Re-assessing special aspects of Dirac fermions in presence of Lorentz-symmetry violation

被引：1

作者：

Melo, Joao Paulo S. ^{[1
]}

Helayel-Neto, Jose A. ^{[1
]}

机构：

[1] Ctr Brasileiro Pesquisas Fis, Rua Dr Xavier Sigaud 150, BR-22290180 Rio De Janeiro, RJ, Brazil

来源：

ANNALS OF PHYSICS | 2024年 / 470卷

关键词：

Lorentz symmetry violation; Modified Dirac equation; Modified dispersion relation; Klein paradox; Zitterbewegung; Compton scattering; LIGHT SPEED VARIATION; CPT VIOLATION; SPECIAL RELATIVITY; QUANTUM; TESTS; ZITTERBEWEGUNG; DISPERSION; NEUTRINOS; MODEL;

D O I：

10.1016/j.aop.2024.169790

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper focuses on additional inspections concerning the fermionic sector of the Standard Model Extension (SME). In this context, our main effort in this contribution is to investigate effects of Lorentz-symmetry violation (LSV) on the Klein Paradox, the Zitterbewegung and its phenomenology in connection to Condensed Matter Physics, Atomic Physics, and Astrophysics. Finally, we discuss a particular realization of LSV in the Dirac equation, considering an asymmetry between space and time due to a scale factor present in the linear momentum of the fermion, but which does not touch its time derivative. We go further and extend the implications of this asymmetry in the situation the scale factor becomes space-time dependent to compute its influence on the kinematics of the Compton effect with the extended dispersion relation for the fermion that scatters the photon.

引用

页数：15

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