Quantum capacitance with an auxiliary quantum dot measures ground-state energy splitting and Majorana overlap in topological qubits via peak positions and magnitudes in even and odd parity sectors.
Aghaee, et al., InAs-Al Hybrid Devices Passing the Topological Gap Protocol (2022).arXiv:2103.12217
4 Pith papers cite this work. Polarity classification is still indexing.
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cond-mat.mes-hall 4years
2026 4verdicts
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InAs-Pb hybrid nanowire tetron achieves ~20 s parity switching time with h/2e-periodic bimodal capacitance shifts, using a new rf technique to resolve wire-end states at μeV precision.
Full-shell hybrid nanowires develop a topologically trivial skin at their ends under smooth confinement that blocks quasi-Majorana states, making tunneling spectroscopy unambiguous for true MZMs.
Rotating the Zeeman field in the wire attached to a quantum dot reveals Majorana zero modes through significant changes in dot spin polarization and identifies the topological transition via non-linear field dependence.
citing papers explorer
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Assessing Majorana states and qubits through quantum capacitance
Quantum capacitance with an auxiliary quantum dot measures ground-state energy splitting and Majorana overlap in topological qubits via peak positions and magnitudes in even and odd parity sectors.
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20 Second Parity Lifetime in an InAs--Pb Tetron Device
InAs-Pb hybrid nanowire tetron achieves ~20 s parity switching time with h/2e-periodic bimodal capacitance shifts, using a new rf technique to resolve wire-end states at μeV precision.
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Absence of Quasi-Majorana False Positives in Full-Shell Hybrid Nanowires
Full-shell hybrid nanowires develop a topologically trivial skin at their ends under smooth confinement that blocks quasi-Majorana states, making tunneling spectroscopy unambiguous for true MZMs.
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Rotating Zeeman field as a tool for Majorana zero mode detection in topological superconducting wire
Rotating the Zeeman field in the wire attached to a quantum dot reveals Majorana zero modes through significant changes in dot spin polarization and identifies the topological transition via non-linear field dependence.