Optimizing the Majorana character of SQUIDs with topologically non-trivial barriers
arXiv:1206.5654 · doi:10.1103/PhysRevB.86.024509
Abstract
We have modeled SQUIDs with topologically non-trivial superconducting junctions and performed an optimization study on the Majorana fermion detection. We find that the SQUID parameters beta_L, and beta_C can be used to increase the ratio of Majorana tunneling to standard Cooper pair tunneling by more than two orders of magnitude. Most importantly, we show that dc SQUIDs including topologically trivial components can still host strong signatures of the Majorana fermion. This paves the way towards the experimental verification of the theoretically predicted Majorana fermion.
accepted by Physical Review B
References in corpus (5)
- Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
- Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
- Crossover from hc/e to hc/2e current oscillations in rings of s-wave superconductors
Cited by in corpus (5)
- Influence of Topological Edge States on the Properties of Al/Bi2Se3/Al Hybrid Josephson Devices
- Magnetotransport and induced superconductivity in Bi based three-dimensional topological insulators
- Quantum-Dot Parity Effects in Trivial and Topological Josephson Junctions
- Microwave-Tunable Diode Effect in Asymmetric SQUIDs with Topological Josephson Junctions
- Nonlocal Andreev reflection, fractional charge and current-phase relation in topological bilayer exciton condensate junctions