Probing the existence and dynamics of Majorana fermion via transport through a quantum dot

Abstract

We consider an experimentally feasible setup to demonstrate the existence and coherent dynamics of Majorana fermion. The transport setup consists of a quantum dot and a tunnel-coupled semiconductor nanowire which is anticipated to generate Majorana excitations under some conditions. For transport under finite bias voltage, we find that a subtraction of the source and drain currents can expose the essential feature of the Majorana fermion, including the zero-energy nature by gate-voltage modulating the dot level. Moreover, coherent oscillating dynamics of the Majorana fermion between the nanowire and the quantum dot is reflected in the shot noise via a spectral dip together with a pronounced zero-frequency noise enhancement effect. Important parameters, e.g. for the Majorana's mutual interaction and its coupling to the quantum dot, can be extracted out in experiment using the derived analytic results.

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Cited by in corpus (41)

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• Kondo and Majorana signatures near the singlet-doublet quantum phase transition
• Majorana-Kondo interplay in T-shaped double quantum dots
• Current noise cross correlation mediated by Majorana bound states
• Current transport properties and phase diagram of a Kitaev chain with long-range pairing
• Thermopower of three-terminal topological superconducting systems
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• Transport through a quantum dot coupled to two Majorana bound states
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• Interaction-Induced Renormalization of Tunneling into Multiple Majorana End States of a Topological Superconducting Wire
• Waiting time distribution revealing the internal spin dynamics in a double quantum dot
• Probing the Antisymmetric Fano Interference Assisted by a Majorana Fermion
• Majorana mode leaking into a spin-charge entangled double quantum dot
• Absence of supercurrent sign reversal in a topological junction with a quantum dot
• Revisit the non-locality of Majorana zero modes and teleportation: Bogoliubov-de Gennes equation based treatment
• Majorana dc Josephson current mediated by a quantum dot
• Quantum transport through a quantum dot side-coupled to a Majorana bound state pair in the presence of electron-phonon interaction
• Single-electron charge transfer into putative Majorana and trivial modes in individual vortices
• Probing Majorana bound states via counting statistics of a single electron transistor
• Isolating Majorana fermions with finite Kitaev nanowires and temperature: the universality of the zero-bias conductance
• Unveiling Majorana Quasiparticles by a Quantum Phase Transition: Proposal of a Current Switch
• Master equation approach for transport through Majorana zero modes
• Thermoelectric transport through a finite-$U$ quantum dot side-coupled to Majorana bound state
• Fano interference and a slight fluctuation of the Majorana hallmark
• SPT 2-Channel Kondo Model in the Structure of Normal Metal/Quantum Dot/DIII-class Topological Superconductor
• Phonon-Assisted Tunneling through Quantum Dot Systems Connected to Majorana Bound States
• Study on the tunneling spectroscopy of $N-pS$ junction and $N-hS$ junction
• Quantum transport theory of hybrid superconducting systems
• Effect of Interdots Electronic Repulsion in the Majorana Signature for a Double Dot Interferometer
• Phase-controlled quantum transport signatures in a quantum dot-Majorana hybrid ring system
• Distinguishing Majorana bound states from Andreev bound states through differential conductance and current noise spectrum
• Fano fingerprints of Majoranas in Kitaev dimers of superconducting adatoms
• Majorana Bound States hallmark in a quantum topological interferometer ring
• Currents and current correlations in a topological superconducting nanowire beam splitter
• Cross correlation mediated by distant Majorana zero modes with no overlap
• Majorana Conductances in Three-Terminal Transports
• Cross-correlation mediated by Majorana island with finite charging energy
• Electrical transport through a quantum dot side-coupled to a topological superconductor