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arXiv 0910.5778hep-thgr-qchep-ph
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$κ$变形Dirac方程

$κ$-deformed Dirac Equation

E. Harikumar, M. Sivakumar, N. Srinivas

摘要:

我们在$κ$ -Minkowski时空中构造了一个Dirac方程,并分析了它的意义.这个$κ$变形狄拉克方程展开为一个幂级数,涉及相对于交换坐标和变形参数,$a$的衍生物。我们发现,$κ$ -变形打破了电荷共轭不变性,但保留宇称和时间反转。然后,我们研究了如何修改的氢原子光谱由于$κ$ -变形,应用微扰理论。利用这一点,我们得到的变形参数$a$,这是几个订单高于普朗克长度的界限。我们还指出,形变对谱的影响不同于Moyal形变和广义不确定原理。

英文摘要:

We construct a Dirac equation in $κ$-Minkowski spacetime and analyse its implications. This $κ$-deformed Dirac equation is expanded as a power series involving derivatives with respect to commutative coordinates and the deformation parameter, $a$. We show that the $κ$-deformation breaks the charge conjugation invariance but preserves parity and time reversal. We then study how the Hydrogen atom spectrum is modified due to the $κ$-deformation, applying perturbation theory. Using this, we obtain bounds on the deformation parameter $a$, which are few orders higher than the Planck length. We also show that the effects of deformation on the spectrum are distinct from that of Moyal deformation and generalized uncertainty principle.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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