Dimerization-induced topological superconductivity in a Rashba nanowire

Abstract

We analyze influence of a dimerization on the topological phases of the Rashba nanowire proximitized to a superconducting substrate. We find that periodic alternations of the hopping integral and spin-orbit coupling can lead to band inversion, inducing transition to topologically nontrivial superconducting phase that hosts the Majorana zero-energy modes. This "dimerization-induced topological superconductivity" completely repels the topological phase of the uniform nanowire, whenever they happen to overlap. We provide an analytical justification for this puzzling behavior based on the symmetry/parity considerations and discuss feasible spectroscopic methods for its empirical observation. We also test stability of the topological superconducting phases against electrostatic disorder.

arXiv comment9 pages, 11 figures, 2 movies

References in corpus (76)

• 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
• Topological invariants of time-reversal-invariant band structures
• Topological insulators and superconductors: ten-fold way and dimensional hierarchy
• Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
• Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
• Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
• Majorana bound states in a coupled quantum-dot hybrid-nanowire system
• Realizing Majorana zero modes in superconductor-semiconductor heterostructures
• Anomalous modulation of a zero bias peak in a hybrid nanowire-superconductor device
• Majorana fermions in chains of magnetic atoms on a superconductor
• Non-Abelian Topological Order in S-Wave Superfluids of Ultracold Fermionic Atoms
• Topological Phases of Noncentrosymmetric Superconductors: Edge States, Majorana Fermions, and the Non-Abelian Statistics
• Topological Superconductivity and Majorana Fermions in RKKY Systems
• Topological superconducting phase in helical Shiba chains
• Scaling of Majorana Zero-Bias Conductance Peaks
• Majorana fermions emerging from magnetic nanoparticles on a superconductor without spin-orbit coupling
• Evidence of topological superconductivity in planar Josephson junctions
• Interplay between classical magnetic moments and superconductivity in quantum one-dimensional conductors: toward a self-sustained topological Majorana phase
• Ballistic Majorana nanowire devices
• Probing Atomic Structure and Majorana Wavefunctions in Mono-Atomic Fe-chains on Superconducting Pb-Surface
• Topological Superconductivity in a Phase-Controlled Josephson Junction
• Multichannel Generalization of Kitaev's Majorana End States and a Practical Route to Realize Them in Thin Films
• Self-Organized Topological State with Majorana Fermions
• Topological states in engineered atomic lattices
• Quantized conductance at the Majorana phase transition in a disordered superconducting wire
• Non-Abelian Topological Orders and Majorana Fermions in Spin-Singlet Superconductors
• Distinguishing a Majorana zero mode using spin resolved measurements
• High-resolution studies of the Majorana atomic chain platform
• Majorana Fermions in superconducting 1D systems having periodic, quasiperiodic, and disordered potentials
• Scattering formula for the topological quantum number of a disordered multi-mode wire
• Majorana fermions in superconducting nanowires without spin-orbit coupling
• Topological superconducting phases in disordered quantum wires with strong spin-orbit coupling
• Information transfer by vector spin chirality in finite magnetic chains
• Topological properties of spin-triplet superconductors and the Fermi surface topology in the normal state
• Majorana fermions in superconducting helical magnets
• Exploring a proximity-coupled Co chain on Pb(110) as a possible Majorana platform
• Majorana End-States in Multi-band Microstructures with Rashba Spin-Orbit Coupling
• Fermion Fractionalization to Majorana Fermions in Dimerized Kitaev Superconductor
• On controlling the bound states in quantum-dot hybrid-nanowire
• Differential Conductance and Quantum Interference in Kondo Systems
• Engineering Hybrid Epitaxial InAsSb/Al Nanowire Materials for Stronger Topological Protection
• Self-Organized Topological Superconductivity in a Yu-Shiba-Rusinov Chain
• Majorana wavefunction oscillations, fermion parity switches, and disorder in Kitaev chains
• Fermionic and Majorana Bound States in Hybrid Nanowires with Non-Uniform Spin-Orbit Interaction
• Visualising Majorana bound states in 1D and 2D using the generalized Majorana polarization
• Phase tunable second-order topological superconductor
• Proximity effect and Majorana bound states in clean semiconductor nanowires coupled to disordered superconductors
• Symmetry-Breaking Topological Insulators in the ${\mathbb{Z}}_2$ Bose-Hubbard Model
• Majorana bound states in open quasi-1D and 2D systems with transverse Rashba coupling
• Topological Phases of Inhomogeneous Superconductivity
• Strongly Correlated Bosons on a Dynamical Lattice
• Local and nonlocal order parameters in the Kitaev chain
• Flat Majorana bands in 2-d lattices with inhomogeneous magnetic fields: topology and stability
• Bulk disorder in the superconductor affects proximity-induced topological superconductivity
• Majoranas in Noisy Kitaev Wires
• Disorder-induced Majorana zero modes in a dimerized Kitaev superconductor chain
• Exact solution to an interacting dimerized Kitaev model at symmetric point
• Characterization of topological phases of modified dimerized Kitaev chain via edge correlation functions
• Self-stabilizing temperature driven crossover between topological and non-topological ordered phases in one-dimensional conductors
• Exact solutions and topological phase diagram in interacting dimerized Kitaev topological superconductors
• On the bulk boundary correspondence and the existence of Majorana bound states on the edges of 2D topological superconductors
• Majorana quasiparticles of inhomogeneous Rashba chain
• Interplay of Magnetic Order, Pairing and Phase Separation in a One Dimensional Spin Fermion Model
• Disorder-induced topological transitions in multichannel Majorana wires
• Identification of Majorana Modes in Interacting Systems by Local Integrals of Motion
• Majorana fermions in finite-size strips with in-plane magnetic fields
• Detection of topological phases by quasi-local operators
• Topological superconductivity at finite temperatures in proximitized magnetic nanowires
• Electrostatical formation of the Majorana quasiparticles in the quantum dot--nanoring structure
• Strong Disorder Real-Space Renormalization for the Many-Body-Localized phase of random Majorana models
• Delocalisation of Majorana quasiparticles in plaquette--nanowire hybrid system
• Topological spin-singlet superconductors with underlying sublattice structure
• Gap oscillations and Majorana bound states in magnetic chains on superconducting honeycomb lattices

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• Effects of anisotropic correlations in fermionic zero-energy bound states of topological phases
• Instability of Majorana states in Shiba chains due to leakage into a topological substrate
• Localization and Topology in Noncentrosymmetric Superconductors with Disorder
• Majorana Bound State leakage to impurity in Su-Schrieffer-Heeger-Rashba scenario