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arXiv 2006.08207cond-mat.mes-hallhep-thmath-phmath.MPquant-ph
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Dirac费米子通过石墨烯静电光栅的超Klein隧穿

Super-Klein tunneling of Dirac fermions through electrostatic gratings in graphene

Alonso Contreras-Astorga, Francisco Correa, Vit Jakubsky

摘要:

我们利用Wick旋转的含时超对称性来构造静电光栅存在下的二维狄拉克费米子模型。我们发现,在特定的能量下,通过光栅出现全方位的完美传输。除了对进入的费米子透明之外,光栅还具有强烈的局域态。

英文摘要:

We use the Wick-rotated time-dependent supersymmetry to construct models of two-dimensional Dirac fermions in presence of an electrostatic grating. We show that there appears omnidirectional perfect transmission through the grating at specific energy. Additionally to being transparent for incoming fermions, the grating hosts strongly localized states.

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