Publications (10)
Error mitigation via stabilizer measurement emulation
A. Greene, M. Kjaergaard, M. E. Schwartz +16
Dynamical decoupling (DD) is a widely-used quantum control technique that takes advantage of temporal symmetries in order to partially suppress quantum errors without the need reso…
Two-dimensional epitaxial superconductor-semiconductor heterostructures: A platform for topological superconducting networks
J. Shabani, M. Kjaergaard, H. J. Suominen +12
Progress in the emergent field of topological superconductivity relies on synthesis of new material combinations, combining superconductivity, low density, and spin-orbit coupling…
Superconducting, Insulating, and Anomalous Metallic Regimes in a Gated Two-Dimensional Semiconductor-Superconductor Array
C. G. L. Bøttcher, F. Nichele, M. Kjaergaard +4
The superconductor-insulator transition in two dimensions has been widely investigated as a paradigmatic quantum phase transition. The topic remains controversial, however, because…
Andreev rectifier: a nonlocal conductance signature of topological phase transitions
T. Ã. Rosdahl, A. Vuik, M. Kjaergaard +1
The proximity effect in hybrid superconductor-semiconductor structures, crucial for realizing Majorana edge modes, is complicated to control due to its dependence on many unknown m…
Proximity Effect Transfer from NbTi into a Semiconductor Heterostructure via Epitaxial Aluminum
A. C. C. Drachmann, H. J. Suominen, M. Kjaergaard +4
We demonstrate the transfer of the superconducting properties of NbTi---a large-gap high-critical-field superconductor---into an InAs heterostructure via a thin intermediate layer…
Gate-Tunable Transmon Using Selective-Area-Grown Superconductor-Semiconductor Hybrid Structures on Silicon
A. Hertel, M. Eichinger, L. O. Andersen +12
We present a gate-voltage tunable transmon qubit (gatemon) based on planar InAs nanowires that are selectively grown on a high resistivity silicon substrate using III-V buffer laye…