Theory of Coulomb blockaded transport in realistic Majorana nanowires

@article{Lai2021TheoryOC,
  title={Theory of Coulomb blockaded transport in realistic Majorana nanowires},
  author={Yi-Hua Lai and Sankar Das Sarma and Jay Deep Sau},
  journal={Physical Review B},
  year={2021}
}
Coulomb blockaded transport of topological superconducting nanowires provides an opportunity to probe the localization of states at both ends of the system in a two-terminal geometry. In addition, it provides a way for checking for sub-gap states away from the leads. At the same time, Coulomb blockade transport is difficult to analyze because of the interacting nature of the problem arising from the nonperturbative Coulomb interaction inherent in the phenomenon. Here we show that the Coulomb… 
2 Citations
Electronic transport in double-nanowire superconducting islands with multiple terminals
Alexandros Vekris, 2 Juan Carlos Estrada Saldaña, Thomas Kanne, Thor Hvid-Olsen, Mikelis Marnauza, Dags Olsteins, Matteo M. Wauters, 3 Michele Burrello, 3 Jesper Nyg̊ard, and Kasper Grove-Rasmussen
Estimating disorder and its adverse effects in semiconductor Majorana nanowires
We use the available transport measurements in the literature to develop a dataset for the likely amount of disorder in semiconductor (InAs and InSb) materials which are used in fabricating the

References

SHOWING 1-10 OF 17 REFERENCES
Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
We report on the observation of excitation of Majorana fermions in a Nb-InSb nanowire quantum dot-Nb hybrid system. The InSb nanowire quantum dot is formed between the two Nb contacts by weak
Introduction to Mesoscopic Electron Transport
In this introductory chapter several basic concepts, relevant for mesoscopic electron transport, will be described. The aim is to provide a basis for several of the following Chapters of this volume.
Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
Majorana fermions are the only fermionic particles that are expected to be their own antiparticles. While elementary particles of the Majorana type were not identified yet, quasi-particles with
Ballistic Majorana nanowire devices
Majorana modes are zero-energy excitations of a topological superconductor that exhibit non-Abelian statistics1–3. Following proposals for their detection in a semiconductor nanowire coupled to an
Exponential protection of zero modes in Majorana islands
TLDR
The results help to explain the trivial-to-topological transition in finite systems and to quantify the scaling of topological protection with end-mode separation.
Parity transitions in the superconducting ground state of hybrid InSb–Al Coulomb islands
TLDR
Three distinct types of fermion parity GS transitions as a function of magnetic field and gate voltages in a Coulomb-blockaded InSb–Al island are reported.
Majorana fermions in ferromagnetic chains on the surface of bulk spin-orbit coupled s-wave superconductors
TLDR
It is shown that a ferromagnetic chain deposited on the surface of a spin-orbit coupled s-wave superconductor generically supports zero-energy topological MF excitations near the two ends of the chain with minimal fine-tuning.
Coulomb oscillations of the conductance in a laterally confined heterostructure
The authors predict a new type of conductance oscillations in a GaAs heterostructure with a proposed strip-like gate with a hole. Such a gate defines a conducting dot (under the hole) in an otherwise
Majorana zero modes in superconductor–semiconductor heterostructures
Realizing topological superconductivity and Majorana zero modes in the laboratory is a major goal in condensed-matter physics. In this Review, we survey the current status of this rapidly developing
Epitaxy of semiconductor-superconductor nanowires.
TLDR
The grain growth kinetics of the metal phase is formulated in general terms of continuum parameters and bicrystal symmetries and seems to solve the soft-gap problem in superconducting hybrid structures.
...
1
2
...