scholarly journals Dynamic current susceptibility as a probe of Majorana bound states in nanowire-based Josephson junctions

2018 ◽  
Vol 97 (4) ◽  
Author(s):  
Mircea Trif ◽  
Olesia Dmytruk ◽  
Hélène Bouchiat ◽  
Ramón Aguado ◽  
Pascal Simon
Keyword(s):  
Josephson Junctions ◽  
Bound States ◽  
Majorana Bound States

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

Bending effect on the Majorana bound states in planar Josephson junctions

2021 ◽  
Author(s):  
Syed Aboubakar Hassan ◽  
Binhe Wu ◽  
Xiaofeng Xu ◽  
Chunrui Wang ◽  
Jun-Cheng Cao
Keyword(s):  
Josephson Junctions ◽  
Bound States ◽  
Majorana Bound States ◽  
Bending Effect

scholarly journals Skyrmion control of Majorana states in planar Josephson junctions

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Narayan Mohanta ◽  
Satoshi Okamoto ◽  
Elbio Dagotto
Keyword(s):  
Josephson Junctions ◽  
Bound States ◽  
Spin Orbit Coupling ◽  
Majorana Bound States ◽  
Rashba Spin ◽  
Dimensional Electron Gas ◽  
And Control ◽  
Zero Phase ◽  
Additional Phase ◽  
Topological Superconductivity

AbstractPlanar Josephson junctions provide a versatile platform, alternative to the nanowire-based geometry, for the generation of the Majorana bound states, due to the additional phase tunability of the topological superconductivity. The proximity induction of chiral magnetism and superconductivity in a two-dimensional electron gas showed remarkable promise to manipulate topological superconductivity. Here, we consider a Josephson junction involving a skyrmion crystal and show that the chiral magnetism of the skyrmions can create and control the Majorana bound states without the requirement of an intrinsic Rashba spin-orbit coupling. Interestingly, the Majorana bound states in our geometry are realized robustly at zero phase difference at the junction. The skyrmion radius, being externally tunable by a magnetic field or a magnetic anisotropy, brings a unique control feature for the Majorana bound states.

scholarly journals Skyrmion Control of Majorana States in Planar Josephson Junctions

2021 ◽  
Author(s):  
Narayan Mohanta ◽  
Satoshi Okamoto ◽  
Elbio Dagotto
Keyword(s):  
Josephson Junctions ◽  
Bound States ◽  
Spin Orbit Coupling ◽  
Majorana Bound States ◽  
Rashba Spin ◽  
Dimensional Electron Gas ◽  
And Control ◽  
Zero Phase ◽  
Additional Phase ◽  
Topological Superconductivity

Abstract Planar Josephson junctions provide a versatile platform, alternative to the nanowire-based geometry, for the generation of the Majorana bound states, due to the additional phase tunability of the topological superconductivity. The proximity induction of chiral magnetism and superconductivity in a two-dimensional electron gas showed remarkable promises to manipulate topological superconductivity. Here, we consider a Josephson junction involving a skyrmion crystal and show that the chiral magnetism of the skyrmions can create and control the Majorana bound states without the requirement of an intrinsic Rashba spin-orbit coupling. Interestingly, the Majorana bound states in our geometry are realized robustly at zero phase difference at the junction. The skyrmion radius, being externally tunable by a magnetic field or a magnetic anisotropy, brings a unique control feature for the Majorana bound states.

scholarly journals Floquet Majorana bound states in voltage-biased planar Josephson junctions

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Changnan Peng ◽  
Arbel Haim ◽  
Torsten Karzig ◽  
Yang Peng ◽  
Gil Refael
Keyword(s):  
Josephson Junctions ◽  
Bound States ◽  
Majorana Bound States

scholarly journals Majorana bound states in hybrid two-dimensional Josephson junctions with ferromagnetic insulators

2018 ◽  
Vol 98 (2) ◽  
Author(s):  
P. Virtanen ◽  
F. S. Bergeret ◽  
E. Strambini ◽  
F. Giazotto ◽  
A. Braggio
Keyword(s):  
Josephson Junctions ◽  
Bound States ◽  
Two Dimensional ◽  
Majorana Bound States

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.

scholarly journals Majorana Bound States Hallmarks in a Quantum Topological Interferometer Ring

2021 ◽  
pp. 2100040
Author(s):  
Ana M. Calle ◽  
Pedro A. Orellana ◽  
Jorge A. Otálora
Keyword(s):  
Bound States ◽  
Majorana Bound States
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