论文标题
弯曲空间中量子动力学减少
Reduced quantum electrodynamics in curved space
论文作者
论文摘要
关于石墨烯物理学研究的一种有希望的结果是所谓的减少量子电动力学。在这项工作中，我们考虑了这种形式主义对弯曲空间的自然概括。我们采用本地动量空间表示。我们讨论病房身份的有效性，并详细研究单循环图。我们表明单环β函数为零。作为应用程序，我们通过考虑可以在本地纳入的曲率效应来计算石墨烯的单环光导电导率。此外，我们证明了这种影响如何有助于电导率。此外，而且非常出乎意料的是，我们的计算揭示了曲率诱导的有效化学电位在光导率中的贡献。
An approach that has been given promising results concerning investigations on the physics of graphene is the so-called reduced quantum electrodynamics. In this work we consider the natural generalization of this formalism to curved spaces. We employ the local momentum space representation. We discuss the validity of the Ward identity and study one-loop diagrams in detail. We show that the one-loop beta function is zero. As an application, we calculate the one-loop optical conductivity of graphene by taking into account curvature effects which can be incorporated locally. In addition, we demonstrate how such effects may contribute to the conductivity. Furthermore, and quite unexpectedly, our calculations unveil the emergence of a curvature-induced effective chemical potential contribution in the optical conductivity.
