Solving the Generalized Higgs Model from the Generalized CRS Model

In this paper,we reveal a direct relation between the generalized one-dimensional Carinena-RanadaSantander(CRS) model and the radial part of two-dimensional generalized Higgs model.By this relation,we construct a series of quasi-exactly solutions for the two-dimensional Higgs model from a solved generalized CRS model.     

Dissipative Model of the Universe

In the present study a trial is carried out to generalize the non-relativistic-dynamic model of cosmology put forward by O. Heckmann. The generalization is performed under the framework of the Gyarmati principle of irreversible thermodynamics for anisotropic inhomogeneous and viscous case. The equation of motion of the dissipative Universe will be a Navier-Stokes tensor equation leading to a Riccatian differential equation general in one dimension. The equations of the Heckmann model compatible with standard cosmology can be obtained from this by means of further simplifying assumption.     

Model of the Plasma Universe

This paper is a review of a number of publications during the last ten years about those changes in our views of the cosmic environment that are the result of advances in plasma physics. To a large extent, these originate from new observational material that space research has supplied. An attempt is made to construct a model of the "plasma universe" which is claimed to be an alternative to the traditional " visual universe" based mainly on observations in the visual octave. Besides the Hubble expansion there is also a "knowledge expansion," which means that knowledge originating from plasma experiments in the laboratory is spreading to the magnetospheres and, it is predicted, sooner or later will also penetrate astrophysics in general. As an example of the usefulness of this model, it is applied to cosmogony, and a review is given of new results from an analysis of the Saturnian rings. The recent reconstruction of certain cosmogonic events with an accuracy better than 1 percent is reviewed and developed.     

Development of the Tetron Model

The main features of the tetron model of elementary particles are discussed in the light of recent developments, in particular the formation of strong and electroweak vector bosons and a microscopic understanding of how the observed tetrahedral symmetry of the fermion spectrum may arise.     

Model of the primitive spinor

In an interpretation of the primitive spinor model, the authors discuss systems whose symmetries are infinite Coxeter groups described, as degenerate systems, by fibrations over the generating space of these groups as a bases.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 78–81, October, 1978.     

Correspondances between the Symmetric Lund Model and the Dual Resonance Model

The Symmetric Lund Model is formulated in a manifestly forward-backward symmetric way and generalized to include transverse momenta and finite width resonances. It is shown to possess multiregge behaviour and inclusive-exclusive connection. It's characteristic exp (?area) damping factor is shown to occur also in dual amplitudes, if the Regge slope is given an imaginary part. The introduction of an infinite family of resonances described by a continuous mass spectrum is advocated; it realizes the synthesis of the Symmetric Lund Model with the Bowler and the Artru-Mennessier models, and improves the connection with the Dual Resonance Model.     

Black Hole Entropies of the Thin Film Model and the Membrane Model Without Cutoffs

Taking into account the effect of the generalized uncertainty principle on the generalized black hole entropy and tacking the thin film brick-wall model, we calculate the entropy of the quantum scalar field in generalized static black hole. The Bekenstein–Hawking entropies of all well-known static black holes are obtained. The entropy of 2-D membrane just at the event horizon of static black hole is also calculated, and the result of the black hole entropy proportional to the event horizon area can be obtained more easily and generally. This discussion shows that black hole entropy is just identified with the entropy of the quantum field on the event horizon. The difference from the original brick-wall model is that the present result is convergent without any cutoff and the little mass approximation is removed. With residue theorem, the integral difficulty in the calculation of black hole entropy is overcome.     

On the Inozemtsev Model

The BC _N Inozemtsev model is investigated. Finite-dimensional spaces which are invariant under the action of the Hamiltonian of the BC _N Inozemtsev model are introduced and it is shown that commuting operators of conserved quantities also preserve the finite-dimensional spaces. The BC ₂ Inozemtsev model is studied in more detail.     

Unquenching the Quark Model

The formalism for a new generation of unquenched quark models for baryons in which the effects of quark?Cantiquark pairs are taken into account in an explicit form via a microscopic, QCD-inspired, quark?Cantiquark creation mechanism, is presented. As an application the quark?Cantiquark contribution to the spin of the proton and the ??⁺ is discussed. Finally the strangeness radius of the ??⁺ in the closure limit is calculated.     

BSW方案中的模型相关性

在Baner,Stech,Wirbel(BSW)方案中,计算D和B介子弱衰变矩阵元使用了强子模型波函数.分析了几种不同的价夸克模型波函数,研究了它们的性质,正确地应用于计算D和B介子弱衰变过程的分支比.结果表明,在目前的实验误差范围内对于不同的模型波函数,相应地选取合适的a₁和a₂参量都能得到与大多数实验数据相符的预言.因此从理论上进一步探讨弱过程因子化,强子波函数和从实验上提高精度都将有助于研究BSW方案的模型相关性和可靠性.     

Geometric Property of the Faddeev Model

Two functions u and v are used in expressing the solutions of the Faddeev model. The geometric property of the surface S determined by u and v is discussed and the shape of the surface is demonstrated as an example. The Gaussian curvature of the surface S is negative.     

Dynamics of the Driven Jaynes-Cummings Model

We study the dynamical features of the Jaynes-Cummings model with the atomdriven by an external classical field in the case that the cavity field is initially in a Fock state.We find the dynamical variables by using dressed states in the bare atom representation. Weshow that the dynamical behavior of the cavity field can be strongly modified by the externalclassical field. We also find that the cavity field is super-Poissonian after some interaction timeif the external field is strong enough.     

The making of the Standard Model

The European Physical Journal C -     

Linked-Cluster Expansion of the Ising Model

The linked-cluster expansion technique for the high-temperature expansion of spin modes is reviewed. A new algorithm for the computation of three-point and higher Green's functions is presented. Series are computed for all components of two-point Green's functions for a generalized 3D Ising model, to 25th order on the bcc lattice and to 23rd order on the sc lattice. Series for zero-momentum four-, six-, and eight-point functions are computed to 21st, 19th, and 17th order respectively on the bcc lattice.     

Ising模型的并行计算

以Ising模型为例,介绍有关格点系统的Monte Carlo数值模拟并行算法的设计和编程,并给出在本组建造的PC集群式高性能并行计算系统上的测量结果.本文的结果对格点量子色动力学的大规模数值模拟研究有一定的参考价值     

Asymptotics of the Mean-Field Heisenberg Model

We consider the mean-field classical Heisenberg model and obtain detailed information about the total spin of the system by studying the model on a complete graph and sending the number of vertices to infinity. In particular, we obtain Cramér- and Sanov-type large deviations principles for the total spin and the empirical spin distribution and demonstrate a second-order phase transition in the Gibbs measures. We also study the asymptotics of the total spin throughout the phase transition using Stein’s method, proving central limit theorems in the sub- and supercritical phases and a nonnormal limit theorem at the critical temperature.     

Chiral Extension of the Quark Model

The chiral extension of the minimal standard model makes quarks with two chiralities present parallelly. Some interesting questions, such as the possibility of that the leptons are made of additional leptonic quarks and the proton decay are discussed.