May 25 2021


15:00 - 16:00


Open event

Jülich Quantum Computing Seminar

Speaker: Tobias Schmitt, PGI-9

Title: Integration of topological insulators into superconducting transmon qubits

Abstract: Topological insulators (TIs) are a novel class of materials which hold great promise for the realization of Majorana zero modes (MZMs) and topological quantum computing (TQC). The integration of TIs into superconducting quantum circuits does not only promise novel methods to probe MZMs but is also technologically relevant as some TQC layouts rely on a readout via well-established circuit quantum electrodynamic (cQED) techniques. Recently, a first step towards this goal was achieved by the realization of hybrid transmon qubits based on TI Josephson junctions. After a brief introduction to TIs and hybrid transmon qubits, I will present preliminary experimental results of such a hybrid TI transmon and give insights in the sophisticated ultra-high vacuum (UHV) fabrication of these devices, which has lately also been considered for the fabrication of standard SIS transmon qubits.

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Meeting ID: 813 1452 6642
Passcode: 01