论文标题
Majoraana Corner对二维$ S $ - 波冷原子超级流体
Majorana corner pairs in a two-dimensional $s$-wave cold atomic superfluid
论文作者
论文摘要
我们提出了一种在二维冷原子光学晶格上与$ s $ - 波超富氟配对的二维冷原子光晶格上的Majoraana对准备的方法。与以前的提议操纵有效的狄拉克质量不同，我们的方案依赖于拐角处的自旋轨道耦合的符号翻转，可以通过调整入射拉曼激光器的角度来调整实验中的调整。发现Majorana角对位于两个逆时针方向的旋转轨道耦合强度相反的旋转轨道耦合强度之间的界面上，并且对某些对称性扰动的扰动非常强大。我们的工作为实施和操纵Majoraana配对提供了一种新的方法，并提供了现有的冷原子技术。
We propose a method to prepare Majorana pairs at the corners of imprinted defects on a two-dimensional cold atom optical lattice with $s$-wave superfluid pairing. Different from previous proposals that manipulate the effective Dirac masses, our scheme relies on the sign flip of the spin-orbit coupling at the corners, which can be tuned in experiments by adjusting the angle of incident Raman lasers. The Majorana corner pairs are found to be located at the interface between two regimes with opposite spin orbit coupling strengths in an anticlockwise direction and are robust against certain symmetry-persevered perturbations. Our work provides a new way for implementing and manipulating Majorana pairs with existing cold-atom techniques.
