Pioneer 10 and 11 Spacecraft Anomalous Acceleration in the light of the Nonsymmetric Kaluza–Klein (Jordan–Thiry) Theory

The Nonsymmetric Kaluza–Klein (Jordan–Thiry) Theory leads to a model of a modified acceleration that can fit an anomalous acceleration experienced by the Pioneer 10 and 11 spacecraft. The future positions of those spacecrafts are predicted using distorted hyperbolic orbit. A connection between an anomalous acceleration and a Hubble constant is solved in the theory together with a relation to a cosmological constant in CDMΛ model. In the paper we consider an exact solution of a point mass motion in the Solar System under an influence of an anomalous acceleration. We find two types of orbits: periodic and chaotic. Both orbits are bounded. This means there is no possibility to escape from the Solar System. Some possibilities to avoid this conclusion are considered. We resolve also a coincidence between an anomalous acceleration and the cosmological constant using a paradigm of modern cosmology. Relativistic effects and a cosmological drifting of a gravitational constant are considered. The model of an anomalous acceleration does not cause any contradiction with Solar System observations. We give a full statistical analysis of the model. We consider also a full formalism of the Nonsymmetric Jordan–Thiry Theory for the problem and present a relativistic model of an anomalous acceleration. We consider the model for General Relativity approximation, i.e. (). In this model there are no contradictions with General Relativity tests in the Solar System. Pioneer 10/11 spacecrafts will come back in 10⁶ years (a time scale of our periodic solutions is 10⁶ years). Moreover, almost relativistic or relativistic spacecrafts can escape from the Solar System. We consider also a model of a relativistic acceleration which is more complicated, with taken into account.     

A note on regularization methods in Kaluza–Klein theories

We comment on the presence of power-like divergences in Kaluza–Klein theories with supersymmetry breaking à la Scherk–Schwarz. By introducing a SUSY preserving regulator, we show that, in the context of a recently model proposed by Barbieri, Hall and Nomura, the Higgs mass is finite and unambiguously defined. The same result applies to similar models.     

Unified models at intermediate energy scales and Kaluza–Klein excitations

We discuss the possibility of intermediate gauge coupling unification in unified models of string origin. Useful relations of the β-function coefficients are derived, which ensure unification of couplings when Kaluza–Klein excitations are included above the compactification scale. We apply this procedure to two models with SU(3)×SU(3)_L×SU(3)_R and SU(4)×O(4) gauge symmetries.     

Quasinormal modes in the background of charged Kaluza–Klein black hole with squashed horizons

We study the scalar perturbation in the background of the charged Kaluza–Klein black holes with squashed horizons. We find that the position of infinite discontinuities of the heat capacities can be reflected in quasinormal spectrum. This shows the possible non-trivial relation between the thermodynamical and dynamical properties of black holes.     

Conformally flat Kaluza–Klein spaces, pseudo-/para-complex space forms and generalized gravitational kinks

The equations describing the Kaluza–Klein reduction of conformally flat spaces are investigated in arbitrary dimensions. Special classes of solution related to pseudo-Kähler and para-Kähler structures are constructed and classified according to spacetime dimension, signature and gauge field rank. Remarkably, rank two solutions include gravitational kinks together with their centripetal and centrifugal deformations.     

A Solution of a Nonsymmetric Theory of Gravitation

The field equations of a proposed nonsymmetrictheory of gravitation are solved exactly for the case ofa static and spherically symmetric point singularity.The physical consequences of the solution are analyzed for the precession of perihelia,deflection of light, red-shift and radar-echodelay.     

Geodesic and path motion in the Nonsymmetric Gravitational Theory

We study the problem of test-particle motion in the Nonsymmetric Gravitational Theory (ngt) assuming the four-velocity of the particle is parallel-transported along the trajectory. The predicted motion is studied on a static, spherically symmetric background field, with particular attention paid to radial and circular motions. Interestingly, it is found that the proper time taken to travel between any two non-zero radial positions is finite. It is also found that circular orbits can be supported at lower radii than in General Relativity for certain forms of motion. We present three interactions which could be used as alternate methods for coupling a test-particle to the antisymmetric components of thengt field. One of these takes the form of a Yukawa force in the weak-field limit of a static, spherically symmetric field, which could lead to interesting phenomenology.     

现代物理学研究中的一个新的前沿——坡密子是一个雷其化的张量胶子球(英文)

提出了坡密子就是质量～2 .2 Ge V、量子数为 IGJPC=0 + 2 + +的张量胶子球的雷其轨迹.高能质子 -质子弹性散射微分截面的研究表明 ,这个猜想与张量胶子球的实验材料完全一致的. We propose that the Pomeron is a Regge trajectory of tensor glueballs with the lightest member having a mass in the 2.2 GeV region and the quantum numbers I G J PC = 0 + 2 ++ . By using the well-established high-energy proton-proton elastic scattering differential cross sections, we show that our conjecture is fully consistent with the observed ξ production data.     

The Problem of Interpretation of Modern Physics

Since the advent of Modern Physics in 1905, we observe an increasing activity of “interpreting” the new theories. We mention here the theories of Special Relativity, General Relativity and Quantum Mechanics. However, similar activities for the theories of Classical Physics were not known. We ask for the reasons for the different ways to treat classical physics and modern physics. The answer, that we provide here is very surprising: the different treatments are based on a fundamental misunderstanding of the theories of classical physics.     

物理学:从经典到现代的演变之路

物理学是建立在大量实验事实的基础上的.实验的特色在于精密而定量的测量,且多半在可控制和可重复的条件下进行.只有在取得大量经验规律后,才能建立融会贯通的物理体系(一般均采用数学形式表达),并要求针对特定问题推出具体预言,再通过进一步实验加以甄别,即证实或证伪.当然,随着研究范围的扩大、研究程度的深化和测量精度的提高,又会发现有些现象与原有理论相悖,导致对原有理论的修正,在某些情况下甚至推翻原有理论,建立新理论.近来由于计算技术的飞速发展,介乎实验和理论推导之间的计算模拟也发挥了愈来愈重要的作用.     

Fundamental Structures in Physics: A Categorical Approach

As already remarked by Eilenberg and MacLane in their seminal paper on categorytheory, preordered classes can be considered as thin categories, that is, categoriesfor which each Hom-set contains at most one element. In this paper I brieflydescribe how this identification not only allows much of the theory of orderstructures to be reformulated in categorical terms, but also permits the applicationof general categorical techniques to specific order-theoretic problems.     

从建模角度探究物理问题编制

1 建模过程 关于问题编制的经验总结性的文章,笔者拜读过不少,但心中总有一种缺憾--未能以经验为对象加以深化和提升而给青年教师的业务进修给予方法论高度的指导.笔者以2002年普通高校招生全国统一考试理综试题中物理部分(以下简称理综物理)为材料,从物理科学方法论的高度建模的角度探究物理问题编制.     

Spontaneous Symmetry Breaking and Higgs' Mechanism in the Nonsymmetric Jordan-Thiry Theory

In the paper we construct the nonsymmetric Jordan-Thiry theory unifying Moffat's theory of gravitation, the Yang-Mills' field, the Higgs' fields and scalar forces in a geometric manner. We discuss spontaneous symmetry breaking, the Higgs' mechanism and mass generation in the theory. The scalar field Ψ (as in classical Jordan-Thiry theory) is connected to the effective gravitational constant. This field is massive and has Yukawa-type behavior. We discuss the relation between R₊ invariance and U(1)_F from G. U. T. within Einstein λ-transformation, and fermion number conservation. In this way we connect W _μ-field from nonsymmetric theory of gravitation with a gauge field A from G. U. T. We derive the equation of motion for a test particle from conservation laws in the hydrodynamic limit.     

现代课程与教学论核心思想在大学物理实验教学中的应用

基于现代课程与教学论主要流派的核心思想,联系国内外大学物理实验教学的实际,应用人本主义和结构主义课程与教学观有针对性地指导大学物理实验教学实践,提出了有利于培养学生科研能力和创新能力的教学新模式,克服了传统物理实验教学模式千人一面的弊端,顺应了社会对培养高素质、创新型人才的需求。     

近代物理学与产业革命--"从产业革命到信息社会"之一

技术革命指的是正在成长中的新技术传统（技术的科学基础、技术的结构、技术活动的方式及方法、技术的规范及标准等）取代旧技术传统的活动或过程．这种技术传统的转换，意味着人类实践手段或方式的飞跃．