229 citations · 1.5k across the 16 of their papers we have counts for
16 papers
Frequency-resolved decoherence spectroscopy of a semiconductor charge qubit coupled to a high-impedance resonator
Ekaterina Al-Tavil, Wonjin Jang, David J. van Woerkom +10
Superconducting resonators coupled to semiconductor quantum dots provide a powerful platform to investigate light-matter interaction and decoherence mechanisms in solid-state quant…
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…
Microwave spectroscopy of interacting Andreev spins
J. J. Wesdorp, F. J. Matute-Caňadas, A. Vaartjes +13
Andreev bound states are fermionic states localized in weak links between superconductors which can be occupied with spinful quasiparticles. Microwave experiments using superconduc…
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…
In-situ Tuning of the Electric Dipole Strength of a Double Dot Charge Qubit: Charge Noise Protection and Ultra Strong Coupling
P. Scarlino, J. H. Ungerer, D. J. van Woerkom +10
Semiconductor quantum dots, where electrons or holes are isolated via electrostatic potentials generated by surface gates, are promising building blocks for semiconductor-based qua…
Observation of the 4-periodic Josephson effect in indium arsenide nanowires
Dominique Laroche, Daniël Bouman, David J. van Woerkom +9
Quantum computation by non-Abelian Majorana zero modes (MZMs) offers an approach to achieve fault tolerance by encoding quantum information in the non-local charge parity states of…
All-Microwave Control and Dispersive Readout of Gate-Defined Quantum Dot Qubits in Circuit Quantum Electrodynamics
P. Scarlino, D. J. van Woerkom, A. Stockklauser +8
Developing fast and accurate control and readout techniques is an important challenge in quantum information processing with semiconductor qubits. Here, we study the dynamics and t…
Direct microwave measurement of Andreev-bound-state dynamics in a proximitized semiconducting nanowire
M. Hays, G. de Lange, K. Serniak +6
The modern understanding of the Josephson effect in mesosopic devices derives from the physics of Andreev bound states, fermionic modes that are localized in a superconducting weak…
Ballistic superconductivity in semiconductor nanowires
Hao Zhang, Önder Gül, Sonia Conesa-Boj +19
Semiconductor nanowires have opened new research avenues in quantum transport owing to their confined geometry and electrostatic tunability. They have offered an exceptional testbe…
Supercurrent interference in few-mode nanowire Josephson junctions
Kun Zuo, Vincent Mourik, Daniel B. Szombati +12
Junctions created by coupling two superconductors via a semiconductor nanowire in the presence of high magnetic fields are the basis for detection, fusion, and braiding of Majorana…
Josephson radiation and shot noise of a semiconductor nanowire junction
David J. van Woerkom, Alex Proutski, Ruben J. J. van Gulik +6
We measured the Josephson radiation emitted by an InSb semiconductor nanowire junction utilizing photon assisted quasiparticle tunneling in an AC-coupled superconducting tunnel jun…
Hard superconducting gap in InSb nanowires
Önder Gül, Hao Zhang, Folkert K. de Vries +14
Topological superconductivity is a state of matter that can host Majorana modes, the building blocks of a topological quantum computer. Many experimental platforms predicted to sho…
Microwave spectroscopy of spinful Andreev bound states in ballistic semiconductor Josephson junctions
David J. van Woerkom, Alex Proutski, Bernard van Heck +7
The superconducting proximity effect in semiconductor nanowires has recently enabled the study of new superconducting architectures, such as gate-tunable superconducting qubits and…
1 minute parity lifetime of a NbTiN Cooper-pair transistor
David J. van Woerkom, Attila Geresdi, Leo P. Kouwenhoven
The parity modulation of the ground state of a superconducting island is a direct consequence of the presence of the Cooper pair condensate preferring an even number of charge carr…
Towards high mobility InSb nanowire devices
Önder Gül, David J. van Woerkom, Ilse van Weperen +4
We study the low-temperature electron mobility of InSb nanowires. We extract the mobility at 4.2 Kelvin by means of field effect transport measurements using a model consisting of…