Giant shot noise from Majorana zero modes in topological trijunctions

Abstract

The clear-cut experimental identification of Majorana bound states in transport measurements still poses experimental challenges. We here show that the zero-energy Majorana state formed at a junction of three topological superconductor wires is directly responsible for giant shot noise amplitudes, in particular at low voltages and for small contact transparency. The only intrinsic noise limitation comes from the current-induced dephasing rate due to multiple Andreev reflection processes.

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Cited by in corpus (30)

• Weak measurement protocols for Majorana bound state identification
• Spatially dispersing Yu-Shiba-Rusinov states in the unconventional superconductor ${\mathrm{FeTe}}_{0.55}{\mathrm{Se}}_{0.45}$
• Boundary Green's function approach for spinful single-channel and multichannel Majorana nanowires
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• Majorana differential shot noise and its universal thermoelectric crossover
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• Dynamical leakage of Majorana mode into side-attached quantum dot
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• Parafermions in a multilegged geometry: Towards a scalable parafermionic network
• Quench dynamics of correlated quantum dot proximitized to superconducting lead
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• Statistical Majorana Bound State Spectroscopy
• Time-dependent Andreev reflection
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• Nonequilibrium finite frequency resonances in differential quantum noise driven by Majorana interference
• Statistical correlations of currents flowing via proximized quantum dot
• Signatures of Kondo-Majorana interplay in ac response
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• Multi-locational Majorana Zero Modes
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• Thermoelectric fluctuations of interfering Majorana bound states
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• Theory of Berry Singularity Markers: Diagnosing Topological Phase Transitions via Lock-In Tomography