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Giant shot noise from Majorana zero modes in topological trijunctions

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arxiv 1809.10527 v2 pith:6WFAJ47M submitted 2018-09-27 cond-mat.supr-con cond-mat.mes-hall

Giant shot noise from Majorana zero modes in topological trijunctions

classification cond-mat.supr-con cond-mat.mes-hall
keywords majorananoiseexperimentalgiantshottopologicalamplitudesandreev
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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