Shot noise in resonant tunneling: Role of inelastic scattering

Krainov, I. V.; Дмитриев, А. П.; Аверкиев, Н. С.

doi:10.1103/physrevb.106.245421

Cited by 4 publications

(1 citation statement)

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“…The results presented in this work have been obtained assuming that interactions between the Majorana entangled setup and its environment are sufficiently weak. Under certain circumstances, however, such interactions may have a significant impact on the shot noise via corresponding inelastic processes [95] and thus represent a challenge for future models where MBSs are coupled to an external environment. Another possibility is to study the differential shot noise in nonequilibrium setups with poor man's MBSs [96,97] which may arise inside QDs when one fine-tunes parameters of such setups to locate their states as close as possible to their sweet spots.…”

Section: Discussionmentioning

confidence: 99%

Majorana differential shot noise and its universal thermoelectric crossover

Smirnov

2023

Phys. Rev. B

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Nonequilibrium states driven by both electric bias voltages V and temperature differences ∆T (or thermal voltages eVT ≡ kB∆T ) are unique probes of various systems. Whereas average currents I(V, VT ) are traditionally measured in majority of experiments, an essential part of nonequilibrium dynamics, stored particularly in fluctuations, remains largely unexplored. Here we focus on Majorana quantum dot devices, specifically on their differential shot noise ∂S > (V, VT )/∂V , and demonstrate that in contrast to the differential electric or thermoelectric conductance, ∂I(V, VT )/∂V or ∂I(V, VT )/∂VT , it reveals a crossover from thermoelectric to pure thermal nonequilibrium behavior. It is shown that this Majorana crossover in ∂S > (V, VT )/∂V is induced by an interplay of the electric and thermal driving, occurs at an energy scale determined by the Majorana tunneling amplitude, and exhibits a number of universal characteristics which may be accessed in solely noise experiments or in combination with measurements of average currents.

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Section: Discussionmentioning

confidence: 99%