# Quantized Majorana conductance

@article{Zhang2018QuantizedMC, title={Quantized Majorana conductance}, author={Hao Zhang and Chun-Xiao Liu and Sa{\vs}a Gazibegovi{\'c} and Di Xu and John A. Logan and Guanzhong Wang and Nick van Loo and Jouri D. S. Bommer and Michiel W. A. Moor and Diana Car and Roy Op het Veld and P. J. van Veldhoven and Sebastian Koelling and Marcel A. Verheijen and Mihir Pendharkar and Daniel J. Pennachio and Borzoyeh Shojaei and Joon Sue Lee and Chris J. Palmstr{\o}m and Erik P.A.M. Bakkers and Sankar Das Sarma and Leo P Kouwenhoven}, journal={Nature}, year={2018}, volume={556}, pages={74-79} }

Majorana zero-modes—a type of localized quasiparticle—hold great promise for topological quantum computing. Tunnelling spectroscopy in electrical transport is the primary tool for identifying the presence of Majorana zero-modes, for instance as a zero-bias peak in differential conductance. The height of the Majorana zero-bias peak is predicted to be quantized at the universal conductance value of 2e2/h at zero temperature (where e is the charge of an electron and h is the Planck constant), as a…

## 460 Citations

### Zero-bias conductance peak in Dirac semimetal-superconductor devices

- Physics
- 2019

Majorana zero modes (MZMs), fundamental building blocks for realizing topological quantum computers, can appear at the interface between a superconductor and a topological material. One of the…

### Quantized and unquantized zero-bias tunneling conductance peaks in Majorana nanowires: Conductance below and above 2e2/h

- PhysicsPhysical Review B
- 2021

Majorana zero modes can appear at the wire ends of a one-dimensional topological superconductor and manifest themselves as a quantized zero-bias conductance peak in the tunneling spectroscopy of…

### Quantized zero-bias conductance plateau in semiconductor-superconductor heterostructures without topological Majorana zero modes

- PhysicsPhysical Review B
- 2018

We show that partially separated Andreev bound states (ps-ABSs), comprised of pairs of overlapping Majorana bound states (MBSs) emerging in quantum dot-semiconductor-superconductor heterostructures,…

### Quality factor for zero-bias conductance peaks in Majorana nanowire

- PhysicsPhysical Review B
- 2022

Despite recent experimental progress towards observing large zero-bias conductance peaks (ZBCPs) as signatures of Majorana modes, confusion remains about whether Majorana modes have been observed.…

### Reproducing topological properties with quasi-Majorana states

- PhysicsSciPost Physics
- 2019

Andreev bound states in hybrid superconductor-semiconductor devices
can have near-zero energy in the topologically trivial regime as long as
the confinement potential is sufficiently smooth. These…

### Ballistic Majorana nanowire devices

- PhysicsNature Nanotechnology
- 2018

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…

### Concomitant opening of a topological bulk-gap with an emerging Majorana edge-state

- Physics
- 2018

Majorana 'zero-modes' are expected to be immune to decoherence. The primary method for their characterization in a 1D topological superconductor, is measuring the tunneling current into the edge of…

### Quasiparticle gaps in multiprobe Majorana nanowires

- PhysicsPhysical Review B
- 2018

We theoretically study a spin-orbit-coupled nanowire proximitized by a superconductor in the presence of an externally applied Zeeman field ("Majorana nanowire") with zero-energy Majorana bound…

### Probing Majorana zero modes by measuring transport through an interacting magnetic impurity

- Physics
- 2021

### Nearly quantized conductance plateau of vortex zero mode in an iron-based superconductor

- PhysicsScience
- 2020

Observations of conductance plateaus as a function of tunnel coupling for zero-energy vortex bound states with values close to or even reaching the 2e2/h quantum conductance are reported.

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- PhysicsPhysical review letters
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Results are consistent with theory, including a peak conductance that is proportional to tunnel coupling, saturates at 2e^{2}/h, decreases as expected with field-dependent gap, and collapses onto a simple scaling function in the dimensionless ratio of temperature and tunnel coupling.