Majorana fermions in Kitaev chains side-coupled to normal metals
arXiv:2403.02266 · doi:10.1088/1361-648X/ad5ad3
Abstract
Majorana fermions, exotic particles with potential applications in quantum computing, have garnered significant interest in condensed matter physics. The Kitaev model serves as a fundamental framework for investigating the emergence of Majorana fermions in one-dimensional systems. We explore the intriguing question of whether Majorana fermions can arise in a normal metal (NM) side-coupled to a Kitaev chain (KC) in the topologically trivial phase. Our findings reveal affirmative evidence, further demonstrating that the KC, when in the topological phase, can induce additional Majorana fermions in the neighboring NM region. Through extensive parameter analysis, we uncover the potential for zero, one, or two pairs of Majorana fermions in a KC side-coupled to an NM. Additionally, we investigate the impact of magnetic flux on the system and calculate the winding number -a topological invariant used to characterize topological phases.
arXiv comment6 pages, 8 captioned figures
References in corpus (20)
- Unpaired Majorana fermions in quantum wires
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
- Helical liquids and Majorana bound states in quantum wires
- Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
- BCS-BEC Crossover: From High Temperature Superconductors to Ultracold Superfluids
- Realization of a minimal Kitaev chain in coupled quantum dots
- Majorana box qubits
- BCS-BEC Crossover and the Unitary Fermi Gas
- Floquet generation of Majorana end modes and topological invariants
- Majorana Fermions in superconducting 1D systems having periodic, quasiperiodic, and disordered potentials
- Majorana Fermions in superconducting wires: effects of long-range hopping, broken time-reversal symmetry and potential landscapes
- Single fermion manipulation via superconducting phase differences in multiterminal Josephson junctions
- Conductance spectroscopy of topological superconductor wire junctions
- Phase-induced topological superconductivity in a planar heterostructure
- Anomalous Josephson effect and rectification in junctions between Floquet topological superconductors
- Andreev reflection spectroscopy in strongly paired superconductors
- Analytic approach to transport in superconducting junctions with arbitrary carrier density
- Transconductance as a probe of nonlocality of Majorana fermions
- Probing nonlocality of Majorana fermions in Josephson junctions of Kitaev chains connected to normal metal leads