Accessing the degree of Majorana nonlocality in a quantum dot-optical microcavity system

Abstract

We explore the tunneling transport properties of a quantum dot embedded in an optical microcavity and coupled to a semiconductor-superconductor one-dimensional nanowire (Majorana nanowire) hosting Majorana zero modes (MZMs) at their edges. Conductance profiles reveal that strong light-matter coupling can be employed to distinguish between the cases of highly nonlocal MZMs, overlapped MZMs and MZMs with less degree of nonlocal feature. Moreover, we show that it is possible to access the degree of Majorana nonlocality (topological quality factor) by changing the dot spectrum through photon-induced transitions tuned by an external pump applied to the microcavity.

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• Roadmap towards Majorana qubits and nonabelian physics in quantum dot-based minimal Kitaev chains
• Cavity-enhanced superconductivity via band engineering
• Reshaping the Jaynes-Cummings ladder with Majorana bound states
• From edge to bulk: Cavity induced displacement of topological non-local qubits
• Phonon-Assisted Tunneling through Quantum Dot Systems Connected to Majorana Bound States
• Signatures of Kondo-Majorana interplay in ac response
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• Schottky anomaly in a cavity-coupled double quantum well
• Distinguishing Majorana bound states from accidental zero-energy modes with a microwave cavity
• Emulating non-Hermitian dynamics in a finite non-dissipative quantum system