期刊文献+
共找到12篇文章
< 1 >
每页显示 20 50 100
On a New Elementary Particle from the Disintegration of the Symplectic &#39t Hooft-Veltman-Wilson Fractal Spacetime 被引量:1
1
作者 Mohamed S. El Naschie 《World Journal of Nuclear Science and Technology》 2014年第4期216-221,共6页
't Hooft-Veltman Wilson dimensional regularization depends crucially upon Borel summability which entails strong links to the modern mathematical theory of transfinite sets and consequently to the fractal-Cantoria... 't Hooft-Veltman Wilson dimensional regularization depends crucially upon Borel summability which entails strong links to the modern mathematical theory of transfinite sets and consequently to the fractal-Cantorian spacetime proposal of Ord-Nottale-El Naschie. Starting from the above, we interpret the main step of the mathematical analysis in terms of elementary particles interaction. Thus 't Hooft-Veltman “perturbation” parameter which measures the deviation of the regulated space from the four dimensionality of spacetime is interpreted as an elementary particle with a topological mass charge equal to 0.18033989, i.e. double the magnitude of Hardy’s quantum entanglement. In turn, Hardy’s quantum entanglement which may be interpreted geometrically as a consequence of the zero set embedded in an empty set could also be interpreted as an exchange of pseudo elementary particles with a topological mass charge equal to Hardy’s entanglement where is the Hausdorff dimension of the zero set of the corresponding 't Hooft-Veltman spacetime. 展开更多
关键词 A New Dimensional Regularization PARTICLE 't hooft FRACTAL SPACETIME Hardy Quantum Entanglement E-INFINITY Cantorian SPACETIME DISINTEGRATION of the Vacuum
在线阅读 下载PDF
Cosmic Dark Energy from ‘t Hooft’s Dimensional Regularization and Witten’s Topological Quantum Field Pure Gravity 被引量:1
2
作者 Mohamed S. El Naschie 《Journal of Quantum Information Science》 2014年第2期83-91,共9页
We utilize two different theories to prove that cosmic dark energy density is the complimentary Legendre transformation of ordinary energy and vice versa as given by E(dark) = mc2 (21/22) and E(ordinary) = mc2/22. The... We utilize two different theories to prove that cosmic dark energy density is the complimentary Legendre transformation of ordinary energy and vice versa as given by E(dark) = mc2 (21/22) and E(ordinary) = mc2/22. The first theory used is based on G ‘t Hooft’s remarkably simple renormalization procedure in which a neat mathematical maneuver is introduced via the dimensionality of our four dimensional spacetime. Thus, ‘t Hooft used instead of D = 4 and then took at the end of an intricate and subtle computation the limit to obtain the result while avoiding various problems including the pole singularity at D = 4. Here and in contradistinction to the classical form of dimensional and renormalization we set and do not take the limit where and is the theoretically and experimentally well established Hardy’s generic quantum entanglement. At the end we see that the dark energy density is simply the ratio of and the smooth disentangled D = 4, i.e. (dark) = (4 -k)/4 = 3.8196011/4 = 0.9549150275. Consequently where we have ignored the fine structure details by rounding 21 + k to 21 and 22 + k to 22 in a manner not that much different from of the original form of dimensional regularization theory. The result is subsequently validated by another equally ingenious approach due mainly to E. Witten and his school of topological quantum field theory. We notice that in that theory the local degrees of freedom are zero. Therefore, we are dealing essentially with pure gravity where are the degrees of freedom and is the corresponding dimension. The results and the conclusion of the paper are summarized in Figure 1-3, Table 1 and Flow Chart 1. 展开更多
关键词 Accelerated COSMIC Expansion 't hooft-Veltman Dimensional Regularization Wilson RENORMALIZATION PURE GRAVITY Witten’s TOPOLOGICAL Quantum Field E-INFINITY Cantorian Spacetime
在线阅读 下载PDF
The ‘t Hooft Coupling and Baryon Mass Splitting in the Large-N_c Quark Model
3
作者 贾多杰 张甲申 《Chinese Physics Letters》 SCIE CAS CSCD 2015年第11期26-30,共5页
We study the 't Hooft coupling gt and the mass splitting of the ground-state baryons in terms of the large Noinspired quark model, by which the Hartree wavefunctions of light quarks are obtained. By fitting the spect... We study the 't Hooft coupling gt and the mass splitting of the ground-state baryons in terms of the large Noinspired quark model, by which the Hartree wavefunctions of light quarks are obtained. By fitting the spectra of decuplet and octet baryons, we obtain the 't Hooft coupling gt to be around 1.57. We generalize the scenario to the case of heavy baryons, such as Ac, gt values which does not deviate much from 1.57, as well as to the case of mesons with 9t far from that for baryons. The consequence is discussed. 展开更多
关键词 QCD The t hooft Coupling and Baryon Mass Splitting in the Large-N_c Quark Model
原文传递
’t Hooft黑洞量子态理论的一个推论
4
作者 白桦 闫沐霖 《高能物理与核物理》 EI CSCD 北大核心 2005年第12期1136-1141,共6页
从’t Hooft将黑洞作为高度简并的量子态的理论出发,考虑黑洞的量子效应,由于海森堡测不准原理,导出视界面上的时空坐标是非对易的.利用非对易场论的办法,研究了大的远离极端情况的Reissner-Nordstrom黑洞,成功的同时推导出黑洞的温度和... 从’t Hooft将黑洞作为高度简并的量子态的理论出发,考虑黑洞的量子效应,由于海森堡测不准原理,导出视界面上的时空坐标是非对易的.利用非对易场论的办法,研究了大的远离极端情况的Reissner-Nordstrom黑洞,成功的同时推导出黑洞的温度和熵.而且预言了场的动力学自由度的数目, 该数目支持了最小超对称标准模型. 展开更多
关键词 海森堡不确定原理 准定城(Quasilocal)能量 HAWKING辐射 黑洞熵 't hooft砖墙模型
原文传递
特霍夫特与韦尔特曼和粒子物理学理论 被引量:1
5
作者 郭振华 张晓娟 李宗红 《宝鸡文理学院学报(自然科学版)》 CAS 2000年第1期73-74,共2页
简要介绍了特霍夫特与韦尔特曼及其1999年诺贝尔物理学奖获奖项目研究情况
关键词 特霍夫特 韦尔特曼 诺贝尔物理学奖 粒子物理学
在线阅读 下载PDF
On the Stringy Ghosts Which We Call the Missing Dark Energy of the Cosmos 被引量:1
6
作者 Mohamed S. El Naschie 《Journal of Applied Mathematics and Physics》 2016年第6期979-987,共9页
Dark energy is explained using familiar notions and concepts used in quantum field theory, string theory and the exact mathematical theory of spacetime. The main result of the present work is first a new mathematical ... Dark energy is explained using familiar notions and concepts used in quantum field theory, string theory and the exact mathematical theory of spacetime. The main result of the present work is first a new mathematical definition of pre-quantum spacetime (QST) as a multiset made of infinitely many empty Cantor sets connected to pre-quantum wave empty set (QW) and the pre-quantum particle (QP) zero set via the cobordism equation &#8706(QW) = (QP)U(QST). Second, and in turn, this new path of reasoning is used to validate the quantum splitting of Einstein’s E = mc<sup>2</sup> into the sum of the ordinary energy E = mc<sup>2</sup>/22 of the quantum particle and the dark energy E = mc<sup>2</sup>(21/22) of the quantum wave, used predominantly to explain the observed accelerated expansion of the universe. 展开更多
关键词 Quantum Spacetime Quantum Ghost States Dark Energy Spacetime Cobordism E-Infinity Theory Fractal-Cantorian Spacetime Noncommutative Geometry ‘t hooft-Susskind Holography
在线阅读 下载PDF
一类四元数的矩阵表示
7
作者 姜云侠 于学刚 《通化师范学院学报》 2002年第5期46-48,共3页
以Hamilton四元数为基础,引入t’Hooft矩阵并作为Hamilton四元数的矩阵表示。列出四元数的乘法表,讨论其性质,给出与传统γ矩阵不同的表示形式。
关键词 Hamilton四元数 t'hooft矩阵 γ矩阵 表示形式 Dirac波动方程
在线阅读 下载PDF
A Resolution of the Black Hole Information Paradox via Transfinite Set Theory
8
作者 Mohamed S. El Naschie 《World Journal of Condensed Matter Physics》 2015年第4期249-260,共12页
A black hole is essentially a relativistic as well as a quantum object. Therefore the information paradox of black holes is a consequence of the clash between these two most fundamental theories of modern physics. It ... A black hole is essentially a relativistic as well as a quantum object. Therefore the information paradox of black holes is a consequence of the clash between these two most fundamental theories of modern physics. It is logical to conclude that a resolution of the problem requires some form of a quantum gravity theory. The present work proposes such a resolution using set theory and pointless spacetime geometry. 展开更多
关键词 Information PARADOX Black HOLES S. Hawking G. 't hooft L. Susskind Transfinite Set Theory NONCOMMUTATIVE Geometry Measure Concentration Dvoretzky’s Theorem DARK Energy CASIMIR Effect Nano CASIMIR Reactor
在线阅读 下载PDF
计算宇宙的终极砖块
9
作者 李新洲 《自然杂志》 1999年第6期359-361,362,共4页
我们正面临世纪之交。20世纪的物理学取得了非凡的进步,也正是这些进步才使得20世纪具备了非凡的特征。与此同时,物理理论的巨大成功使得许多人认为它将面临终结,不少有数理天赋的青年不再将理论物理作为一项首选的事业。正当此时,理论... 我们正面临世纪之交。20世纪的物理学取得了非凡的进步,也正是这些进步才使得20世纪具备了非凡的特征。与此同时,物理理论的巨大成功使得许多人认为它将面临终结,不少有数理天赋的青年不再将理论物理作为一项首选的事业。正当此时,理论物理学家特霍夫特(Gerard’t Hooft)和韦尔特曼(Martinus Veltman)共同获得了1999年度诺贝尔奖,这对于重振理论物理雄风将起到重要作用。 展开更多
关键词 特霍夫特 韦尔特曼 基本力 重正化计算 物理学家
在线阅读 下载PDF
Einstein’s General Relativity and Pure Gravity in a Cosserat and De Sitter-Witten Spacetime Setting as the Explanation of Dark Energy and Cosmic Accelerated Expansion
10
作者 Mohamed S. El Naschie 《International Journal of Astronomy and Astrophysics》 2014年第2期332-339,共8页
Ordinary energy and dark energy density are determined using a Cosserat-Cartan and killing-Yano reinterpretation of Einstein’s special and general relativity. Thus starting from a maximally symmetric space with 528 k... Ordinary energy and dark energy density are determined using a Cosserat-Cartan and killing-Yano reinterpretation of Einstein’s special and general relativity. Thus starting from a maximally symmetric space with 528 killing vector fields corresponding to Witten’s five Branes model in eleven dimensional M-theory we reason that 504 of the 528 are essentially the components of the relevant killing-Yano tensor. In turn this tensor is related to hidden symmetries and torsional coupled stresses of the Cosserat micro-polar space as well as the Einstein-Cartan connection. Proceeding in this way the dark energy density is found to be that of Einstein’s maximal energy mc2 where m is the mass and c is the speed of light multiplied with a Lorentz factor equal to the ratio of the 504 killing-Yano tensor and the 528 states maximally symmetric space. Thus we have E (dark) = mc2 (504/528) = mc2 (21/22) which is about 95.5% of the total maximal energy density in astounding agreement with COBE, WMAP and Planck cosmological measurements as well as the type 1a supernova analysis. Finally theory and results are validated via a related theory based on the degrees of freedom of pure gravity, the theory of nonlocal elasticity as well as ‘t Hooft-Veltman renormalization method. 展开更多
关键词 General RELATIVITY COSSERAT Micro-Polar Space Dark Energy Teleparellelism Witten’s M-THEORY De Sitter SPACETIME Killing-Yano Tensor Einstein-Cartan RELATIVITY PURE GRAVITY Kaluza-Klein Theory Nonlocal Elasticity 't hooft-Veltman Renormalization
在线阅读 下载PDF
船舶在浅水中航行下沉量的计算方法 被引量:27
11
作者 洪碧光 于洋 《大连海事大学学报》 CAS CSCD 北大核心 2003年第2期1-5,共5页
针对大型船舶在浅水域航行时的安全问题,讨论了影响富余水深的因素之一,即船体下沉量的计算问题.收集了多年来国际上应用比较广泛的多种计算方法,用不同的代表船型对各种船速下的浅水航行下沉量进行了计算,并对各种计算方法的适用范围... 针对大型船舶在浅水域航行时的安全问题,讨论了影响富余水深的因素之一,即船体下沉量的计算问题.收集了多年来国际上应用比较广泛的多种计算方法,用不同的代表船型对各种船速下的浅水航行下沉量进行了计算,并对各种计算方法的适用范围及其误差进行了分析.计算可知:在船速相同时,同一种船型,用不同的公式进行计算的差别是很大的,特别是在船速大于8kn时,其差别随着船速的提高而越来越大.在分析的基础上,对于开敞的浅水水域,建议采用既安全又合理的Huuska(1976)计算公式. 展开更多
关键词 船舶 浅水航行 下沉量 算法 hooft公式 富余水深 Huuska公式 Eryuzlu公式 Barrass公式 Romisch公式 Millward公式 Ankudinov公式 船型
原文传递
无序参量和对偶性
12
作者 周光召 冼鼎昌 《科学通报》 1980年第6期252-255,共4页
在研究夸克禁闭的问题时,′t Hooft引进了一个与闭合曲线C′有关的无序参量B(C′),它和非亚伯尔规范场Â_(μ)的Wilson闭圈算子A(C)之间满足代数关系B(C′)A(C)=A(C)O(C′)z(1)对SU(N)群,z为群中心Z(N)的元素。
关键词 夸克禁闭 无序参量 t hooft 对偶性
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部