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arXiv 1212.6000math-phhep-thmath.MP
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非线性保共形度Dirac方程

Nonlinear conformal-degree preserving Dirac equations

A. D. Alhaidari

摘要:

通过改变旋量作用量得到了D+1时空中的非线性Dirac方程,其Lagrange分量具有相同的共形度,自相互作用项的耦合参数是无量纲的。在1+1维,我们表明,这些要求的结果在“传统”的四次形式的非线性相互作用,并提出了各种耦合模式的一般方程。这些包括但不限于Thirring和Gross-Neveu模型。我们得到了自旋和赝自旋对称模式的特殊情况下的数值解。

英文摘要:

Nonlinear Dirac equations in D+1 space-time are obtained by variation of the spinor action whose Lagrangian components have the same conformal degree and the coupling parameter of the self-interaction term is dimensionless. In 1+1 dimension, we show that these requirements result in the "conventional" quartic form of the nonlinear interaction and present the general equation for various coupling modes. These include, but not limited to, the Thirring and Gross-Neveu models. We obtain a numerical solution for the special case of the spin and pseudo-spin symmetric modes..

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