Honing in on a topological zero-bias conductance peak
arXiv:2204.09925 · doi:10.1088/1361-648X/ad0192
Abstract
A popular signature of Majorana bound states in topological superconductors is the zero-energy conductance peak with a height of . However, a similar zero energy conductance peak with almost the same height can also arise due to non-topological reasons. Here we show that these trivial and topological zero energy conductance peaks can be distinguished via the zero energy local density of states and local magnetization density of states. We find that the zero-energy local density of states exhibits oscillations with a finite period for a trivial zero-bias conductance peak. In contrast, these oscillations disappear for the topological zero-bias conductance peak. On the other hand, zero energy local magnetization density of states shows a periodic oscillation for trivial zero-bias conductance peak, while for topological ZBCP, they vanish. Our results suggest that zero-energy local density of states and local magnetization density of states can be used as an experimental probe to distinguish trivial zero energy conductance peak from topological zero energy conductance peak.
arXiv comment24 pages, 9 figures, 1 Table
References in corpus (55)
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Exponential Protection of Zero Modes in Majorana Islands
- Majorana bound states in a coupled quantum-dot hybrid-nanowire system
- Spin-resolved Andreev levels and parity crossings in hybrid superconductor-semiconductor nanostructures
- 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
- Near-zero-energy end states in topologically trivial spin-orbit coupled superconducting nanowires with a smooth confinement
- Transport spectroscopy of NS nanowire junctions with Majorana fermions
- Zero-voltage conductance peak from weak antilocalization in a Majorana nanowire
- Midgap edge states and pairing symmetry of quasi-one-dimensional organic superconductors
- Class D spectral peak in Majorana quantum wires
- Majorana bound states from exceptional points in non-topological superconductors
- Spin current in ferromagnet/insulator/superconductor junctions
- Zero-Energy Modes from Coalescing Andreev States in a Two-Dimensional Semiconductor-Superconductor Hybrid Platform
- Reproducing topological properties with quasi-Majorana states
- 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
- 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
- Non-Majorana states yield nearly quantized conductance in superconductor-semiconductor nanowire devices
- Zero-energy Andreev bound states from quantum dots in proximitized Rashba nanowires
- Disorder-induced zero-bias peaks in Majorana nanowires
- Spin-parity dependent tunneling of magnetization in single-molecule magnets
- Non-Hermitian topology: a unifying framework for the Andreev versus Majorana states controversy
- Ubiquitous non-Majorana Zero-Bias Conductance Peaks in Nanowire Devices
- Nontopological zero-bias peaks in full-shell nanowires induced by flux tunable Andreev states
- Supercurrent detection of topologically trivial zero-energy states in nanowire junctions
- Distinguishing topological Majorana bound states from trivial Andreev bound states: Proposed tests through differential tunneling conductance spectroscopy
- Density of states of disordered topological superconductor-semiconductor hybrid nanowires
- Generic quantized zero-bias conductance peaks in superconductor-semiconductor hybrid structures
- Odd-frequency superconducting pairing and subgap density of states at the edge of a two-dimensional topological insulator without magnetism
- Robust low-energy Andreev bound states in semiconductor-superconductor heterostructures: Importance of partial separation of component Majorana bound states
- Distinguishing Majorana bound states from localized Andreev bound states by interferometry
- Quantized and unquantized zero-bias tunneling conductance peaks in Majorana nanowires: Conductance below and above
- Plateau regions for zero-bias peaks within 5% of the quantized conductance value
- Odd-frequency superconducting pairing in junctions with Rashba spin-orbit coupling
- Quantum-Dot Parity Effects in Trivial and Topological Josephson Junctions
- Conductance spectroscopy of topological superconductor wire junctions
- Majorana-like Coulomb spectroscopy in the absence of zero bias peaks
- Non-locality of zero-bias anomalies in the topologically-trivial phase of Majorana wires
- Josephson effect in S/F/S junctions: spin bandwidth asymmetry vs. Stoner exchange
- Graphene Enabled Low-Control Quantum Gates between Static and Mobile Spins
- Crossover between trivial zero modes in Majorana nanowires
- Odd-frequency superconducting pairing in Kitaev-based junctions
- Pinning of Andreev bound states to zero energy in two-dimensional superconductor-semiconductor Rashba heterostructures
- Odd-frequency superconductivity near a magnetic impurity in a conventional superconductor
- Entanglement-induced electron coherence in a mesoscopic ring with two magnetic impurities
- Conductance interference in a superconducting Coulomb blockaded Majorana ring
- Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor
- Proposal for measuring the parity anomaly in a topological superconductor ring
- Geometric phases in a scattering process
- Spectroscopic Visualization of a Robust Electronic Response of Semiconducting Nanowires to Deposition of Superconducting Islands