activity
20142026
most citedInAs-Al Hybrid Devices Passing the Topological Gap Protocol

216 citations · 341 across the 10 of their papers we have counts for

collaborators

10 papers

cond-mat.mes-hall2026

20 Second Parity Lifetime in an InAs--Pb Tetron Device

Morteza Aghaee, Zulfi Alam, Mariusz Andrzejczuk +162

A central promise of topological quantum computing is that increasing the excitation gap improves device performance significantly. Here, we experimentally validate this principle…

cond-mat.mes-hall2025

Distinct Lifetimes for and Loop Measurements in a Majorana Tetron Device

Morteza Aghaee, Zulfi Alam, Rikke Andersen +164

We present a hardware realization and measurements of a tetron qubit device in a superconductor-semiconductor heterostructure. The device architecture contains two parallel superco…

cond-mat.mes-hall2025

Response to recent comments on Phys. Rev. B 107, 245423 (2023) and Subsection S4.3 of the Supp. Info. for Nature 638, 651-655 (2025)

Morteza Aghaee, Zulfi Alam, Mariusz Andrzejczuk +127

The topological gap protocol (TGP) is a statistical test designed to identify a topological phase with high confidence and without human bias. It is used to determine a promising p…

quant-ph2025★ 5 cited

Roadmap to fault tolerant quantum computation using topological qubit arrays

David Aasen, Morteza Aghaee, Zulfi Alam +179

We describe a concrete device roadmap towards a fault-tolerant quantum computing architecture based on noise-resilient, topologically protected Majorana-based qubits. Our roadmap e…

cond-mat.mes-hall2024★ 4 cited

Interferometric Single-Shot Parity Measurement in an InAs-Al Hybrid Device

Morteza Aghaee, Alejandro Alcaraz Ramirez, Zulfi Alam +159

The fusion of non-Abelian anyons or topological defects is a fundamental operation in measurement-only topological quantum computation. In topological superconductors, this operati…

cond-mat.mes-hall2022★ 216 cited

InAs-Al Hybrid Devices Passing the Topological Gap Protocol

Morteza Aghaee, Arun Akkala, Zulfi Alam +124

We present measurements and simulations of semiconductor-superconductor heterostructure devices that are consistent with the observation of topological superconductivity and Majora…

cond-mat.mes-hall2021★ 14 cited

Supercurrent parity-meter in a nanowire Cooper-pair transistor

Ji-Yin Wang, Constantin Schrade, Vukan Levajac +13

We study a Cooper-pair transistor realized by two Josephson weak links that enclose a superconducting island in an InSb-Al hybrid nanowire. When the nanowire is subject to a magnet…

cond-mat.mes-hall2020★ 25 cited

Single-shot fabrication of semiconducting-superconducting nanowire devices

Francesco Borsoi, Grzegorz P. Mazur, Nick van Loo +13

Semiconducting-superconducting nanowires attract widespread interest owing to the possible presence of non-abelian Majorana zero modes, which hold promise for topological quantum c…

cond-mat.mes-hall2020★ 77 cited

Shadow-wall lithography of ballistic superconductor-semiconductor quantum devices

Sebastian Heedt, Marina Quintero-Pérez, Francesco Borsoi +14

The realization of a topological qubit calls for advanced techniques to readily and reproducibly engineer induced superconductivity in semiconductor nanowires. Here, we introduce a…

cond-mat.mtrl-sci2014

Evolution Process of Wurtzite ZnO Films on Cubic MgO (001) Substrates: a Structural, Optical and Electronic Investigation of the Misfit Structures

Hua Zhou, Hui-Qiong Wang, Yaping Li +8

The interface between hexagonal ZnO films and cubic MgO (001) substrates, fabricated through molecular beam epitaxy, are thoroughly investigated. X-ray diffraction and (scanning) t…