Superconducting gatemon qubit based on a proximitized two-dimensional electron gas
The coherent tunnelling of Cooper pairs across Josephson junctions (JJs) generates a
nonlinear inductance that is used extensively in quantum information processors based on …
nonlinear inductance that is used extensively in quantum information processors based on …
Coherent control of a hybrid superconducting circuit made with graphene-based van der Waals heterostructures
Quantum coherence and control is foundational to the science and engineering of quantum
systems,. In van der Waals materials, the collective coherent behaviour of carriers has been …
systems,. In van der Waals materials, the collective coherent behaviour of carriers has been …
Singlet-doublet transitions of a quantum dot Josephson junction detected in a transmon circuit
We realize a hybrid superconductor-semiconductor transmon device in which the
Josephson effect is controlled by a gate-defined quantum dot in an In As-Al nanowire …
Josephson effect is controlled by a gate-defined quantum dot in an In As-Al nanowire …
A gate tunable transmon qubit in planar Ge
Gate-tunable transmons (gatemons) employing semiconductor Josephson junctions have
recently emerged as building blocks for hybrid quantum circuits. In this study, we present a …
recently emerged as building blocks for hybrid quantum circuits. In this study, we present a …
Parity-protected superconductor-semiconductor qubit
Coherence of superconducting qubits can be improved by implementing designs that protect
the parity of Cooper pairs on superconducting islands. Here, we introduce a parity-protected …
the parity of Cooper pairs on superconducting islands. Here, we introduce a parity-protected …
Observation of Josephson harmonics in tunnel junctions
Approaches to developing large-scale superconducting quantum processors must cope with
the numerous microscopic degrees of freedom that are ubiquitous in solid-state devices …
the numerous microscopic degrees of freedom that are ubiquitous in solid-state devices …
A perspective on semiconductor-based superconducting qubits
R Aguado - Applied Physics Letters, 2020 - pubs.aip.org
Following the demonstration of semiconductor-based Josephson junctions, which are fully
tunable by electrical means, new routes have been opened for the study of hybrid …
tunable by electrical means, new routes have been opened for the study of hybrid …
Spectroscopy of spin-split Andreev levels in a quantum dot with superconducting leads
We use a hybrid superconductor-semiconductor transmon device to perform spectroscopy of
a quantum dot Josephson junction tuned to be in a spin-1/2 ground state with an unpaired …
a quantum dot Josephson junction tuned to be in a spin-1/2 ground state with an unpaired …
Superconducting resonators with voltage-controlled frequency and nonlinearity
Voltage-tunable superconductor-semiconductor devices offer a unique platform to realize
dynamic tunability in superconducting quantum circuits. By galvanically connecting a gated …
dynamic tunability in superconducting quantum circuits. By galvanically connecting a gated …
Gate-tunable transmon using selective-area-grown superconductor-semiconductor hybrid structures on silicon
A Hertel, M Eichinger, LO Andersen… - Physical Review …, 2022 - APS
We present a gate-voltage-tunable transmon qubit (gatemon) based on planar In As
nanowires that are selectively grown on a high-resistivity silicon substrate using III-V buffer …
nanowires that are selectively grown on a high-resistivity silicon substrate using III-V buffer …