216 citations · 497 across the 12 of their papers we have counts for
12 papers · 1 filter
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…
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…
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…
Orbital-free approach for large-scale electrostatic simulations of quantum nanoelectronics devices
Waldemar Svejstrup, Andrea Maiani, Kevin Van Hoogdalem +1
The route to reliable quantum nanoelectronic devices hinges on precise control of the electrostatic environment. For this reason, accurate methods for electrostatic simulations are…
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…
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…
A quantum magnetic RC circuit
Kevin A. van Hoogdalem, Mathias Albert, Pascal Simon +1
We propose a setup that is the spin analog of the charge-based quantum RC circuit. We define and compute the spin capacitance and the spin resistance of the circuit for both ferrom…
Ultrafast magnon-transistor at room temperature
Kevin A. van Hoogdalem, Daniel Loss
We study sequential tunneling of magnetic excitations in nonitinerant systems (either magnons or spinons) through triangular molecular magnets. It is known that the quantum state o…
Magnetic texture-induced thermal Hall effects
Kevin A. van Hoogdalem, Yaroslav Tserkovnyak, Daniel Loss
Magnetic excitations in ferromagnetic systems with a noncollinear ground state magnetization experience a fictitious magnetic field due to the equilibrium magnetic texture. Here, w…
Frequency dependent transport through a spin chain
Kevin A. van Hoogdalem, Daniel Loss
Motivated by potential applications in spintronics, we study frequency dependent spin transport in nonitinerant one-dimensional spin chains. We propose a system that behaves as a c…
Rectification of spin currents in spin chains
Kevin A. van Hoogdalem, Daniel Loss
We study spin transport in nonitinerant one-dimensional quantum spin chains. Motivated by possible applications in spintronics, we consider rectification effects in both ferromagne…
Implementation of the quantum walk step operator in lateral quantum dots
K. A. van Hoogdalem, M. Blaauboer
We propose a physical implementation of the step operator of the discrete quantum walk for an electron in a one-dimensional chain of quantum dots. The operating principle of the st…