论文标题
通过强场动力学检测Majoraana零模式
Detecting Majorana Zero Modes via Strong Field Dynamics
论文作者
论文摘要
我们提出了一项协议，以检测从其在强场中的谐波发射频谱中的一维$ p $ p $ wave超导体的拓扑相变。具体而言，我们确定了由于辐射边缘模式而引起的光谱特征，这些特征表征了拓扑阶段的光谱和状态密度，并且在微不足道阶段不存在。这些功能使我们能够定义一个从发射测量获得的顺序参数，该参数明确区分了两个阶段。局部探测为模式的局部和拓扑保护性质提供了洞察力。提出的结果表明，高谐波光谱可以用作检测Majorana零模式的新型全光学工具。
We propose a protocol to detect topological phase transitions of one-dimensional $p$-wave superconductors from their harmonic emission spectrum in strong fields. Specifically, we identify spectral features due to radiating edge modes, which characterize the spectrum and the density of states in the topological phase, and which are absent in the trivial phase. These features allow us to define an order parameter, obtained from emission measurements, that unambiguously differentiates between the two phases. Local probing provides insight to the localized and topologically protected nature of the modes. The presented results establish that high harmonic spectroscopy can be used as a novel all-optical tool for the detection of Majorana zero modes.
