论文标题

石墨烯中的一种新现象:伪造Zitterbewegung

A new phenomenon in graphene: The pseudospinorial Zitterbewegung

论文作者

Diago-Cisneros, L., Serna, Eduardo, Vargas, I. Rodríguez, Pérez-Álvarez, R.

论文摘要

我们预言了单层石墨烯(MLG)中的一种新的伪依赖性现象,该现象是数值模拟的\ emph {via}的创新者纳米 - 旋转设备。我们提出了一个新颖的理论程序,用于描述与经典的理论建模不同的狄拉克·费米子的动态。更重要的是,我们发现在每个子晶格状态的概率密度时间分布中摇摆的反相振荡的有吸引力的证据,我们称之为假启发性Zitterbewegung效应(PZBE)。 PZBE经历了由稳健的瞬态特征调制的,并具有飞秒的衰减时间。有趣的是,PZBE的几个功能变得可调,甚至可以完全消失在狄拉克点附近以及对称的假蛋白配置。据我们所知,我们已经观察到完美的Klein隧道和完美的反klein反向散射的证据,据我们所知,这是Q1D-MLG前所未有的。

We foretell a new pseudospin-dependent phenomenon in mono-layer graphene (MLG), which is numerically simulated \emph{via} an innovator nano-spintronic device. We proposed a novel theoretical procedure for describing the dynamics of Dirac fermions, departing from classic theoretical modelling. More importantly, we have found appealing evidences of wiggling anti-phase oscillations in the probability density time-distribution for each sub-lattice state, which we called pseudospinorial Zitterbewegung effect (PZBE). The PZBE undergoes modulated by a robust transient character, with decay time of femtoseconds. Interestingly, several features of the PZBE become tunable, even up to fully vanishing it at the vicinity of the Dirac points, as well as for a symmetric pseudospin configuration. We have observed evidences of perfect Klein tunneling and perfect anti-Klein backscattering in a single simulation, which is unprecedented for Q1D-MLG, as far as we know.

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