Dimensional Reduction

Dimensional Reduction
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DOI:
10.1142/s0217732399000134
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发表时间:
1998-07
期刊:
影响因子:
12.8
通讯作者:
C. Manogue;T. Dray
C. Manogue;T. Dray
中科院分区:
经济学2区
文献类型:
--
作者:
C. Manogue;T. Dray

文献摘要

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使用八元数形式主义,我们引入了一个新的机制,减少10个时空维度4没有紧化。将这种机制应用于自由的、10维的、无质量的(动量空间)狄拉克方程,会得到一个由3代粒子组成的粒子谱。每一代包含1个有质量的自旋1/2粒子,有2个自旋状态,1个无质量的自旋1/2粒子,只有1个螺旋状态,以及它们的反粒子-正好是一代轻子。还有一个无质量的自旋为1/2的粒子/反粒子对,具有相反的螺旋度,没有生成结构。最后,我们讨论了这种方法的一些进一步的后果,包括在弯曲时空背景下使用形式主义时可能产生的后果,以及对时空本身性质的影响。
Using an octonionic formalism, we introduce a new mechanism for reducing 10 spacetime dimensions to 4 without compactification. Applying this mechanism to the free, 10-dimensional, massless (momentum space) Dirac equation results in a particle spectrum consisting of exactly 3 generations. Each generation contains 1 massive spin-1/2 particle with 2 spin states, 1 massless spin-1/2 particle with only 1 helicity state, and their antiparticles --- precisely one generation of leptons. There is also a single massless spin-1/2 particle/antiparticle pair with the opposite helicity and no generation structure. We conclude with a discussion of some further consequences of this approach, including those which could arise when using the formalism on a curved spacetime background, as well as the implications for the nature of spacetime itself.