Adiabatic quantum pumping of chiral Majorana fermions

Abstract

We investigate adiabatic quantum pumping of chiral Majorana states in a system composed of two Mach--Zehnder type interferometers coupled via a quantum point contact. The pumped current is generated by periodic modulation of the phases accumulated by traveling around each interferometer. Using scattering matrix formalism we show that the pumped current reveals a definite signature of the chiral nature of the Majorana states involved in transport in this geometry. Furthermore, by tuning the coupling between the two interferometers the pump can operate in a regime where finite pumped current and zero two-terminal conductance is expected.

References in corpus (15)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
• Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
• Introduction to topological superconductivity and Majorana fermions
• Superconductor-Nanowire Devices from Tunneling to the Multichannel Regime: Zero-Bias Oscillations and Magnetoconductance Crossover
• Anomalous modulation of a zero bias peak in a hybrid nanowire-superconductor device
• Electrically detected interferometry of Majorana fermions in a topological insulator
• Spin-resolved Andreev levels and parity crossings in hybrid superconductor-semiconductor nanostructures
• Non-Abelian quantum order in spin-orbit-coupled semiconductors: The search for topological Majorana particles in solid state systems
• Majorana Fermions in Semiconductor Nanowires: Fundamentals, Modeling, and Experiment
• Observing Majorana Bound States in p-wave Superconductors Using Noise Measurements in Tunneling Experiments
• Josephson supercurrent through the topological surface states of strained bulk HgTe
• Scattering theory of chiral Majorana fermion interferometry
• Topological pumping in class-D superconducting wires

Cited by in corpus (8)

• Annihilation of colliding Bogoliubov quasiparticles reveals their Majorana nature
• Quantum charge pumping through fractional Fermions in charge density modulated quantum wires and Rashba nanowires
• Chiral Majorana Interference as a Source of Quantum Entanglement
• Shot noise distinguishes Majorana fermions from vortices injected in the edge mode of a chiral p-wave superconductor
• Fano resonance in the nonadiabatic pumped shot noise of a time-dependent potential well
• Quantum charge pumping through Majorana bound states
• Quantum pumping with adiabatically modulated barriers in three-band pseudospin-1 Dirac-Weyl systems
• Laughlin charge pumping from interplay of chiral Dirac and chiral Majorana modes