Probing the Majorana bound states in a hybrid nanowire double-quantum-dot system by scanning tunneling microscopy

Liu Jia¹, Li Ke-Man¹, Chi Feng², Fu Zhen-Guo^{3, †}, Hou Yue-Fei³, Wang Zhigang³, Zhang Ping^{3, ‡}

(a) and (b) Spectral functions A₁(ω) and A₂(ω) varying with ω for different values of coupling strength between the STM tip and QD-2 γ₂. (c) A₁(ω) and A₂(ω) as functions of levels detuning Δ for different overlap between MBSs ε_M. In all the calculations, symmetric coupling between STM and DQDs is considered by λ₁ = λ₂ = 0.1. In (a) and (b), the overlap between MBSs is chosen as ε_M = 0.06. Other parameters are the same as those in Fig. 2.