Class D spectral peak in Majorana quantum wires

Abstract

Proximity coupled spin-orbit quantum wires have recently been shown to support midgap Majorana states at critical points. We show that in the presence of disorder these systems are prone to the buildup of a second bandcenter anomaly, which is of different physical origin but shares key characteristics with the Majorana state: it is narrow in width, insensitive to magnetic fields, carries unit spectral weight, and is rigidly tied to the band center. Depending on the parity of the number of subgap quasiparticle states, a Majorana mode does or does not coexist with the impurity generated peak. The strong 'entanglement' between the two phenomena may hinder an unambiguous detection of the Majorana by spectroscopic techniques.

4+ pages, 3 figures, qualitative discussion is added

References in corpus (4)

• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Interaction Effects in Topological Superconducting Wires Supporting Majorana Fermions
• Search for Majorana fermions in multiband semiconducting nanowires

Cited by in corpus (217)

• Majorana Zero Modes and Topological Quantum Computation
• Realizing Majorana zero modes in superconductor-semiconductor heterostructures
• Superconductor-Nanowire Devices from Tunneling to the Multichannel Regime: Zero-Bias Oscillations and Magnetoconductance Crossover
• Evidence for Majorana bound state in an iron-based superconductor
• Majorana mode in vortex core of Bi2Te3/NbSe2 topological insulator-superconductor heterostructure
• Topological Superconductivity and Majorana Fermions in RKKY Systems
• Zero-bias peaks in spin-orbit coupled superconducting wires with and without Majorana end-states
• From Andreev to Majorana bound states in hybrid superconductor-semiconductor nanowires
• Scaling of Majorana Zero-Bias Conductance Peaks
• Andreev bound states versus Majorana bound states in quantum dot-nanowire-superconductor hybrid structures: Trivial versus topological zero-bias conductance peaks
• Towards a realistic transport modeling in a superconducting nanowire with Majorana fermions
• Ballistic Majorana nanowire devices
• A Majorana smoking gun for the superconductor-semiconductor hybrid topological system
• Random-matrix theory of Majorana fermions and topological superconductors
• Ballistic superconductivity in semiconductor nanowires
• Physical mechanisms for zero-bias conductance peaks in Majorana nanowires
• Majorana bound states in non-homogeneous semiconductor nanowires
• Two terminal charge tunneling: Disentangling Majorana zero modes from partially separated Andreev bound states in semiconductor-superconductor heterostructures
• InAs-Al Hybrid Devices Passing the Topological Gap Protocol
• Quantized zero bias conductance plateau in semiconductor-superconductor heterostructures without non-Abelian Majorana zero modes
• SNS junctions in nanowires with spin-orbit coupling: role of confinement and helicity on the sub-gap spectrum
• Next steps of quantum transport in Majorana nanowire devices
• Disorder-induced zero-bias peaks in Majorana nanowires
• Soft Superconducting Gap in Semiconductor Majorana Nanowires
• Majorana Fermions and Odd-frequency Cooper Pairs in a Nano Wire
• Topological Yu-Shiba-Rusinov chain from spin-orbit coupling
• Supercurrent detection of topologically trivial zero-energy states in nanowire junctions
• Single fermion manipulation via superconducting phase differences in multiterminal Josephson junctions
• Majorana splitting from critical currents in Josephson junctions
• Zero-field Topological Superconductivity in Ferromagnetic Hybrid Nanowires
• Majorana nanowires for topological quantum computation
• Probing Majorana Physics in Quantum Dot Shot Noise Experiments
• Multiple Andreev reflection and critical current in topological superconducting nanowire junctions
• Effects of electron scattering on the topological properties of nanowires: Majorana fermions from disorder and superlattices
• Estimating disorder and its adverse effects in semiconductor Majorana nanowires
• Signatures of Majorana Zero Modes in Spin-Resolved Current Correlations
• Density of states of disordered topological superconductor-semiconductor hybrid nanowires
• Tunneling spectra simulation of interacting Majorana wires
• Hunting for Majoranas
• Detection of a Majorana-fermion zero mode by a T-shaped quantum-dot structure
• Majorana Fermions in Chiral Topological Ferromagnetic Nanowires
• Three-terminal nonlocal conductance in Majorana nanowires: Distinguishing topological and trivial in realistic systems with disorder and inhomogeneous potential
• Quantized conductance of Majorana zero mode in the vortex of the topological superconductor (Li0.84Fe0.16)OHFeSe
• Majorana wavefunction oscillations, fermion parity switches, and disorder in Kitaev chains
• Generic quantized zero-bias conductance peaks in superconductor-semiconductor hybrid structures
• Role of dissipation in realistic Majorana nanowires
• Majorana Fermion Induced Non-local Current Correlations in Spin-orbit Coupled Superconducting Wires
• Topological quantum states of matter in iron-based superconductors: From concepts to material realization
• Zero-energy pinning of topologically-trivial bound states in multi-band semiconductor-superconductor nanowires
• Wireless Majorana Bound States: From Magnetic Tunability to Braiding
• Detecting Majoranas in 1D wires by charge sensing
• Robust low-energy Andreev bound states in semiconductor-superconductor heterostructures: Importance of partial separation of component Majorana bound states
• Effects of the electrostatic environment on the Majorana nanowire devices
• Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states
• Electron temperature and tunnel coupling dependence of zero-bias and almost-zero-bias conductance peaks in Majorana nanowires
• Topology vs. Anderson localization: non-perturbative solutions in one dimension
• Distinguishing Majorana bound states from localized Andreev bound states by interferometry
• Majorana Fermions on Zigzag Edge of Monolayer Transition Metal Dichalcogenides
• Weak measurement protocols for Majorana bound state identification
• Effects of large induced superconducting gap on semiconductor Majorana nanowires
• How to infer non-Abelian statistics and topological invariants from tunneling conductance properties of realistic Majorana nanowires
• Proximity effect and Majorana bound states in clean semiconductor nanowires coupled to disordered superconductors
• Ac Josephson Effect in Topological Josephson Junctions
• Charge impurity effects in hybrid Majorana nanowires
• Superconducting phenomena in systems with unconventional magnets
• Spin and Charge Signatures of Topological Superconductivity in Rashba Nanowires
• In search of Majorana
• Mapping the Topological Phase Diagram of Multiband Semiconductors with Supercurrents
• Approaching a topological phase transition in Majorana nanowires
• Conductance fingerprint of Majorana fermions in the topological Kondo effect
• Dynamics of Majorana-based qubits operated with an array of tunable gates
• Presence versus absence of end-to-end nonlocal conductance correlations in Majorana nanowires: Majorana bound states versus Andreev bound states
• Conductance spectroscopy of topological superconductor wire junctions
• From Andreev bound states to Majorana fermions in topological wires on superconducting substrates : a story of mutation
• Tuning the Dirac point to the Fermi level in the ternary topological insulator (Bi${}_{1-x}$Sb${}_x$)${}_2$Te${}_3$
• Detection of Majorana Kramers pairs using a quantum point contact
• Stabilizing multiple topological fermions on a quantum computer
• Bulk disorder in the superconductor affects proximity-induced topological superconductivity
• Evidence for Majorana bound states in transport properties of hybrid structures based on helical liquids
• Pseudo-ballistic transport in 3D topological insulator quantum wires
• Quasiclassical theory of disordered multi-channel Majorana quantum wires
• Local and Nonlocal Transport Spectroscopy in Planar Josephson Junctions
• Giant shot noise from Majorana zero modes in topological trijunctions
• Electrical control of Majorana Bound States Using Magnetic Stripes
• Odd-frequency pair in topological superconductivity of 1D magnetic chain
• Topological and symmetry broken phases of Z_N parafermions in one dimension
• Many-body Majorana operators and the equivalence of parity sectors
• Detecting topological superconductivity using low-frequency doubled Shapiro steps
• Partially-separated Majorana modes in a disordered medium
• Disentangling Majorana fermions from conventional zero energy states in semiconductor quantum wires
• Tunneling transport in NSN junctions made of Majorana nanowires across the topological quantum phase transition
• Spectral properties, topological patches, and effective phase diagrams of finite disordered Majorana nanowires
• Subband occupation in semiconductor-superconductor nanowires
• Topological superconductivity and Majorana states in low-dimensional systems
• Majorana zero modes choose Euler numbers - revealed by full counting statistics
• Enhanced topological superconductivity in spatially modulated planar Josephson junctions
• Majorana Flat Bands in s-Wave Gapless Topological Superconductors
• Anomalous interference in Aharonov-Bohm rings with two Majorana bound states
• From fractional solitons to Majorana fermions in a paradigmatic model of topological superconductivity
• Protocol to identify a topological superconducting phase in a three-terminal device
• Josephson effect in superconducting wires supporting multiple Majorana edge states
• Lifetime of Majorana qubits in Rashba nanowires with non-uniform chemical potential
• Detecting Perfect Transmission in Josephson Junctions on the Surface of Three Dimensional Topological Insulators
• X-shaped and Y-shaped Andreev resonance profiles in a superconducting quantum dot
• Probability and (Braiding) Statistics in Majorana nanowires
• Majorana/Andreev crossover and the fate of the topological phase transition in inhomogeneous nanowires
• Conductance spectroscopy on Majorana wires and the inverse proximity effect
• Universal nonequilibrium signatures of Majorana zero modes in quench dynamics
• Coulomb interaction effects on the Majorana states in quantum wires
• Electrical detection of topological quantum phase transitions in disordered Majorana nanowires
• Gate-Defined Topological Josephson Junctions in Bernal Bilayer Graphene
• Crossover between trivial zero modes in Majorana nanowires
• Proximity-induced gap in nanowires with a thin superconducting shell
• Proposed Method for Distinguishing Majorana Peak from Other Peaks: Tunneling Spectroscopy with Ohmic Dissipation using Resistive Electrodes
• Phenomenology of soft gap, zero bias peak, and zero mode splitting in ideal Majorana nanowires
• Probing Robust Majorana Signatures by Crossed Andreev Reflection with a Quantum Dot
• Effects of disorder on Coulomb-assisted braiding of Majorana zero modes
• On-demand large-conductance in trivial zero-bias tunneling peaks in Majorana nanowires
• Nonperturbative phase diagram of interacting disordered Majorana nanowires
• Finite length effect on supercurrents between trivial and topological superconductors
• Interaction induced hybridization of Majorana zero-modes in a coupled quantum-dot hybrid-nanowire system
• Kitaev spin models from topological nanowire networks
• Spin Transfer of Quantum Information between Majorana Modes and a Resonator
• Progress in superconductor-semiconductor topological Josephson junctions
• Emergent vortex Majorana zero mode in iron-based superconductors
• Generalized Eilenberger theory for Majorana zero-mode-carrying disordered $p$-wave superconductors
• Identifying trivial and Majorana zero-energy modes using the Majorana polarization
• Fingerprints of Majorana fermions in current-correlations measurements from a superconducting tunnel microscope
• Disorder-induced topological transitions in multichannel Majorana wires
• Luttinger liquid in contact with a Kramers pair of Majorana bound states
• Enhanced current noise correlations in a Coulomb-Majorana device
• Mitigating disorder-induced zero-energy states in weakly-coupled semiconductor-superconductor hybrid systems
• Time-delay matrix, midgap spectral peak, and thermopower of an Andreev billiard
• Intrinsic spin-orbit interaction in diffusive normal wire Josephson weak links: supercurrent and density of states
• Robust topological phase in proximitized core-shell nanowires coupled to multiple superconductors
• Gate defined wires in HgTe quantum wells: from Majorana fermions to spintronics
• Density of states, transport, and topology in disordered Majorana nanowires
• Characterization of Shapiro steps in the presence of a 4π-periodic Josephson current
• Josephson junction detectors for Majorana modes and Dirac fermions
• Enhanced topological protection in planar quasi-one-dimensional channels with periodically-modulated width
• Probing Majorana-like states in quantum dots and quantum rings
• Fano effect in Aharonov-Bohm ring with topologically superconducting bridge
• Quality factor for zero-bias conductance peaks in Majorana nanowire
• Signatures of Majorana fermions in hybrid normal-superconducting rings
• Non-Hermitian zero-energy pinning of Andreev and Majorana bound states in superconductor-semiconductor systems
• Probing Majorana and Andreev Bound States with Waiting Times
• Substrate-induced Majorana renormalization in topological nanowires
• Kitaev chain with a quantum dot
• Superconducting proximity effect in semiconductor nanowires
• Majorana bound state engineering via efficient real-space parameter optimization
• Can non-local conductance spectra conclusively signal Majorana zero modes? -- Insights from von Neumann entropy
• Theory of Coulomb blockaded transport in realistic Majorana nanowires
• Entanglement measures of Majorana bound states
• Fractional Josephson effect in a quadruple quantum dot
• Machine learning optimization of Majorana hybrid nanowires
• Effects of finite superconducting coherence lengths and of phase gradients in topological SN and SNS junctions and rings
• Reentrant topological transitions with Majorana end states in 1D superconductors by lattice modulation
• Identify the topological superconducting order in a multi-band quantum wire
• Finite-temperature conductance of weakly interacting quantum wires with Rashba spin-orbit coupling
• Disordered Majorana nanowires: Studying disorder without any disorder
• Signatures of Topological Superconductivity and Parafermion Zero Modes in Fractional Quantum Hall Edges
• Curvature of gap closing features and the extraction of Majorana nanowire parameters
• Phase space methods for Majorana fermions
• Stability of Disordered Topological Superconducting Phases in Magnet--Superconductor Hybrid Systems
• Machine Learning the Disorder Landscape of Majorana Nanowires
• Topological aspects of $\pi$ phase winding junctions in superconducting wires
• Multiple Andreev reflections in s-wave superconductor-quantum dot- topological superconductor tunnel junctions and Majorana bound states
• Random matrix theory for the robustness, quantization, and end-to-end correlation of zero-bias conductance peaks in a class D ensemble
• Majorana versus Andreev bound state energy oscillations in a 1D semiconductor-superconductor heterostructure
• Disorder-induced subgap states and Majorana zero-energy edge modes in two-dimensional topological insulator-superconductor hybrid structures
• Transport signatures of topological phases in double nanowires probed by spin-polarized STM
• Fidelity in topological superconductors with end Majorana fermions
• Statistical Majorana Bound State Spectroscopy
• Probing Majorana bound states through an inhomogeneous Andreev double dot interferometer
• Extended Majorana zero modes in a topological superconducting-normal T-junction
• Detecting Majorana fermions by use of superconductor-quantum Hall liquid junctions
• Diagnosing Topological Phase Transitions in 1D Superconductors using Berry Singularity Markers
• Fano resonances can provide two criteria to distinguish Majorana bound states from other candidates in experiments
• Odd-frequency pairing due to Majorana and trivial Andreev bound states
• Magnetically stable zero-bias anomaly in Andreev contact to the magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$
• Spin-orbit coupling and proximity effects in metallic carbon nanotubes
• Fermion-parity switches of the ground state of Majorana billiards
• Robust Zero Energy Bound States Localized at Magnetic Impurities in Iron-based Superconductors
• Majorana Zero Modes in Cylindrical Semiconductor Quantum Wire
• Josephson current signature of Floquet Majorana and topological accidental zero modes in altermagnet heterostructures
• Topological phase transition driven by magnetic field in one-dimensional topological superconductor rings
• Study on the tunneling spectroscopy of $N-pS$ junction and $N-hS$ junction
• Spin selective coupling to Majorana zero modes in mixed singlet and triplet superconducting nanowire
• Disorder effects in planar semiconductor-superconductor structures: Majorana wires versus Josephson junctions
• Universality and quantized response in bosonic nonfractionalized tunneling
• Topological phase diagram of the disordered 2XY model in presence of generalized Dzyaloshinskii-Moriya Interaction
• Anomalous proximity effect under Andreev and Majorana bound states
• Topological gap protocol based machine learning optimization of Majorana hybrid wires
• Stabilizing topological superconductivity in disordered spin-orbit coupled semiconductor-superconductor heterostructures
• Quantum Phase Transitions in Proximitized Josephson Junctions
• Robustness of vortex-bound Majorana zero modes against correlated disorder
• ${\mathbb{Z}}_2$~Green's function topology of Majorana wires
• Effect of a tunnel barrier on the scattering from a Majorana bound state in an Andreev billiard
• Effect of incommensurate disorder on the resonant tunneling through Majorana bound states on the topological superconductor chains
• Realization of the Non-endpoint Majorana Bound States in an Extended Kitaev Chain
• Honing in on a topological zero-bias conductance peak
• From Majorana fermions to topological quantum computation in semiconductor/superconductor heterostructures
• Screening cloud and non-Fermi-liquid scattering in topological Kondo devices
• Mesoscopic fluctuations in superconductor-topological insulator Josephson junctions
• Universal distributions from non-Hermitian Perturbation of Zero-Modes
• Majorana polarization in disordered heterostructures
• Control of Majorana Edge Modes by a g-factor Engineered Nanowire Spin Transistor
• Universal Broadening of Zero Modes: A General Framework and Identification
• Detecting Majorana modes through Josephson junction ring-quantum dot hybrid architectures
• Probing Majorana fermions in the tunneling spectra of a resonant level
• Anderson localization of a Majorana fermion
• Preserving Topology while Breaking Chirality: From Chiral Orthogonal to Anti-symmetric Hermitian Ensemble
• Rashba spin-orbit coupling and artificially engineered topological superconductors
• Absence of Quasi-Majorana False Positives in Full-Shell Hybrid Nanowires
• Majorana modes in graphene strips: polarization, wavefunctions, disorder, and Andreev states
• Proximity-induced superconductivity generated by thin films: Effects of Fermi surface mismatch and disorder in the superconductor
• Theory of Berry Singularity Markers: Diagnosing Topological Phase Transitions via Lock-In Tomography