scholarly journals Observation of a robust zero-energy bound state in iron-based superconductor Fe(Te,Se)

2015 ◽  
Vol 11 (7) ◽  
pp. 543-546 ◽  
Author(s):  
J-X. Yin ◽  
Zheng Wu ◽  
J-H. Wang ◽  
Z-Y. Ye ◽  
Jing Gong ◽  
...  
Keyword(s):  
Bound State ◽  
Zero Energy ◽  
Energy Bound ◽  
Iron Based

scholarly journals Spectral singularities and zero energy bound states

2011 ◽  
Vol 63 (3) ◽  
pp. 369-373 ◽  
Author(s):  
W. D. Heiss ◽  
R. G. Nazmitdinov
Keyword(s):  
Bound States ◽  
Zero Energy ◽  
Spectral Singularities ◽  
Energy Bound

scholarly journals Scalable Majorana vortex modes in iron-based superconductors

2020 ◽  
Vol 6 (9) ◽  
pp. eaay0443 ◽  
Author(s):  
Ching-Kai Chiu ◽  
T. Machida ◽  
Yingyi Huang ◽  
T. Hanaguri ◽  
Fu-Chun Zhang
Keyword(s):  
Tight Binding ◽  
Three Dimensional ◽  
Scanning Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Zero Energy ◽  
Binding Model ◽  
Zero Bias ◽  
Iron Based Superconductors ◽  
Iron Based ◽  
Important Indication

The iron-based superconductor FeTexSe1−x is one of the material candidates hosting Majorana vortex modes residing in the vortex cores. It has been observed by recent scanning tunneling spectroscopy measurement that the fraction of vortex cores having zero-bias peaks decreases with increasing magnetic field on the surface of FeTexSe1−x. The hybridization of two Majorana vortex modes cannot simply explain this phenomenon. We construct a three-dimensional tight-binding model simulating the physics of over a hundred Majorana vortex modes in FeTexSe1−x. Our simulation shows that the Majorana hybridization and disordered vortex distribution can explain the decreasing fraction of the zero-bias peaks observed in the experiment; the statistics of the energy peaks off zero energy in our Majorana simulation are in agreement with the experiment. These agreements lead to an important indication of scalable Majorana vortex modes in FeTexSe1−x. Thus, FeTexSe1−x can be one promising platform having scalable Majorana qubits for quantum computing.

Exact zero energy bound states of a model potential for quantum dots

2000 ◽  
Vol 276 (5-6) ◽  
pp. 240-244 ◽  
Author(s):  
Sergio De Filippo ◽  
Mario Salerno ◽  
Victor Z. Enolskii
Keyword(s):  
Quantum Dots ◽  
Bound States ◽  
Model Potential ◽  
Zero Energy ◽  
Energy Bound
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