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Majorana modes in a triple-terminal Josephson junction with embedded parallel-coupled double quantum dots
- Publication Year :
- 2015
-
Abstract
- We investigate the Josephson effect in one triple-terminal junction with embedded parallel-coupled double quantum dots. It is found that the inter-superconductor supercurrent has opportunities to oscillate in $4\pi$ period, with the adjustment of the phase differences among the superconductors. What is notable is that such a result is robust and independent of fermion parities, intradot Coulomb strength, and the dot-superconductor coupling manner. By introducing the concept of spinful many-particle Majorana modes, we present the analytical definition of the Majorana operator via superposing electron and hole operators. It can be believed that this work provide a simple but feasible proposal for the realization of Majorana modes in a nonmagnetic system.<br />Comment: 4 pages, 3 figures
- Subjects :
- Superconductivity
Josephson effect
Physics
Coupling
Condensed matter physics
Condensed Matter - Mesoscale and Nanoscale Physics
FOS: Physical sciences
Fermion
Condensed Matter Physics
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
01 natural sciences
Atomic and Molecular Physics, and Optics
010305 fluids & plasmas
Electronic, Optical and Magnetic Materials
Pi Josephson junction
MAJORANA
Quantum dot
Quantum mechanics
Condensed Matter::Superconductivity
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
0103 physical sciences
Coulomb
010306 general physics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....0050db265ac9f7892641654a28d680bd