Manipulating Andreev and Majorana Bound States with microwaves

Abstract

We study the interplay between Andreev (Majorana) bound states that form at the boundary of a (topological) superconductor and a train of microwave pulses. We find that the extra dynamical phase coming from the pulses can shift the phase of the Andreev reflection, resulting in the appear- ance of dynamical Andreev states. As an application we study the presence of the zero bias peak in the differential conductance of a normal-topological superconductor junction - the simplest, yet somehow ambiguous, experimental signature for Majorana states. Adding microwave radiation to the measuring electrodes provides an unambiguous probe of the Andreev nature of the zero bias peak.

4 pages, 4 figures

References in corpus (14)

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Cited by in corpus (8)

• Tkwant: a software package for time-dependent quantum transport
• A linear-scaling source-sink algorithm for simulating time-resolved quantum transport and superconductivity
• Progress in superconductor-semiconductor topological Josephson junctions
• Towards Realistic Time-Resolved Simulations of Quantum Devices
• Role of the quasi-particles in an electric circuit with Josephson junctions
• Electron correlation effects in superconducting nanowires in and out of equilibrium
• Interacting electrons in a flat-band system within the Generalized Kadanoff-Baym Ansatz
• Propagation of ultrashort voltage pulses through a small quantum dot