dot is removed, there are no ABSs present in the system at energies far below the superconducting gap [@Huang:2018; @Aseev:2018].

![A semiconducting Rashba nanowire (gray) of length $L+L_s$ is partially covered by a thin $s$-wave superconductor (green) of thickness $d$ and length $L_s$. Part of the nanowire is left uncovered by the superconductor, forming a normal quantum dot region of length $L$. A uniform magnetic field $B$ is applied parallel to the nanowire axis. []{data-label="fig:Fig1"}](Fig1.pdf){width="\linewidth"}

The remainder of the paper is organized as follows. In Sec. \[analytical\], we present and solve a minimal analytical model describing the nanowire/superconductor hybrid system. In Sec. \[numerical\], we discuss a numerical simulation of the hybrid system while explicitly incorporating the superconducting layer. We show that all of the qualitative features of our analytical model are consistent with our numerical results. Our conclusions are given in Sec. \[conclusion\].

Analytical Calculation of Andreev Bound State Spectrum {#analytical}
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We consider a system shown in Fig. \[fig:Fig1\], where a Rashba nanowire is partially covered by a superconductor. A region of the nanowire of length $L$ is left uncovered and forms a normal quantum dot region with finite level spacing. To gain insight into the physical mechanism responsible 