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Majorana surface states of superfluid~3 He A and B phases in a slab

机译:平板中超流体〜3 He A和B相的马约拉纳表面状态

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摘要

Motivated by experiments on the superfluid~3 He confined in a thin slab, we design a concrete experimental setup for observing the Majorana surface states. We solve the quasiclassical Eilenberger equation, which is quantitatively reliable, to evaluate several quantities, such as local density of states (LDOS), mass current for the A phase, and spin current for the B phase. In connection with realistic slab samples, we consider the upper and lower surfaces and the side edges including the corners with several thicknesses. Consequently, the influence on the Majorana zero modes from the spatial variation of the / vector for the A phase in thick slabs and the energy splitting of the zero-energy quasiparticles for the B phase confined in thin slabs are demonstrated. The corner of slabs in the B phase is accompanied by the unique zero-energy LDOS of corner modes. On the basis of the quantitative calculation, we propose several feasible and verifiable experiments to check the existence of the Majorana surface states, such as the measurement of specific heat, edge current, and anisotropic spin susceptibility.
机译:受实验实验的启发,他将超流体〜3 He限制在一个薄板中,我们设计了一个具体的实验装置来观察马约拉纳邦的表面状态。我们解决了准经典的Eilenberger方程,该方程在定量上是可靠的,以评估多个量,例如局部状态密度(LDOS),A相的质量电流和B相的自旋电流。在结合实际的板坯样品时,我们考虑了上,下表面以及侧边缘(包括具有多个厚度的拐角)。因此,证明了厚板中A相的/矢量的空间变化以及薄板中B相的零能量准粒子的能量分裂对Majorana零模的影响。 B相中平板的拐角处带有独特的拐角模式零能量LDOS。在定量计算的基础上,我们提出了一些可行且可验证的实验来检查Majorana表面状态的存在,例如比热,边缘电流和各向异性自旋磁化率的测量。

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  • 来源
    《Physical review》 |2011年第9期|p.094510.1-094510.12|共12页
  • 作者单位

    Department of Physics, Okayama University, Okayama 700-8530, Japan;

    Department of Physics, Okayama University, Okayama 700-8530, Japan;

    Department of Physics, Okayama University, Okayama 700-8530, Japan;

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