchange opinion models
kinetic exchange opinion models The dynamics
2011/8/26
A solution for the discretised version of some recently proposed kinetic exchange opinion dynamics models with two-agent interactions (Lallouache et. al.,Phys. Rev E 82, 056112 (2010)) is provided.A g...
Transport and Spectra in the Half-filled Hubbard Model: A Dynamical Mean Field Study
Hubbard model dynamical mean field theory iterated per-turbation theory optical conductivity hysteresis
2010/11/24
We study the issues of scaling and universality in spectral and trans-port properties of the infinite dimensional particle–hole symmetric (half–filled) Hubbard model within dynamical mean field theory...
A new microscopic nucleon-nucleon interaction derived from relativistic mean field theory
new microscopic nucleon-nucleon interaction derived relativistic mean field theory
2011/1/7
A new microscopic nucleon-nucleon (NN) interaction has been derived for the first time from
the popular relativistic mean field theory (RMFT) Lagrangian. The NN interaction so obtained
remarkably re...
Spontaneous imbibition in a slit pore: a lattice-gas dynamic mean field study
Spontaneous imbibition slit pore lattice-gas dynamic mean field study
2010/11/22
We present a theoretical study of spontaneous imbibition in a slit pore using a lattice-gas model and a dynamic mean- eld theory. Emphasis is put on the in uence of the precursor lms on the speed of ...
Properties and structure of N=Z nuclei within relativistic mean field theory
mean field theory BCS approximation binding energy
2009/9/17
The axially deformed relativistic mean field theory with the force NLSH has been performed in the blocked BCS approximation to investigate the properties and structure of N=Z nuclei from Z=20 to Z=48....
A systematic study of the superdeformation of Pb isotopes with relativistic mean field theory
Pb isotopes superdeformation relativistic mean field theory
2009/8/17
The microscopically constrained relativistic mean field theory is used to investigate the superdeformation for Pb isotopes. The calculations have been performed with the four different interactions NL...
Shell evolution at N=20 in the constrained relativistic mean field approach
shell quenching N=20 relativistic mean field theory nuclear deformation
2009/8/14
The shell evolution at N=20, a disappearing neutron magic number observed experimentally in very neutron-rich nuclides, is investigated in the constrained relativistic mean field (RMF) theory. The tr...