Andreev bound states and Fabry-Perot interference in InAsSb nanowires

Andreev bound states (ABSs) are electronic analogues of Fabry-Perot interference. Signatures of Majorana zero modes have been demonstrated as merging of electron and hole ABSs as well as zero bias conductance peaks. We take the bottom-up route to study the ABSs and Fabry-Perot interference in InAsSb nanowires. The superconductor-InAsSb-superconductor device shows induced hard superconducting gap in the quantum dot regime. The g factor is extracted consistently from the evolution of both the excited states and the Kondo effect in magnetic field. Moreover, the device can be driven to the Fabry-Perot interference regime where ABSs are observed.