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arXiv 2012.03921gr-qc
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克莱因相对论的含义

Implications of Kleinian relativity

F. A. P. Alves, A. B. Barreto, F. Moraes

摘要:

受超材料的启发,我们提出了一个协变机制的粒子在克莱因时空,并显示它的一些效果,如时间收缩和长度膨胀。给出了点粒子相对论动量和能量的新表达式。为了说明新的力学,我们描述了均匀牛顿引力场下的粒子运动。我们还重新审视了克莱因时空中的自由自旋半粒子问题,讨论了一些量子意义,如外尔费米子色散关系的约束,并适应超材料模拟系统克莱因时空。

英文摘要:

Inspired in metamaterials, we present a covariant mechanics for particles in Kleinian spacetime and show some of its effects, such as time contraction and length dilatation. We present the new expressions for relativistic momentum and energy for a point-like particle. To illustrate the new mechanics, we describe the particle motion under a uniform Newtonian gravitational field. We also revisit the free spin-half particle problem in Kleinian spacetime, discuss some quantum implications, like the constraint on the dispersion relation for Weyl fermions, and adapt a metamaterial analog system to Klein spacetime.

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