Quantum transport through the system of parallel quantum dots with Majorana bound states

2014 ◽  
Vol 115 (8) ◽  
pp. 083706 ◽  
Author(s):  
Ning Wang ◽  
Shuhui Lv ◽  
Yuxian Li
Keyword(s):  
Quantum Dots ◽  
Quantum Transport ◽  
Bound States ◽  
Majorana Bound States

Andreev conductance through a triangular-shaped quantum dot structure hosting Majorana bound states

2020 ◽  
Vol 34 (36) ◽  
pp. 2050424
Author(s):  
Muhammad Aslam ◽  
Xiao Feng Cheng ◽  
Long Liu ◽  
Yu-Xian Li
Keyword(s):  
Quantum Dots ◽  
Bound States ◽  
Majorana Fermion ◽  
Majorana Bound States ◽  
Conductance Spectrum ◽  
Highly Sensitive ◽  
Closed Systems ◽  
Interdot Coupling ◽  
Resonant Processes

The Andreev conductance in [Formula: see text]-shaped quantum dots (QDs) system coupled with Majorana bound states (MBSs) is studied and resulting conductance spectrum displays resonant and non-resonant processes. These fluctuated resonances render features like insulating band, bonding (antibonding) in the low-bias region due to non-trivial role of interdot coupling [Formula: see text] and dots-MBSs coupling [Formula: see text]. On comparing QD levels [Formula: see text], and the coupling between the MBSs, coherent oscillating dynamics of an electron between the nanowire and the QDs can be portrayed. The insulating band is robust against [Formula: see text], but highly sensitive to [Formula: see text], which causes to increase (decrease) the conductance. We can claim that under finite bias voltage, transport can facilitate the researchers to expose the essential features of the Majorana fermion in such closed systems composed of MBSs.

Quantum transport of planar Josephson junctions with Majorana bound states

2020 ◽  
Vol 102 (8) ◽  
Author(s):  
B. H. Wu ◽  
S. A. Hassan ◽  
X. F. Xu ◽  
C. R. Wang ◽  
W. J. Gong ◽  
...  
Keyword(s):  
Quantum Transport ◽  
Josephson Junctions ◽  
Bound States ◽  
Majorana Bound States

scholarly journals Entangling spins in double quantum dots and Majorana bound states

2019 ◽  
Vol 99 (16) ◽  
Author(s):  
Marko J. Rančić ◽  
Silas Hoffman ◽  
Constantin Schrade ◽  
Jelena Klinovaja ◽  
Daniel Loss
Keyword(s):  
Quantum Dots ◽  
Bound States ◽  
Double Quantum ◽  
Majorana Bound States ◽  
Double Quantum Dots

The modulation of Majorana bound states comb through quantum dots

2020 ◽  
Vol 318 ◽  
pp. 113973
Author(s):  
Xiao-Feng Chen ◽  
Long Liu ◽  
Muhammad Aslam ◽  
Jing He ◽  
Juntao Song ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Bound States ◽  
Majorana Bound States

scholarly journals Many-particle Majorana bound states: Derivation and signatures in superconducting double quantum dots

2015 ◽  
Vol 252 (8) ◽  
pp. 1731-1742
Author(s):  
Thomas E. O'Brien ◽  
Anthony R. Wright ◽  
Menno Veldhorst
Keyword(s):  
Quantum Dots ◽  
Bound States ◽  
Double Quantum ◽  
Majorana Bound States ◽  
Double Quantum Dots

scholarly journals Topological isoconductance signatures in Majorana nanowires

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
L. S. Ricco ◽  
J. E. Sanches ◽  
Y. Marques ◽  
M. de Souza ◽  
M. S. Figueira ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Transport Properties ◽  
Spin Polarization ◽  
Bound States ◽  
Spin Asymmetry ◽  
Experimental Protocol ◽  
Zero Bias ◽  
Topological Superconductor ◽  
Hybrid Device ◽  
Majorana Bound States

AbstractWe consider transport properties of a hybrid device composed by a quantum dot placed between normal and superconducting reservoirs, and coupled to a Majorana nanowire: a topological superconducting segment hosting Majorana bound states (MBSs) at the opposite ends. It is demonstrated that if highly nonlocal and nonoverlapping MBSs are formed in the system, the zero-bias Andreev conductance through the dot exhibits characteristic isoconductance profiles with the shape depending on the spin asymmetry of the coupling between the dot and the topological superconductor. Otherwise, for overlapping MBSs with less degree of nonlocality, the conductance is insensitive to the spin polarization and the isoconductance signatures disappear. This allows to propose an alternative experimental protocol for probing the nonlocality of the MBSs in Majorana nanowires.

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